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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.

PUBLISHED Reserved 2026-02-11 | Published 2026-02-24 | Updated 2026-02-24 | Assigner VulnCheck




CRITICAL: 10.0CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H

Problem types

CWE-502 Deserialization of Untrusted Data

CWE-918 Server-Side Request Forgery (SSRF)

Product status

Default status
unknown

4.0.336.0
affected

Credits

Victor A. Morales, Senior Pentester Team Leader, GM Sectec, Corp finder

Omar Crespo, Pentester, GM Sectec, Corp finder

References

doclinkai.com/ product

www.vulncheck.com/...enticated-arbitrary-file-read-write-rce third-party-advisory

cve.org (CVE-2026-26222)

nvd.nist.gov (CVE-2026-26222)

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