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CVE-2026-26222

CRITICAL
10.0
CVSS 4.0
Description
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.

Metadata

CVE ID
CVE-2026-26222
State
PUBLISHED
Assigner
VulnCheck
Reserved
2026-02-11 20:08 UTC
Published
2026-02-24 17:33 UTC
Last updated
2026-02-27 20:53 UTC
Primary CWE
CWE-502
CWE-502 Deserialization of Untrusted Data
Vendor / Product
Beyond Limits Inc. / Altec DocLink
Sources
cve.org  ·  NVD

Severity & Metrics

10.0 CRITICAL CVSS 4.0
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
SSVC — CISA Coordinator
Exploitation
none
Automatable
yes
Tech. Impact
total
Affected products (1)
VendorProductPlatformVersions
Beyond Limits Inc. Altec DocLink — 4.0.336.0
Weakness (CWE)
CWESourceDescription
CWE-502 cna CWE-502 Deserialization of Untrusted Data
CWE-918 cna CWE-918 Server-Side Request Forgery (SSRF)
CVSS scores (1)
ScoreSeverityVersionSourceVector
10.0 CRITICAL 4.0 cna 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
References (2)
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