CVE-2026-65657
HighCVSS 7.8Exploitation Probability (EPSS)
Low risk37th percentile - higher than 37% of all known CVEs
Summary
Use after free in Microsoft Office allows an unauthorized attacker to execute code locally.
Risk Assessment
An unauthorized attacker can exploit this vulnerability to execute arbitrary code on the victim's machine, potentially leading to system takeover.
Recommendation
Update Microsoft Office to the latest version with security patches.
Other vulnerabilities in Microsoft Office
See all- CVE-2026-88197High
Heap-based buffer overflow in Microsoft Office allows an unauthorized attacker to execute code over a network. The issue stems from improper memory management during data processing.
- CVE-2026-88196High
Heap-based buffer overflow in Microsoft Office allows an unauthorized attacker to execute code over a network. The issue stems from improper memory management during data processing.
- CVE-2026-42832High
Improper access control in Microsoft Office allows an unauthorized attacker to perform spoofing locally.
- CVE-2026-42831High
Heap-based buffer overflow in Microsoft Office allows an unauthorized attacker to execute code locally.
- CVE-2026-40419High
A use after free vulnerability in Microsoft Office allows an authorized attacker to locally elevate privileges.
- CVE-2026-40363High
Heap-based buffer overflow in Microsoft Office allows an unauthorized attacker to execute code locally.
- CVE-2026-26134High
Integer overflow or wraparound in Microsoft Office allows an authorized attacker to elevate privileges locally.
- CVE-2026-26110High
Microsoft Office has a vulnerability related to resource access using an incompatible type ('type confusion'), allowing an unauthorized attacker to execute code locally.
- CVE-2026-20953High
Use after free in Microsoft Office allows an unauthorized attacker to execute code locally.
- CVE-2026-20952High
Use after free in Microsoft Office allows an unauthorized attacker to execute code locally.
Original NVD description (English source)
Use after free in Microsoft Office allows an unauthorized attacker to execute code locally.
Vulnerability data from NVD (NIST) · CISA KEV · EPSS