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Local privilege escalation in SafeNet Authentication Client SACSrv

Priority LOW 33CWE-122Published · Updated

Key facts

Attack vector
Local
Privileges required
Low
User interaction
None
Attack complexity
High
Attack requirements
Present
Impact type
Code execution
Confidentiality · integrity · availability
High · High · High
Fix status
No fix listed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-122 and the CVSS impact.

Summary

Thales SafeNet Authentication Client (SAC) SACSrv releases up to and including 10.9 R3 GA (build 10.9.7449) contain a heap-based buffer overflow (CWE-122) reachable through the service interface. An authenticated, non-administrator local user can trigger the overflow to escalate privileges. Successful exploitation may allow arbitrary code execution with Local System privileges.

Written with Claude Haiku 5.5 from the sources below · 2026-11-06

Description from the CNA

A local privilege escalation vulnerability in Thales SafeNet Authentication Client (SAC) SACSrv can allow an authenticated, non-administrator local user to trigger a heap-based buffer overflow through the service interface. Successful exploitation may allow arbitrary code execution with Local System privileges.This issue affects SAC releases up to and including 10.9 R3 GA (build 10.9.7449).

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00135 3rd percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
ThalesSafenet Authentication Client Serviceup to 10.9.7449—No fix listedCNA
  • Safenet Authentication Client Service VendorThales Affected up to 10.9.7449 Fixed in — No fix listed CNA

Remediation

The sources list no fixed version for Safenet Authentication Client Service.

Written with Claude Haiku 5.5 from the sources below · 2026-11-06

Vendor assessments

Red Hat

Red Hat's page for this CVE →

Not affected: 1 product
  • Red Hat

Timeline

  1. 2026-11-05 Threatist record created from CVE-2026-112109
  2. 2026-11-05 Alias added: GHSA-gr7c-6vfv-4h8v
  3. 2026-11-05 CVSS score added · CISA ADP
  4. 2026-11-05 CISA SSVC decision points changed
  5. 2026-11-05 Priority changed: MEDIUM → LOW
  6. 2026-11-06 Affected versions changed · Red Hat
  7. 2026-11-06 CVSS score added · Red Hat

References

  • TI-2021-12537 The Sentinel LDK Run-Time Environment installer (Versions 7.6 and prior) adds a firewall… CVSS 3.1CRITICAL 9.8
  • TI-2026-15119 SConnect: Native Host Unauthenticated Remote Code Execution Vulnerability CVSS 4.0CRITICAL 9.4
  • TI-2026-83334 Unauthenticated Stack Buffer Overflow in Sentinel Keys Server CVSS 4.0CRITICAL 9.3
  • TI-2026-05969 Vulnerability on Cryptobox external sharing feature CVSS 4.0MEDIUM 6.9
  • TI-2024-00179 Privilege Escalation in Thales SafeNet Sentinel HASP LDK CVSS 3.1HIGH 7.8
  • TI-2023-06413 Privilege Escalation in SafeNet Authentication Client CVSS 3.1HIGH 7.8
See all 24 →

Sources