What is CVE-2026-26123?

CVE-2026-26123 is a medium-severity vulnerability in Microsoft Authenticator For Android, classified under CWE-939. CVSS score: 5.5/10. Published 2026-03-10.

How severe is CVE-2026-26123?

Medium severity. CVSS v3 base score is 5.5 out of 10.

Vulnerability in Microsoft Authenticator For Android

CVE-2026-26123

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

EPSS: 0.001 (16.3th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C.

Affected products

Microsoft Authenticator For Android — versions 6.0.0
Microsoft Authenticator For Ios — versions 6.0.0

Weakness classification (CWE)

CWE-939

References

Microsoft Authenticator Information Disclosure Vulnerability (vendor-advisory, patch)

Frequently asked questions

What is CVE-2026-26123?: CVE-2026-26123 is a medium-severity vulnerability in Microsoft Authenticator For Android, classified under CWE-939. CVSS score: 5.5/10. Published 2026-03-10.
How severe is CVE-2026-26123?: Medium severity. CVSS v3 base score is 5.5 out of 10.