Microsoft Office Long Term Servicing Channel vulnerabilities

CVE-2025-59221 [HIGH] CWE-416 CVE-2025-59221: 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-2025-59223 [HIGH] CWE-416 CVE-2025-59223: 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-2025-59233 [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-2025-59229 [MEDIUM] CWE-248 CVE-2025-59229: Uncaught exception in Microsoft Office allows an unauthorized attacker to deny service locally. Uncaught exception in Microsoft Office allows an unauthorized attacker to deny service 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-2025-54904 [HIGH] CWE-416 CVE-2025-54904: 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-2025-54896 [HIGH] CWE-416 CVE-2025-54896: 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-2025-54902 [HIGH] CWE-125 CVE-2025-54902: 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-2025-54903 [HIGH] CWE-416 CVE-2025-54903: 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-2025-54908 [HIGH] CWE-416 CVE-2025-54908: 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-2025-54905 [HIGH] CWE-822 CVE-2025-54905: Untrusted pointer dereference in Microsoft Office Word allows an unauthorized attacker to disclose i Untrusted pointer dereference in Microsoft Office Word allows an unauthorized attacker to disclose information locally.

CVE-2025-54898 [HIGH] CWE-125 CVE-2025-54898: 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-2025-54910 [HIGH] CWE-122 CVE-2025-54910: Heap-based buffer overflow in Microsoft Office allows an unauthorized attacker to execute code local Heap-based buffer overflow in Microsoft Office allows an unauthorized attacker to execute code locally.

CVE-2025-54907 [HIGH] CWE-122 CVE-2025-54907: Heap-based buffer overflow in Microsoft Office Visio allows an unauthorized attacker to execute code Heap-based buffer overflow in Microsoft Office Visio allows an unauthorized attacker to execute code locally.

CVE-2025-54906 [HIGH] CWE-416 CVE-2025-54906: Free of memory not on the heap in Microsoft Office allows an unauthorized attacker to execute code l Free of memory not on the heap in Microsoft Office allows an unauthorized attacker to execute code locally.

CVE-2025-54900 [HIGH] CWE-122 CVE-2025-54900: 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-2025-54901 [MEDIUM] CWE-126 CVE-2025-54901: Buffer over-read in Microsoft Office Excel allows an unauthorized attacker to disclose information l Buffer over-read in Microsoft Office Excel allows an unauthorized attacker to disclose information locally.

CVE-2025-53734 [HIGH] CWE-416 CVE-2025-53734: Use after free in Microsoft Office Visio allows an unauthorized attacker to execute code locally. Use after free in Microsoft Office Visio allows an unauthorized attacker to execute code locally.

CVE-2025-53759 [HIGH] CWE-908 CVE-2025-53759: Use of uninitialized resource in Microsoft Office Excel allows an unauthorized attacker to execute c Use of uninitialized resource in Microsoft Office Excel allows an unauthorized attacker to execute code locally.

CVE-2025-53739 [HIGH] CWE-843 CVE-2025-53739: 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.