CVE-2026-78402

HIGH 7.8CVE-2026-78402 · Published 30/10/2026 · updated 02/11/2026

In short

CVE-2026-78402 is a HIGH (CVSS 7.8) vulnerability.
Chance of exploitation in the next 30 days (EPSS): 0.15%, higher than 4.0% of all vulnerabilities.
No patched version is listed yet: follow the vendor's advisory in References.

Package	Affected versions	Patched versions
—	No affected product versions are listed for this vulnerability yet.

Description

Stack-based buffer overflow and out-of-bounds write vulnerability in Thales Sentinel Keys Server on Windows allows Overflow Buffers. Sentinel Keys Server does not check the length of the first field in the input message. A local attacker may craft an input and send it to Sentinel Keys Server. It may lead to code execution as NT AUTHORITY\SYSTEM enabling local privilege escalation. This issue affects Sentinel Keys Server: versions lower than 1.3.8.0.

References

supportportal.thalesgroup.com/csm

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