E
xim before 4.99.1, with certain non-default rate-limit configurations, allows a remote heap-based buffer overflow because database records are cast directly to internal structures without validation.
References
| Link | Resource |
|---|---|
| https://exim.org/static/doc/security/ | Vendor Advisory |
| https://exim.org/static/doc/security/EXIM-Security-2025-12-09.1/report.txt | Vendor Advisory |
| https://www.openwall.com/lists/oss-security/2025/12/11/2 | Mailing List |
| http://www.openwall.com/lists/oss-security/2025/12/14/1 | Mailing List |
| http://www.openwall.com/lists/oss-security/2025/12/18/3 | Mailing List |
Configurations
History
22 Dec 2025, 19:15
| Type | Values Removed | Values Added |
|---|---|---|
| CPE | cpe:2.3:a:exim:exim:*:*:*:*:*:*:*:* | |
| First Time |
Exim exim
Exim |
|
| References | () https://exim.org/static/doc/security/ - Vendor Advisory | |
| References | () https://exim.org/static/doc/security/EXIM-Security-2025-12-09.1/report.txt - Vendor Advisory | |
| References | () https://www.openwall.com/lists/oss-security/2025/12/11/2 - Mailing List | |
| References | () http://www.openwall.com/lists/oss-security/2025/12/14/1 - Mailing List | |
| References | () http://www.openwall.com/lists/oss-security/2025/12/18/3 - Mailing List |
18 Dec 2025, 23:15
| Type | Values Removed | Values Added |
|---|---|---|
| New CVE |
Information
Published : 2025-12-14 04:15
Updated : 2025-12-22 19:15
NVD link : CVE-2025-67896
Mitre link : CVE-2025-67896
CVE.ORG link : CVE-2025-67896
JSON object : View
CWE
CWE-122
Heap-based Buffer Overflow