CVE-2026-78403
Stack-based buffer overflow and missing authorization vulnerability in Thales Sentinel Keys Server…
- Risk score
- 64/100
- CVSS
- 9.8 v3.1
- Published
- 30 Oct 2026
Open in the live forecast Today's forecast
What to know
- What it is
- A stack-based buffer overflow and missing authorization vulnerability in Thales Sentinel Keys Server on Windows allows an attacker to craft an HTTP request leading to remote code execution as NT AUTHORITY\SYSTEM.
- Affected
- {'products': ['Thales Sentinel Keys Server'], 'packages': [], 'versions': ['lower than 1.3.8.0']}
- Fix
- Upgrade to version 1.3.8.0 or later
- Exploitation
- No known exploitation
Why it is Amber
- CVSS 9.8 critical
- Remotely exploitable without logging in
References
Original description
Stack-based buffer overflow and missing authorization 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 HTTP request. An attacker may craft an HTTP request and send it to Sentinel Keys Server. It may lead to remote code execution as NT AUTHORITY\SYSTEM. This issue affects Sentinel Keys Server: versions lower than 1.3.8.0.
Last activity 30 Oct 2026. Patch Forecast updates every hour.