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CVE-2026-112109— Local privilege escalation in SafeNet Authentication Client SACSrv

Quick assessment

Affected

Thalesgroup Safenet Authentication Client Service

Exploitation

No confirmed in-the-wild exploitation; assess based on exposure

Recommended action

Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Thales SafeNet 身份认证客户端（SAC）中的 SACSrv 组件存在一个本地权限提升漏洞。该漏洞允许已认证的非管理员本地用户通过服务接口触发堆缓冲区溢出。成功利用此漏洞可能导致攻击者以本地系统（Local System）权限执行任意代码。此问题影响 SafeNet 身份认证客户端（SAC）10.9 R3 GA（构建版本 10.9.7449）及之前发布的所有版本。

CVSS 7.3 · High Updated Nov 06, 2026

Possible ATT&CK Techniques 1 AI

T1203 · Exploitation for Client Execution

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Vulnerability Information

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Vulnerability Title

Local privilege escalation in SafeNet Authentication Client SACSrv

Source: CVE Program / CVE List V5

Vulnerability Description

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).

Source: CVE Program / CVE List V5

CVSS Information

CVSS:4.0/AV:L/AC:H/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

Source: CVE Program / CVE List V5

Vulnerability Type

堆缓冲区溢出

Source: CVE Program / CVE List V5

Affected Products

Vendor	Product	Affected Versions	CPE	Subscribe
Thalesgroup	Safenet Authentication Client Service	0 ~ 10.9.7449	-

II. Public POCs for CVE-2026-112109

#	POC Description	Source Link	Shenlong Link

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No public POC found.

III. Intelligence Information for CVE-2026-112109

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Other References for CVE-2026-112109 (1)

https://supportportal.thalesgroup.com/csm?id=kb_article_view&sys_kb_id=89d3c2ce2b105350cdc1f87df291bf55&sysparm_article=KB0031248 vendor-advisory

https://www.cve.org/CVERecord?id=CVE-2026-112109

Same Patch Batch · Thalesgroup · 2026-11-05 · 3 CVEs total

CVE-2026-94395	7.0 HIGH	Stack-based buffer overflow in SafeNet Authentication Client SIS token engine
CVE-2026-112110	5.8 MEDIUM	Privileged file deletion in SafeNet Authentication Client SACSrv

IV. Related Vulnerabilities

Same product: Safenet Authentication Client Service

CVE-2026-112110
Privileged file deletion in SafeNet Authentication Client SA

Same vendor: Thalesgroup

Same weakness: CWE-122