Microsoft Office Long Term Servicing Channel vulnerabilities

CVE-2026-20946 [HIGH] CWE-125 CVE-2026-20946: Out-of-bounds read in Microsoft Office Excel allows an unauthorized attacker to execute code locally Out-of-bounds read in Microsoft Office Excel allows an unauthorized attacker to execute code locally.

CVE-2025-24082 [HIGH] CWE-416 CVE-2025-24082: Use after free in Microsoft Office Excel allows an unauthorized attacker to execute code locally. Use after free in Microsoft Office Excel allows an unauthorized attacker to execute code locally.

CVE-2025-24080 [HIGH] CWE-416 CVE-2025-24080: Use after free in Microsoft Office allows an unauthorized attacker to execute code locally. Use after free in Microsoft Office allows an unauthorized attacker to execute code locally.

CVE-2025-24081 [HIGH] CWE-416 CVE-2025-24081: Use after free in Microsoft Office Excel allows an unauthorized attacker to execute code locally. Use after free in Microsoft Office Excel allows an unauthorized attacker to execute code locally.

CVE-2025-24079 [HIGH] CWE-416 CVE-2025-24079: Use after free in Microsoft Office Word allows an unauthorized attacker to execute code locally. Use after free in Microsoft Office Word allows an unauthorized attacker to execute code locally.

CVE-2025-60727 [HIGH] CWE-125 CVE-2025-60727: Out-of-bounds read in Microsoft Office Excel allows an unauthorized attacker to execute code locally Out-of-bounds read in Microsoft Office Excel allows an unauthorized attacker to execute code locally.

CVE-2026-20955 [HIGH] CWE-822 CVE-2026-20955: Untrusted pointer dereference in Microsoft Office Excel allows an unauthorized attacker to execute c Untrusted pointer dereference in Microsoft Office Excel allows an unauthorized attacker to execute code locally.

CVE-2025-29979 [HIGH] CWE-122 CVE-2025-29979: Heap-based buffer overflow in Microsoft Office Excel allows an unauthorized attacker to execute code Heap-based buffer overflow in Microsoft Office Excel allows an unauthorized attacker to execute code locally.

CVE-2025-29977 [HIGH] CWE-416 CVE-2025-29977: Use after free in Microsoft Office Excel allows an unauthorized attacker to execute code locally. Use after free in Microsoft Office Excel allows an unauthorized attacker to execute code locally.

CVE-2025-30386 [HIGH] CWE-416 CVE-2025-30386: Use after free in Microsoft Office allows an unauthorized attacker to execute code locally. Use after free in Microsoft Office allows an unauthorized attacker to execute code locally.

CVE-2025-24077 [HIGH] CWE-416 CVE-2025-24077: Use after free in Microsoft Office Word allows an unauthorized attacker to execute code locally. Use after free in Microsoft Office Word allows an unauthorized attacker to execute code locally.

CVE-2025-47168 [HIGH] CWE-416 CVE-2025-47168: Use after free in Microsoft Office Word allows an unauthorized attacker to execute code locally. Use after free in Microsoft Office Word allows an unauthorized attacker to execute code locally.

CVE-2025-26629 [HIGH] CWE-416 CVE-2025-26629: Use after free in Microsoft Office allows an unauthorized attacker to execute code locally. Use after free in Microsoft Office allows an unauthorized attacker to execute code locally.

CVE-2025-54899 [HIGH] CWE-590 CVE-2025-54899: Free of memory not on the heap in Microsoft Office Excel allows an unauthorized attacker to execute Free of memory not on the heap in Microsoft Office Excel allows an unauthorized attacker to execute code locally.

CVE-2025-49698 [HIGH] CWE-416 CVE-2025-49698: Use after free in Microsoft Office Word allows an unauthorized attacker to execute code locally. Use after free in Microsoft Office Word allows an unauthorized attacker to execute code locally.

CVE-2025-30376 [HIGH] CWE-122 CVE-2025-30376: Heap-based buffer overflow in Microsoft Office Excel allows an unauthorized attacker to execute code Heap-based buffer overflow in Microsoft Office Excel allows an unauthorized attacker to execute code locally.

CVE-2025-59231 [HIGH] CWE-843 CVE-2025-59231: Access of resource using incompatible type ('type confusion') in Microsoft Office Excel allows an un Access of resource using incompatible type ('type confusion') in Microsoft Office Excel allows an unauthorized attacker to execute code locally.

CVE-2025-59233 [HIGH] CWE-843 CVE-2025-59233: Access of resource using incompatible type ('type confusion') in Microsoft Office Excel allows an un Access of resource using incompatible type ('type confusion') in Microsoft Office Excel allows an unauthorized attacker to execute code locally.

CVE-2025-29978 [HIGH] CWE-416 CVE-2025-29978: Use after free in Microsoft Office PowerPoint allows an unauthorized attacker to execute code locall Use after free in Microsoft Office PowerPoint allows an unauthorized attacker to execute code locally.

CVE-2025-49711 [HIGH] CWE-416 CVE-2025-49711: Use after free in Microsoft Office Excel allows an unauthorized attacker to execute code locally. Use after free in Microsoft Office Excel allows an unauthorized attacker to execute code locally.