Microsoft Office Ltsc 2021 vulnerabilities

316 known vulnerabilities affecting microsoft/microsoft_office_ltsc_2021.

Total CVEs
316
CISA KEV
9
actively exploited
Public exploits
9
Exploited in wild
8
Severity breakdown
CRITICAL4HIGH268MEDIUM43LOW1

Vulnerabilities

Page 8 of 16
CVE-2025-27747HIGHCVSS 7.8≥ 16.0.1, < https://aka.ms/OfficeSecurityReleases2025-04-08
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.
cvelistv5nvd
CVE-2025-27751HIGHCVSS 7.8PoC≥ 16.0.1, < https://aka.ms/OfficeSecurityReleases2025-04-08
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.
cvelistv5nvd
CVE-2025-29816HIGHCVSS 7.5≥ 16.0.1, < https://aka.ms/OfficeSecurityReleases2025-04-08
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.
cvelistv5nvd
CVE-2025-29822HIGHCVSS 7.8≥ 16.0.1, < https://aka.ms/OfficeSecurityReleases2025-04-08
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.
cvelistv5nvd
CVE-2025-27750HIGHCVSS 7.8≥ 16.0.1, < https://aka.ms/OfficeSecurityReleases2025-04-08
CVE-2025-27750 [HIGH] CWE-416 CVE-2025-27750: 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.
cvelistv5nvd
CVE-2025-27752HIGHCVSS 7.8≥ 16.0.1, < https://aka.ms/OfficeSecurityReleases2025-04-08
CVE-2025-27752 [HIGH] CWE-122 CVE-2025-27752: 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.
cvelistv5nvd
CVE-2025-29820HIGHCVSS 7.8≥ 16.0.1, < https://aka.ms/OfficeSecurityReleases2025-04-08
CVE-2025-29820 [HIGH] CWE-416 CVE-2025-29820: 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.
cvelistv5nvd
CVE-2025-24078HIGHCVSS 7.0≥ 16.0.1, < https://aka.ms/OfficeSecurityReleases2025-03-11
CVE-2025-24078 [HIGH] CWE-416 CVE-2025-24078: 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.
cvelistv5nvd
CVE-2025-24075HIGHCVSS 7.8≥ 16.0.1, < https://aka.ms/OfficeSecurityReleases2025-03-11
CVE-2025-24075 [HIGH] CWE-121 CVE-2025-24075: Stack-based buffer overflow in Microsoft Office Excel allows an unauthorized attacker to execute cod Stack-based buffer overflow in Microsoft Office Excel allows an unauthorized attacker to execute code locally.
cvelistv5nvd
CVE-2025-24080HIGHCVSS 7.8≥ 16.0.1, < https://aka.ms/OfficeSecurityReleases2025-03-11
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.
cvelistv5nvd
CVE-2025-24083HIGHCVSS 7.8≥ 16.0.1, < https://aka.ms/OfficeSecurityReleases2025-03-11
CVE-2025-24083 [HIGH] CWE-822 CVE-2025-24083: Untrusted pointer dereference in Microsoft Office allows an unauthorized attacker to execute code lo Untrusted pointer dereference in Microsoft Office allows an unauthorized attacker to execute code locally.
cvelistv5nvd
CVE-2025-24057HIGHCVSS 7.8≥ 16.0.1, < https://aka.ms/OfficeSecurityReleases2025-03-11
CVE-2025-24057 [HIGH] CWE-122 CVE-2025-24057: 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.
cvelistv5nvd
CVE-2025-24081HIGHCVSS 7.8≥ 16.0.1, < https://aka.ms/OfficeSecurityReleases2025-03-11
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.
cvelistv5nvd
CVE-2025-24079HIGHCVSS 7.8≥ 16.0.1, < https://aka.ms/OfficeSecurityReleases2025-03-11
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.
cvelistv5nvd
CVE-2025-26630HIGHCVSS 7.8≥ 16.0.1, < https://aka.ms/OfficeSecurityReleases2025-03-11
CVE-2025-26630 [HIGH] CWE-416 CVE-2025-26630: Use after free in Microsoft Office Access allows an unauthorized attacker to execute code locally. Use after free in Microsoft Office Access allows an unauthorized attacker to execute code locally.
cvelistv5nvd
CVE-2025-24082HIGHCVSS 7.8≥ 16.0.1, < https://aka.ms/OfficeSecurityReleases2025-03-11
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.
cvelistv5nvd
CVE-2025-21381HIGHCVSS 7.8≥ 16.0.1, < https://aka.ms/OfficeSecurityReleases2025-02-11
CVE-2025-21381 [HIGH] CWE-822 CVE-2025-21381: Microsoft Excel Remote Code Execution Vulnerability Microsoft Excel Remote Code Execution Vulnerability
cvelistv5nvd
CVE-2025-21397HIGHCVSS 7.8≥ 16.0.1, < https://aka.ms/OfficeSecurityReleases2025-02-11
CVE-2025-21397 [HIGH] CWE-416 CVE-2025-21397: Microsoft Office Remote Code Execution Vulnerability Microsoft Office Remote Code Execution Vulnerability
cvelistv5nvd
CVE-2025-21392HIGHCVSS 7.8≥ 16.0.1, < https://aka.ms/OfficeSecurityReleases2025-02-11
CVE-2025-21392 [HIGH] CWE-416 CVE-2025-21392: Microsoft Office Remote Code Execution Vulnerability Microsoft Office Remote Code Execution Vulnerability
cvelistv5nvd
CVE-2025-21387HIGHCVSS 7.8≥ 16.0.1, < https://aka.ms/OfficeSecurityReleases2025-02-11
CVE-2025-21387 [HIGH] CWE-416 CVE-2025-21387: Microsoft Excel Remote Code Execution Vulnerability Microsoft Excel Remote Code Execution Vulnerability
cvelistv5nvd