Microsoft Office Long Term Servicing Channel vulnerabilities

279 known vulnerabilities affecting microsoft/office_long_term_servicing_channel.

Total CVEs
279
CISA KEV
9
actively exploited
Public exploits
9
Exploited in wild
8
Severity breakdown
CRITICAL4HIGH251MEDIUM23LOW1

Vulnerabilities

Page 7 of 14
CVE-2025-29978HIGHCVSS 7.8v20242025-05-13
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.
nvd
CVE-2025-30375HIGHCVSS 7.8v2021v20242025-05-13
CVE-2025-30375 [HIGH] CWE-843 CVE-2025-30375: 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.
nvd
CVE-2025-30388HIGHCVSS 7.8v2021v20242025-05-13
CVE-2025-30388 [HIGH] CWE-122 CVE-2025-30388: Heap-based buffer overflow in Windows Win32K - GRFX allows an unauthorized attacker to execute code Heap-based buffer overflow in Windows Win32K - GRFX allows an unauthorized attacker to execute code locally.
nvd
CVE-2025-32704HIGHCVSS 7.8v2021v20242025-05-13
CVE-2025-32704 [HIGH] CWE-126 CVE-2025-32704: Buffer over-read in Microsoft Office Excel allows an unauthorized attacker to execute code locally. Buffer over-read in Microsoft Office Excel allows an unauthorized attacker to execute code locally.
nvd
CVE-2025-30386HIGHCVSS 7.8v2021v20242025-05-13
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.
nvd
CVE-2025-30381HIGHCVSS 7.8v2021v20242025-05-13
CVE-2025-30381 [HIGH] CWE-125 CVE-2025-30381: 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.
nvd
CVE-2025-30376HIGHCVSS 7.8v2021v20242025-05-13
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.
nvd
CVE-2025-29977HIGHCVSS 7.8v2021v20242025-05-13
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.
nvd
CVE-2025-30393HIGHCVSS 7.8v2021v20242025-05-13
CVE-2025-30393 [HIGH] CWE-416 CVE-2025-30393: 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.
nvd
CVE-2025-29979HIGHCVSS 7.8v2021v20242025-05-13
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.
nvd
CVE-2025-32705HIGHCVSS 7.8v2021v20242025-05-13
CVE-2025-32705 [HIGH] CWE-125 CVE-2025-32705: Out-of-bounds read in Microsoft Office Outlook allows an unauthorized attacker to execute code local Out-of-bounds read in Microsoft Office Outlook allows an unauthorized attacker to execute code locally.
nvd
CVE-2025-29792HIGHCVSS 7.3v2021v20242025-04-08
CVE-2025-29792 [HIGH] CWE-416 CVE-2025-29792: Use after free in Microsoft Office allows an authorized attacker to elevate privileges locally. Use after free in Microsoft Office allows an authorized attacker to elevate privileges locally.
nvd
CVE-2025-29791HIGHCVSS 7.8v2021v20242025-04-08
CVE-2025-29791 [HIGH] CWE-843 CVE-2025-29791: Access of resource using incompatible type ('type confusion') in Microsoft Office allows an unauthor Access of resource using incompatible type ('type confusion') in Microsoft Office allows an unauthorized attacker to execute code locally.
nvd
CVE-2025-27746HIGHCVSS 7.8v2021v20242025-04-08
CVE-2025-27746 [HIGH] CWE-416 CVE-2025-27746: 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.
nvd
CVE-2025-27745HIGHCVSS 7.8v2021v20242025-04-08
CVE-2025-27745 [HIGH] CWE-416 CVE-2025-27745: 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.
nvd
CVE-2025-27747HIGHCVSS 7.8v2021v20242025-04-08
CVE-2025-27747 [HIGH] CWE-822 CVE-2025-27747: 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.
nvd
CVE-2025-27751HIGHCVSS 7.8PoCv2021v20242025-04-08
CVE-2025-27751 [HIGH] CWE-416 CVE-2025-27751: 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.
nvd
CVE-2025-26642HIGHCVSS 7.8v2021v20242025-04-08
CVE-2025-26642 [HIGH] CWE-125 CVE-2025-26642: Out-of-bounds read in Microsoft Office allows an unauthorized attacker to execute code locally. Out-of-bounds read in Microsoft Office allows an unauthorized attacker to execute code locally.
nvd
CVE-2025-29816HIGHCVSS 7.5v2021v20242025-04-08
CVE-2025-29816 [HIGH] CWE-349 CVE-2025-29816: Improper input validation in Microsoft Office Word allows an unauthorized attacker to bypass a secur Improper input validation in Microsoft Office Word allows an unauthorized attacker to bypass a security feature over a network.
nvd
CVE-2025-29822HIGHCVSS 7.8v2021v20242025-04-08
CVE-2025-29822 [HIGH] CWE-184 CVE-2025-29822: Incomplete list of disallowed inputs in Microsoft Office OneNote allows an unauthorized attacker to Incomplete list of disallowed inputs in Microsoft Office OneNote allows an unauthorized attacker to bypass a security feature locally.
nvd