Information Disclosure Vulnerability in Microsoft Authenticator
CVE-2026-26123

5.5MEDIUM

Key Information:

Vendor

Microsoft
Status
Microsoft Authenticator For Android
Microsoft Authenticator For iOS
Vendor
CVE Published:
10 March 2026

What is CVE-2026-26123?

An information disclosure vulnerability exists in Microsoft Authenticator, which could allow an unauthorized attacker to obtain sensitive information locally. This flaw may permit malicious actors to exploit the application, posing a risk to user data integrity. Users are advised to review their Authenticator settings and ensure they are on the latest version to mitigate potential threats.

Affected Version(s)

Microsoft Authenticator for Android 6.0.0 < 6.2511.7533

Microsoft Authenticator for IOS 6.0.0 < 6.8.40

References

https://msrc.microsoft.com/update-guide/vulnerability/CVE...
vendor-advisorypatch

CVSS V3.1

Score:
5.5
Severity:
MEDIUM
Confidentiality:
High
Integrity:
None
Availability:
High
Attack Vector:
Local
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
Required
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.