CVE-2026-26222
DocLink .NET Remoting Unauthenticated Arbitrary File Read/Write RCE
Vexday Risk Score
28Low
SSVC decision (CISA)
Track
No exploitation signal → monitor
CVSS 10EPSS 0.7%KEV nãoPoC —Nuclei —Metasploit —Patch —
Lifecycle
24 Feb 2026Published on NVD
Recommendation: Monitor — no exploitation signal at the moment.
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.
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
Affected products
Beyond Limits Inc. · Altec DocLinkWant to know if your infrastructure is exposed to this?
Talk to TrueHacking →