CVE-2026-112109: A local privilege escalation vulnerability in Thales SafeNet Authentication Client (SAC) SACSrv can allow an a

Q: How do I fix CVE-2026-112109?

safenet authentication client service: upgrade to newer than 10.9.7449. Exact commands for each OS are on this page.

Q: Is CVE-2026-112109 being exploited?

CVE-2026-112109 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2026-112109 affect?

CVE-2026-112109 affects safenet authentication client service. Severity is high (CVSS 7.3). 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 explo

Routine

HIGH 7.3UPGRADE

CVE-2026-112109 is a high-severity flaw (CVSS 7.3) affecting safenet authentication client service. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

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 this priority

High severity

A fixed release or distro patch exists.

Risk facts

CVSS score	7.3 (High)
EPSS exploit chance	n/a
CISA exploited list	No
Weakness	CWE-122, CWE-190
Published	2026-11-05
Last modified	2026-11-05

Publisher (CNA): THA-PSIRT · Vendor: thalesgroup · Source: CVE Program record (NVD analysis pending)

Last updated 2026-11-05 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2026-11-05 17:20 UTCPublished CVE record published
2026-11-05 17:20 UTCUpdated Record last modified

thalesgroup safenet authentication client service UPGRADE

Affected: <= 10.9.7449

Fixed in: newer than 10.9.7449

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy safenet-authentication-client-service || rpm -q safenet-authentication-client-service || safenet-authentication-client-service --version

2. UPGRADE to newer than 10.9.7449 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade safenet-authentication-client-service

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade safenet-authentication-client-service

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2026-112109?

safenet authentication client service: upgrade to newer than 10.9.7449. Exact commands for each OS are on this page.

Is CVE-2026-112109 being exploited?

CVE-2026-112109 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2026-112109 affect?

CVE-2026-112109 affects safenet authentication client service. Severity is high (CVSS 7.3). 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 explo

How urgent is CVE-2026-112109?

Priority 26/100. High severity

References

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