CVE-2026-26222

CVSS v3 9.8 CRITICAL

9.8^/10

CVSS v3 : CRITICAL

Vector :

Exploitability : 3.9 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

A

ltec DocLink (now maintained by Beyond Limits Inc.) version 4.0.336.0 exposes insecure .NET Remoting endpoints over TCP and HTTP/SOAP via Altec.RDCHostService.exe using the ObjectURI "doclinkServer.soap". The service does not require authentication and is vulnerable to unsafe object unmarshalling, allowing remote attackers to read arbitrary files from the underlying system by specifying local file paths. Additionally, attackers can coerce SMB authentication via UNC paths and write arbitrary files to server locations. Because writable paths may be web-accessible under IIS, this can result in unauthenticated remote code execution or denial of service through file overwrite.

References

Link	Resource
https://doclinkai.com/	Product
https://www.vulncheck.com/advisories/doclink-net-remoting-unauthenticated-arbitrary-file-read-write-rce	Third Party Advisory VDB Entry

Configurations

Configuration 1 (hide)

cpe:2.3:a:beyond:altec_doclink:4.0.336.0:*:*:*:*:*:*:*

History

27 Feb 2026, 20:05

Type	Values Removed	Values Added
First Time		Beyond altec Doclink Beyond
CPE		cpe:2.3:a:beyond:altec_doclink:4.0.336.0:::::::*
CVSS	v2 : ~~unknown~~ v3 : ~~unknown~~	v2 : unknown v3 : 9.8
References	~~() https://doclinkai.com/ -~~	() https://doclinkai.com/ - Product
References	~~() https://www.vulncheck.com/advisories/doclink-net-remoting-unauthenticated-arbitrary-file-read-write-rce -~~	() https://www.vulncheck.com/advisories/doclink-net-remoting-unauthenticated-arbitrary-file-read-write-rce - Third Party Advisory, VDB Entry
CWE		NVD-CWE-noinfo

24 Feb 2026, 18:29

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-02-24 18:29

Updated : 2026-02-27 20:05

NVD link : CVE-2026-26222

Mitre link : CVE-2026-26222

CVE.ORG link : CVE-2026-26222

JSON object : View

Products Affected

altec_doclink

CWE

CWE-502

Deserialization of Untrusted Data

CWE-918

Server-Side Request Forgery (SSRF)

NVD-CWE-noinfo

{"id": "CVE-2026-26222", "cveTags": [], "metrics": {"cvssMetricV31": [{"type": "Primary", "source": "[email protected]", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 9.8, "attackVector": "NETWORK", "baseSeverity": "CRITICAL", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "HIGH"}, "impactScore": 5.9, "exploitabilityScore": 3.9}], "cvssMetricV40": [{"type": "Secondary", "source": "[email protected]", "cvssData": {"Safety": "NOT_DEFINED", "version": "4.0", "Recovery": "NOT_DEFINED", "baseScore": 10.0, "Automatable": "NOT_DEFINED", "attackVector": "NETWORK", "baseSeverity": "CRITICAL", "valueDensity": "NOT_DEFINED", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X", "exploitMaturity": "NOT_DEFINED", "providerUrgency": "NOT_DEFINED", "userInteraction": "NONE", "attackComplexity": "LOW", "attackRequirements": "NONE", "privilegesRequired": "NONE", "subIntegrityImpact": "HIGH", "vulnIntegrityImpact": "HIGH", "integrityRequirement": "NOT_DEFINED", "modifiedAttackVector": "NOT_DEFINED", "subAvailabilityImpact": "HIGH", "vulnAvailabilityImpact": "HIGH", "availabilityRequirement": "NOT_DEFINED", "modifiedUserInteraction": "NOT_DEFINED", "modifiedAttackComplexity": "NOT_DEFINED", "subConfidentialityImpact": "HIGH", "vulnConfidentialityImpact": "HIGH", "confidentialityRequirement": "NOT_DEFINED", "modifiedAttackRequirements": "NOT_DEFINED", "modifiedPrivilegesRequired": "NOT_DEFINED", "modifiedSubIntegrityImpact": "NOT_DEFINED", "modifiedVulnIntegrityImpact": "NOT_DEFINED", "vulnerabilityResponseEffort": "NOT_DEFINED", "modifiedSubAvailabilityImpact": "NOT_DEFINED", "modifiedVulnAvailabilityImpact": "NOT_DEFINED", "modifiedSubConfidentialityImpact": "NOT_DEFINED", "modifiedVulnConfidentialityImpact": "NOT_DEFINED"}}]}, "published": "2026-02-24T18:29:33.293", "references": [{"url": "https://doclinkai.com/", "tags": ["Product"], "source": "[email protected]"}, {"url": "https://www.vulncheck.com/advisories/doclink-net-remoting-unauthenticated-arbitrary-file-read-write-rce", "tags": ["Third Party Advisory", "VDB Entry"], "source": "[email protected]"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Primary", "source": "[email protected]", "description": [{"lang": "en", "value": "CWE-502"}, {"lang": "en", "value": "CWE-918"}]}, {"type": "Primary", "source": "[email protected]", "description": [{"lang": "en", "value": "NVD-CWE-noinfo"}]}], "descriptions": [{"lang": "en", "value": "Altec DocLink (now maintained by Beyond Limits Inc.) version 4.0.336.0 exposes insecure .NET Remoting endpoints over TCP and HTTP/SOAP via Altec.RDCHostService.exe using the ObjectURI \"doclinkServer.soap\". The service does not require authentication and is vulnerable to unsafe object unmarshalling, allowing remote attackers to read arbitrary files from the underlying system by specifying local file paths. Additionally, attackers can coerce SMB authentication via UNC paths and write arbitrary files to server locations. Because writable paths may be web-accessible under IIS, this can result in unauthenticated remote code execution or denial of service through file overwrite."}], "lastModified": "2026-02-27T20:05:06.970", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:beyond:altec_doclink:4.0.336.0:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "115440AE-8BBE-4377-BF90-A2C0A69897D1"}], "operator": "OR"}]}], "sourceIdentifier": "[email protected]"}