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CVE-2026-78403

Unauthenticated Stack Buffer Overflow in Sentinel Keys Server

Published
Last modified
published
Not listed in CISA KEV
Fix
Fixed in 1.3.8.0
None on Exploit-DB, Metasploit or GitHub
On X
View the cve.now post
  • Exploitation: none
  • Automatable: yes
  • Technical impact: total

Summary

Thales Sentinel Keys Server running on Windows is affected by this flaw, which lets an unauthenticated remote attacker send a specially crafted HTTP request that overflows a memory buffer. Successful exploitation could allow the attacker to run arbitrary code with SYSTEM-level privileges on the affected server.

Summarized by anthropic/claude-haiku-5.5. Verify details against the original sources.

Read the 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.

Timeline

  1. CVE published
  2. First seen by cve.now
  3. Posted on X by cve.now
  4. CISA SSVC assessment

    Exploitation: none · Automatable: yes · Technical impact: total

  5. Record last updated

Affected versions

  • Thalesgroup Sentinel Keys Server

    fixed in 1.3.8.0

References 1

supportportal.thalesgroup.com