Vulnerabilities (CVE)

Filtered by vendor Cisco
Filtered by product Email Security Appliance
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Total 57 CVE
CVE Vendors Products Updated CVSS v2 CVSS v3
CVE-2020-3548 1 Cisco 1 Email Security Appliance 2025-07-31 N/A 5.3 MEDIUM
A vulnerability in the Transport Layer Security (TLS) protocol implementation of Cisco AsyncOS software for Cisco Email Security Appliance (ESA) could allow an unauthenticated, remote attacker to cause high CPU usage on an affected device, resulting in a denial of service (DoS) condition. The vulnerability is due to inefficient processing of incoming TLS traffic. An attacker could exploit this vulnerability by sending a series of crafted TLS packets to an affected device. A successful ...

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CVE-2017-6661 1 Cisco 2 Content Security Management Appliance, Email Security Appliance 2025-04-20 4.3 MEDIUM 6.1 MEDIUM
A vulnerability in the web-based management interface of Cisco Email Security Appliance (ESA) and Cisco Content Security Management Appliance (SMA) could allow an unauthenticated, remote attacker to conduct a cross-site scripting (XSS) attack against a user of the web-based management interface of an affected device, aka Message Tracking XSS. More Information: CSCvd30805 CSCvd34861. Known Affected Releases: 10.0.0-203 10.1.0-049.
CVE-2017-3800 1 Cisco 1 Email Security Appliance 2025-04-20 5.0 MEDIUM 5.8 MEDIUM
A vulnerability in the content scanning engine of Cisco AsyncOS Software for Cisco Email Security Appliances (ESA) could allow an unauthenticated, remote attacker to bypass configured message or content filters on the device. Affected Products: This vulnerability affects all releases prior to the first fixed release of Cisco AsyncOS Software for Cisco Email Security Appliances, both virtual and hardware appliances, if the software is configured to apply a message filter or content filter to inco ...

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CVE-2017-6783 1 Cisco 3 Content Security Management Appliance, Email Security Appliance, Web Security Appliance 2025-04-20 4.0 MEDIUM 4.3 MEDIUM
A vulnerability in SNMP polling for the Cisco Web Security Appliance (WSA), Email Security Appliance (ESA), and Content Security Management Appliance (SMA) could allow an authenticated, remote attacker to discover confidential information about the appliances that should be available only to an administrative user. The vulnerability occurs because the appliances do not protect confidential information at rest in response to Simple Network Management Protocol (SNMP) poll requests. An attacker cou ...

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CVE-2015-4236 1 Cisco 2 Email Security Appliance, Email Security Appliance Firmware 2025-04-12 4.3 MEDIUM N/A
Cisco AsyncOS on Email Security Appliance (ESA) devices with software 8.5.6-073, 8.5.6-074, and 9.0.0-461, when clustering is enabled, allows remote attackers to cause a denial of service (clustering and SSH outage) via a packet flood, aka Bug IDs CSCur13704 and CSCuq05636.
CVE-2016-6358 1 Cisco 1 Email Security Appliance 2025-04-12 5.0 MEDIUM 7.5 HIGH
A vulnerability in local FTP to the Cisco Email Security Appliance (ESA) could allow an unauthenticated, remote attacker to cause a partial denial of service (DoS) condition when the FTP application unexpectedly quits. More Information: CSCux68539. Known Affected Releases: 9.1.0-032 9.7.1-000. Known Fixed Releases: 9.1.1-038.
CVE-2015-6321 1 Cisco 3 Content Security Management Appliance, Email Security Appliance, Web Security Appliance 2025-04-12 7.8 HIGH N/A
Cisco AsyncOS before 8.5.7-042, 9.x before 9.1.0-032, 9.1.x before 9.1.1-023, and 9.5.x and 9.6.x before 9.6.0-042 on Email Security Appliance (ESA) devices; before 9.1.0-032, 9.1.1 before 9.1.1-005, and 9.5.x before 9.5.0-025 on Content Security Management Appliance (SMA) devices; and before 7.7.0-725 and 8.x before 8.0.8-113 on Web Security Appliance (WSA) devices allows remote attackers to cause a denial of service (memory consumption) via a flood of TCP packets, aka Bug IDs CSCus79774, CSCus ...

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CVE-2016-1480 1 Cisco 1 Email Security Appliance 2025-04-12 5.0 MEDIUM 7.5 HIGH
A vulnerability in the Multipurpose Internet Mail Extensions (MIME) scanner of Cisco AsyncOS Software for Cisco Email Security Appliances (ESA) and Web Security Appliances (WSA) could allow an unauthenticated, remote attacker to bypass configured user filters on the device. Affected Products: all releases prior to the first fixed release of Cisco AsyncOS Software for Cisco ESA and Cisco WSA, both virtual and hardware appliances, if the software is configured with message or content filters to sc ...

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CVE-2016-6465 1 Cisco 1 Email Security Appliance 2025-04-12 4.3 MEDIUM 4.3 MEDIUM
A vulnerability in the content filtering functionality of Cisco AsyncOS Software for Cisco Email Security Appliances and Cisco Web Security Appliances could allow an unauthenticated, remote attacker to bypass user filters that are configured for an affected device. Affected Products: This vulnerability affects all releases prior to the first fixed release of Cisco AsyncOS Software for both virtual and hardware versions of the following Cisco products: Cisco Email Security Appliances (ESAs) that ...

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CVE-2016-9202 1 Cisco 1 Email Security Appliance 2025-04-12 4.3 MEDIUM 6.1 MEDIUM
A vulnerability in the web-based management interface of Cisco Email Security Appliance (ESA) Switches could allow an unauthenticated, remote attacker to conduct a persistent cross-site scripting (XSS) attack against a user of the affected interface on an affected device. More Information: CSCvb37346. Known Affected Releases: 9.1.1-036 9.7.1-066.
CVE-2015-4184 1 Cisco 1 Email Security Appliance 2025-04-12 5.0 MEDIUM N/A
The anti-spam scanner on Cisco Email Security Appliance (ESA) devices 3.3.1-09, 7.5.1-gpl-022, and 8.5.6-074 allows remote attackers to bypass intended e-mail restrictions via a malformed DNS SPF record, aka Bug IDs CSCuu35853 and CSCuu37733.
CVE-2016-1411 1 Cisco 3 Content Security Management Appliance, Email Security Appliance, Web Security Appliance 2025-04-12 4.3 MEDIUM 5.9 MEDIUM
A vulnerability in the update functionality of Cisco AsyncOS Software for Cisco Email Security Appliance (ESA), Cisco Web Security Appliance (WSA), and Cisco Content Management Security Appliance (SMA) could allow an unauthenticated, remote attacker to impersonate the update server. More Information: CSCul88715, CSCul94617, CSCul94627. Known Affected Releases: 7.5.2-201 7.6.3-025 8.0.1-023 8.5.0-000 8.5.0-ER1-198 7.5.2-HP2-303 7.7.0-608 7.7.5-835 8.5.1-021 8.8.0-000 7.9.1-102 8.0.0-404 8.1.1-013 ...

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CVE-2015-4288 1 Cisco 3 Content Security Management Appliance, Email Security Appliance, Web Security Appliance 2025-04-12 4.3 MEDIUM N/A
The LDAP implementation on the Cisco Web Security Appliance (WSA) 8.5.0-000, Email Security Appliance (ESA) 8.5.7-042, and Content Security Management Appliance (SMA) 8.3.6-048 does not verify X.509 certificates from SSL servers, which allows man-in-the-middle attackers to spoof servers and obtain sensitive information via a crafted certificate, aka Bug IDs CSCuo29561, CSCuv40466, and CSCuv40470.
CVE-2016-1405 2 Cisco, Clamav 3 Email Security Appliance, Web Security Appliance, Clamav 2025-04-12 5.0 MEDIUM 7.5 HIGH
libclamav in ClamAV (aka Clam AntiVirus), as used in Advanced Malware Protection (AMP) on Cisco Email Security Appliance (ESA) devices before 9.7.0-125 and Web Security Appliance (WSA) devices before 9.0.1-135 and 9.1.x before 9.1.1-041, allows remote attackers to cause a denial of service (AMP process restart) via a crafted document, aka Bug IDs CSCuv78533 and CSCuw60503.
CVE-2016-1461 1 Cisco 2 Asyncos, Email Security Appliance 2025-04-12 5.0 MEDIUM 7.5 HIGH
Cisco AsyncOS on Email Security Appliance (ESA) devices through 9.7.0-125 allows remote attackers to bypass malware detection via a crafted attachment in an e-mail message, aka Bug ID CSCuz14932.
CVE-2015-6309 1 Cisco 2 Email Security Appliance, Email Security Appliance Firmware 2025-04-12 6.8 MEDIUM N/A
Cisco Email Security Appliance (ESA) 8.5.6-106 and 9.6.0-042 allows remote authenticated users to cause a denial of service (file-descriptor consumption and device reload) via crafted HTTP requests, aka Bug ID CSCuw32211.
CVE-2016-6416 1 Cisco 3 Content Security Management Appliance, Email Security Appliance, Web Security Appliance 2025-04-12 4.3 MEDIUM 5.9 MEDIUM
The FTP service in Cisco AsyncOS on Email Security Appliance (ESA) devices 9.6.0-000 through 9.9.6-026, Web Security Appliance (WSA) devices 9.0.0-162 through 9.5.0-444, and Content Security Management Appliance (SMA) devices allows remote attackers to cause a denial of service via a flood of FTP traffic, aka Bug IDs CSCuz82907, CSCuz84330, and CSCuz86065.
CVE-2016-1423 1 Cisco 1 Email Security Appliance 2025-04-12 4.3 MEDIUM 6.1 MEDIUM
A vulnerability in the display of email messages in the Messages in Quarantine (MIQ) view in Cisco AsyncOS for Cisco Email Security Appliance (ESA) could allow an unauthenticated, remote attacker to cause a user to click a malicious link in the MIQ view. The malicious link could be used to facilitate a cross-site scripting (XSS) or HTML injection attack. More Information: CSCuz02235. Known Affected Releases: 8.0.2-069. Known Fixed Releases: 9.1.1-038 9.7.2-047.
CVE-2015-6291 1 Cisco 1 Email Security Appliance 2025-04-12 7.8 HIGH N/A
Cisco AsyncOS before 8.5.7-043, 9.x before 9.1.1-023, and 9.5.x and 9.6.x before 9.6.0-046 on Email Security Appliance (ESA) devices mishandles malformed fields during body-contains, attachment-contains, every-attachment-contains, attachment-binary-contains, dictionary-match, and attachment-dictionary-match filtering, which allows remote attackers to cause a denial of service (memory consumption) via a crafted attachment in an e-mail message, aka Bug ID CSCuv47151.
CVE-2016-6356 1 Cisco 1 Email Security Appliance 2025-04-12 7.8 HIGH 7.5 HIGH
A vulnerability in the email message filtering feature of Cisco AsyncOS Software for Cisco Email Security Appliances could allow an unauthenticated, remote attacker to cause an affected device to stop scanning and forwarding email messages due to a denial of service (DoS) condition. Affected Products: This vulnerability affects all releases prior to the first fixed release of Cisco AsyncOS Software for Cisco Email Security Appliances, both virtual and hardware appliances, if the software is conf ...

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CVE-2016-6357 1 Cisco 1 Email Security Appliance 2025-04-12 5.0 MEDIUM 7.5 HIGH
A vulnerability in the configured security policies, including drop email filtering, in Cisco AsyncOS for Cisco Email Security Appliance (ESA) could allow an unauthenticated, remote attacker to bypass a configured drop filter by using an email with a corrupted attachment. More Information: CSCuz01651. Known Affected Releases: 10.0.9-015 9.7.1-066 9.9.6-026.
CVE-2015-6285 1 Cisco 1 Email Security Appliance 2025-04-12 6.4 MEDIUM N/A
Format string vulnerability in Cisco Email Security Appliance (ESA) 7.6.0 and 8.0.0 allows remote attackers to cause a denial of service (memory overwrite or service outage) via format string specifiers in an HTTP request, aka Bug ID CSCug21497.
CVE-2016-1481 1 Cisco 1 Email Security Appliance 2025-04-12 7.8 HIGH 7.5 HIGH
A vulnerability in the email message filtering feature of Cisco AsyncOS Software for Cisco Email Security Appliances could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device.Affected Products: This vulnerability affects all releases prior to the first fixed release of Cisco AsyncOS Software for Cisco Email Security Appliances, both virtual and hardware appliances, if the software is configured to apply a message filter that contains certa ...

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CVE-2016-6372 1 Cisco 3 Email Security Appliance, Web Security Appliance, Web Security Appliance 8.0.5 2025-04-12 5.0 MEDIUM 7.5 HIGH
A vulnerability in the email message and content filtering for malformed Multipurpose Internet Mail Extensions (MIME) headers of Cisco AsyncOS Software for Cisco Email Security Appliances (ESA) and Web Security Appliances (WSA) could allow an unauthenticated, remote attacker to bypass the filtering functionality of the targeted device. Emails that should have been quarantined could instead be processed. Affected Products: This vulnerability affects all releases prior to the first fixed release o ...

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CVE-2016-1486 1 Cisco 1 Email Security Appliance 2025-04-12 7.8 HIGH 7.5 HIGH
A vulnerability in the email attachment scanning functionality of the Advanced Malware Protection (AMP) feature of Cisco AsyncOS Software for Cisco Email Security Appliances could allow an unauthenticated, remote attacker to cause an affected device to stop scanning and forwarding email messages due to a denial of service (DoS) condition. Affected Products: This vulnerability affects Cisco AsyncOS Software releases 9.7.1 and later, prior to the first fixed release, for both virtual and hardware ...

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CVE-2016-6360 1 Cisco 2 Email Security Appliance, Web Security Appliance 2025-04-12 5.0 MEDIUM 7.5 HIGH
A vulnerability in Advanced Malware Protection (AMP) for Cisco Email Security Appliances (ESA) and Web Security Appliances (WSA) could allow an unauthenticated, remote attacker to cause a partial denial of service (DoS) condition due to the AMP process unexpectedly restarting. Affected Products: Cisco AsyncOS Software for Email Security Appliances (ESA) versions 9.5 and later up to the first fixed release, Cisco AsyncOS Software for Web Security Appliances (WSA) all versions prior to the first f ...

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CVE-2023-20075 1 Cisco 1 Email Security Appliance 2024-11-21 N/A 6.0 MEDIUM
Vulnerability in the CLI of Cisco Secure Email Gateway could allow an authenticated, remote attacker to execute arbitrary commands. These vulnerability is due to improper input validation in the CLI. An attacker could exploit this vulnerability by injecting operating system commands into a legitimate command. A successful exploit could allow the attacker to escape the restricted command prompt and execute arbitrary commands on the underlying operating system. To successfully exploit this vuln ...

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CVE-2023-20009 1 Cisco 2 Email Security Appliance, Secure Email And Web Manager 2024-11-21 N/A 6.5 MEDIUM
A vulnerability in the Web UI and administrative CLI of the Cisco Secure Email Gateway (ESA) and Cisco Secure Email and Web Manager (SMA) could allow an authenticated remote attacker and or authenticated local attacker to escalate their privilege level and gain root access. The attacker has to have a valid user credential with at least a [[privilege of operator - validate actual name]]. The vulnerability is due to the processing of a specially crafted SNMP configuration file. An attacker coul ...

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CVE-2022-20960 1 Cisco 1 Email Security Appliance 2024-11-21 N/A 7.5 HIGH
A vulnerability in Cisco AsyncOS Software for Cisco Email Security Appliance (ESA) could allow an unauthenticated remote attacker to cause a denial of service (DoS) condition on an affected device. This vulnerability is due to improper handling of certain TLS connections that are processed by an affected device. An attacker could exploit this vulnerability by establishing a large number of concurrent TLS connections to an affected device. A successful exploit could allow the attacker to cause ...

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CVE-2022-20798 1 Cisco 2 Email Security Appliance, Secure Email And Web Manager 2024-11-21 6.8 MEDIUM 9.8 CRITICAL
A vulnerability in the external authentication functionality of Cisco Secure Email and Web Manager, formerly known as Cisco Security Management Appliance (SMA), and Cisco Email Security Appliance (ESA) could allow an unauthenticated, remote attacker to bypass authentication and log in to the web management interface of an affected device. This vulnerability is due to improper authentication checks when an affected device uses Lightweight Directory Access Protocol (LDAP) for external authenticati ...

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CVE-2022-20772 1 Cisco 4 Email Security Appliance, Email Security Appliance Firmware, Secure Email And Web Manager and 1 more 2024-11-21 N/A 4.7 MEDIUM
A vulnerability in Cisco Email Security Appliance (ESA) and Cisco Secure Email and Web Manager could allow an unauthenticated, remote attacker to conduct an HTTP response splitting attack. This vulnerability is due to the failure of the application or its environment to properly sanitize input values. An attacker could exploit this vulnerability by injecting malicious HTTP headers, controlling the response body, or splitting the response into multiple responses.
CVE-2022-20675 1 Cisco 4 Asyncos, Email Security Appliance, Secure Email And Web Manager and 1 more 2024-11-21 5.0 MEDIUM 5.3 MEDIUM
A vulnerability in the TCP/IP stack of Cisco Email Security Appliance (ESA), Cisco Web Security Appliance (WSA), and Cisco Secure Email and Web Manager, formerly Security Management Appliance, could allow an unauthenticated, remote attacker to crash the Simple Network Management Protocol (SNMP) service, resulting in a denial of service (DoS) condition. This vulnerability is due to an open port listener on TCP port 199. An attacker could exploit this vulnerability by connecting to TCP port 199. A ...

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CVE-2022-20664 1 Cisco 2 Email Security Appliance, Secure Email And Web Manager 2024-11-21 3.5 LOW 7.7 HIGH
A vulnerability in the web management interface of Cisco Secure Email and Web Manager, formerly Cisco Security Management Appliance (SMA), and Cisco Email Security Appliance (ESA) could allow an authenticated, remote attacker to retrieve sensitive information from a Lightweight Directory Access Protocol (LDAP) external authentication server connected to an affected device. This vulnerability is due to a lack of proper input sanitization while querying the external authentication server. An attac ...

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CVE-2021-1566 1 Cisco 3 Asyncos, Email Security Appliance, Web Security Appliance 2024-11-21 5.8 MEDIUM 7.4 HIGH
A vulnerability in the Cisco Advanced Malware Protection (AMP) for Endpoints integration of Cisco AsyncOS for Cisco Email Security Appliance (ESA) and Cisco Web Security Appliance (WSA) could allow an unauthenticated, remote attacker to intercept traffic between an affected device and the AMP servers. This vulnerability is due to improper certificate validation when an affected device establishes TLS connections. A man-in-the-middle attacker could exploit this vulnerability by sending a crafted ...

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CVE-2021-1516 1 Cisco 5 Asyncos, Content Security Management Appliance, Email Security Appliance and 2 more 2024-11-21 4.0 MEDIUM 4.3 MEDIUM
A vulnerability in the web-based management interface of Cisco AsyncOS Software for Cisco Content Security Management Appliance (SMA), Cisco Email Security Appliance (ESA), and Cisco Web Security Appliance (WSA) could allow an authenticated, remote attacker to access sensitive information on an affected device. The vulnerability exists because confidential information is included in HTTP requests that are exchanged between the user and the device. An attacker could exploit this vulnerability by ...

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CVE-2021-1129 1 Cisco 3 Content Security Management Appliance, Email Security Appliance, Web Security Appliance 2024-11-21 5.0 MEDIUM 5.3 MEDIUM
A vulnerability in the authentication for the general purpose APIs implementation of Cisco Email Security Appliance (ESA), Cisco Content Security Management Appliance (SMA), and Cisco Web Security Appliance (WSA) could allow an unauthenticated, remote attacker to access general system information and certain configuration information from an affected device. The vulnerability exists because a secure authentication token is not required when authenticating to the general purpose API. An attacker ...

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CVE-2020-3547 1 Cisco 4 Asyncos, Content Security Management Appliance, Email Security Appliance and 1 more 2024-11-21 4.0 MEDIUM 4.3 MEDIUM
A vulnerability in the web-based management interface of Cisco AsyncOS software for Cisco Email Security Appliance (ESA), Cisco Content Security Management Appliance (SMA), and Cisco Web Security Appliance (WSA) could allow an authenticated, remote attacker to access sensitive information on an affected device. The vulnerability exists because an insecure method is used to mask certain passwords on the web-based management interface. An attacker could exploit this vulnerability by looking at the ...

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CVE-2020-3546 1 Cisco 2 Asyncos, Email Security Appliance 2024-11-21 5.0 MEDIUM 5.3 MEDIUM
A vulnerability in the web-based management interface of Cisco AsyncOS software for Cisco Email Security Appliance (ESA) could allow an unauthenticated, remote attacker to access sensitive information on an affected device. The vulnerability is due to insufficient validation of requests that are sent to the web-based management interface. An attacker could exploit this vulnerability by sending a crafted request to the interface of an affected device. A successful exploit could allow the attacker ...

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CVE-2020-3447 1 Cisco 2 Content Security Management Appliance, Email Security Appliance 2024-11-21 4.0 MEDIUM 5.5 MEDIUM
A vulnerability in the CLI of Cisco AsyncOS for Cisco Email Security Appliance (ESA) and Cisco AsyncOS for Cisco Content Security Management Appliance (SMA) could allow an authenticated, remote attacker to access sensitive information on an affected device. The vulnerability is due to excessive verbosity in certain log subscriptions. An attacker could exploit this vulnerability by accessing specific log files on an affected device. A successful exploit could allow the attacker to obtain sensitiv ...

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CVE-2020-3370 1 Cisco 1 Email Security Appliance 2024-11-21 5.0 MEDIUM 5.8 MEDIUM
A vulnerability in URL filtering of Cisco Content Security Management Appliance (SMA) could allow an unauthenticated, remote attacker to bypass URL filtering on an affected device. The vulnerability is due to insufficient input validation. An attacker could exploit this vulnerability by sending a crafted, malicious HTTP request to an affected device. A successful exploit could allow the attacker to redirect users to malicious sites.