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CVE-2026-94395Stack-based buffer overflow in SafeNet Authentication Client SIS token engine
A stack-based buffer overflow in Thales SafeNet Authentication Client (SAC) SIS token engine processing can be triggered by a malicious physical or software-emulated smart card. The issue can occur before authentication or PIN entry and may cause a denial of service or potentially arbitrary code execution with the privileges of the affected process. Affected releases start with SAC 10.8 R7 and include SAC 10.9 R3 GA (build 10.9.7449).
7.0 HIGHEPSS 0.25%Not in KEVNVD: Awaiting Analysis
Overview
Severity
| Score | Severity | Version | Vector String |
|---|---|---|---|
| 7.0 | HIGH | 4.0THA-PSIRT (CNA) | CVSS:4.0/AV:P/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N |
| 6.8 | MEDIUM | 3.1CISA-ADP | CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
Details
- CVE ID
- CVE-2026-94395
- Status
- Awaiting Analysis
- Assigner (CNA)
- THA-PSIRT
- Published
- Nov 5, 2026
- Last modified
- 2026-11-06 21:33 UTC
Affected Products
As published by the CNA in the CVE record.
ThalesgroupSafenet Authentication Client SIS token engine1 version range
- 10.8 R7 through 10.9 R3 (build 10.9.7449)