CVE-2026-65769 Microsoft CVE debrief

Who should care

Organizations using Microsoft Teams Mobile should review and apply the necessary updates to prevent potential information disclosure. Security teams and vulnerability management teams should verify affected systems, monitor network traffic for potential information disclosure attempts, and ensure Teams Mobile versions are up-to-date and not vulnerable. IT operators and administrators should also be aware of the vulnerability and take necessary precautions to protect sensitive information.

Technical summary

A vulnerability in Microsoft Teams Mobile allows an unauthorized attacker to disclose information over a network. The issue has a CVSS score of 6.5 and is classified as MEDIUM severity. The vulnerability is related to CWE-200, Exposure of Sensitive Information to an Unauthorized Actor. Affected organizations should review and apply necessary updates to prevent potential information disclosure.

Defensive priority

Medium-priority defensive review recommended due to potential information disclosure over a network.

Recommended defensive actions

• Review and apply vendor advisories for Microsoft Teams Mobile
• Monitor network traffic for potential information disclosure attempts
• Verify Teams Mobile version is up-to-date and not vulnerable

Evidence notes

Evidence from official sources indicates a medium-severity vulnerability in Microsoft Teams Mobile, allowing unauthorized information disclosure. The CVE record and NVD entry provide details. Further review of vendor advisories and network traffic monitoring is recommended to verify affected systems and prevent potential exploitation.

Official resources