SB2026081336 - Security features bypass in Microsoft CoPilot Chat
Published: August 13, 2026
Security Bulletin ID
SB2026081336
CSH Severity
High
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Security features bypass (CVE-ID: CVE-2026-65675)
CWE-ID: CWE-254 - Security Features
CVSSv4: 7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:H/VA:L/SC:N/SI:N/SA:N]
The vulnerability allows a remote attacker to compromise the target system.
The vulnerability exists due to security features bypass in CoPilot Chat. A remote attacker can bypass a security feature on the system.
Remediation
Install update from vendor's website.