CVE-2026-78511
HighCVSS 8.8Summary
Heap-based buffer overflow in Microsoft Office Word allows an unauthorized attacker to execute code over a network.
Risk Assessment
An attacker could remotely overflow a buffer and execute malicious code, potentially leading to full system control.
Recommendation
Install the latest security updates for Microsoft Office Word.
Other vulnerabilities in Microsoft Office Word
See all- CVE-2026-81952High
Heap-based buffer overflow in Microsoft Office Word. Allows an unauthorized attacker to execute code over a network.
- CVE-2026-80085High
Heap-based buffer overflow in Microsoft Office Word allows an unauthorized attacker to execute code over a network.
- CVE-2026-80080High
Double free in Microsoft Office Word allows an unauthorized attacker to execute code over a network.
- CVE-2026-78526High
Heap-based buffer overflow in Microsoft Office Word allows an unauthorized attacker to execute code over a network.
- CVE-2026-78521High
Heap-based buffer overflow in Microsoft Office Word allows an unauthorized attacker to execute code over a network.
- CVE-2026-78517High
Heap-based buffer overflow in Microsoft Office Word allows an unauthorized attacker to execute code over a network.
- CVE-2026-78514High
Use-after-free vulnerability in Microsoft Office Word allows an unauthorized attacker to execute code over a network.
- CVE-2026-78512High
Numeric truncation error in Microsoft Office Word allows an unauthorized attacker to execute code over a network.
- CVE-2026-78507High
Use after free in Microsoft Office Word allows an unauthorized attacker to execute code over a network.
- CVE-2026-78504High
Stack-based buffer overflow in Microsoft Office Word allows an unauthorized attacker to execute code over a network.
Original NVD description (English source)
Heap-based buffer overflow in Microsoft Office Word allows an unauthorized attacker to execute code over a network.