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PatchSiren cyber security CVE debrief

CVE-2026-65769 Microsoft CVE debrief

AI-assisted PatchSiren debrief based on the supplied source corpus. The CVE record was published on 2026-08-11T17:18:56.240Z and has not been modified since then. This vulnerability, CVE-2026-65769, is related to Exposure of sensitive information to an unauthorized actor in Microsoft Teams Mobile, allowing an unauthorized attacker to disclose information over a network. The issue has a CVSS score of 6.5 and is classified as MEDIUM severity. It is associated with CWE-200, Exposure of Sensitive Information to an Unauthorized Actor. Organizations using Microsoft Teams Mobile should review and apply necessary updates to prevent potential information disclosure. The CVE record and NVD entry provide details on this vulnerability.

Vendor
Microsoft
Product
Microsoft Teams for iOS
CVSS
MEDIUM 6.5
CISA KEV
Not listed in stored evidence
Original CVE published
2026-08-11
Original CVE updated
2026-08-16
Advisory published
2026-08-11
Advisory updated
2026-08-16

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.

Sources and references

Verified primary and authoritative sources

  • CVE-2026-65769 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-65769

    CVE Program - Official CVE Program record with source-provided CVE metadata.

  • CVE-2026-65769 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-65769

    NIST National Vulnerability Database - Official NIST NVD detail page and source-specific vulnerability assessment.

Supplemental references

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.