🛡️ CVE-2026-26123 — authenticator

🟡 CVSS 5.5 — Medium ✅ No Known Exploit CWE-939 NVD
5.5
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

Cwe is not in rca categories in Microsoft Authenticator allows an unauthorized attacker to disclose information locally.

How this vulnerability can be exploited

This issue can be reached with local access to the system, attack complexity is low, an attacker needs no privileges on the target. A user must be tricked into taking some action. The scope is unchanged, so the impact stays within the vulnerable component. Rated impact: confidentiality high, integrity none, availability none.

Affected software

CVE-2026-26123 is recorded against 1 package.

  • authenticator (fixed in 6.2511.7533)

Timeline and source

Published on 10 March 2026 and last revised on 17 June 2026. No public exploit is currently recorded for this entry. Record sourced from NVD.

References

msrc.microsoft.com

Details

Severity MEDIUM
CVSS Score 5.5
CVSS Vector CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
CWE CWE-939
Public Exploit ✅ No
Source NVD
Published 2026-03-10
Updated 2026-08-11
Modified 2026-06-17
Fix URL N/A

Affected Packages

Software From version Fixed in
authenticator — 6.2511.7533

Similar Threats

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