cbcvebase.

Microsoft Office Ltsc 2021 vulnerabilities

781 known vulnerabilities affecting microsoft/microsoft_office_ltsc_2021.

Total CVEs
781
CISA KEV
9
actively exploited
Public exploits
13
Exploited in wild
12
Severity breakdown
CRITICAL13HIGH581MEDIUM179LOW8

Vulnerabilities

Page 8 of 40
CVE-2026-69632P3HIGHCVSS 8.8≥ 16.0.1, < 16.0.14334.209062026-09-08
CVE-2026-69632 [HIGH] CWE-416 CVE-2026-69632: Use after free in Microsoft Office allows an unauthorized attacker to execute code over a network. Use after free in Microsoft Office allows an unauthorized attacker to execute code over a network.
nvd
CVE-2026-69742P3HIGHCVSS 8.8≥ 16.0.1, < 16.0.14334.209062026-09-08
CVE-2026-69742 [HIGH] CWE-190 CVE-2026-69742: Integer overflow or wraparound in Microsoft Office Publisher allows an unauthorized attacker to exec Integer overflow or wraparound in Microsoft Office Publisher allows an unauthorized attacker to execute code over a network.
nvd
CVE-2026-78524P3HIGHCVSS 8.8≥ 16.0.1, < 16.0.14334.209062026-09-08
CVE-2026-78524 [HIGH] CWE-787 CVE-2026-78524: Out-of-bounds write in Microsoft Office allows an unauthorized attacker to execute code over a netwo Out-of-bounds write in Microsoft Office allows an unauthorized attacker to execute code over a network.
nvd
CVE-2026-70329P3HIGHCVSS 8.8≥ 16.0.1, < https://aka.ms/OfficeSecurityReleases2026-08-11
CVE-2026-70329 [HIGH] CWE-190 CVE-2026-70329: Integer overflow or wraparound in Microsoft Office Outlook allows an unauthorized attacker to execut Integer overflow or wraparound in Microsoft Office Outlook allows an unauthorized attacker to execute code over a network.
nvd
CVE-2026-62870P3HIGHCVSS 8.8≥ 16.0.1, < https://aka.ms/OfficeSecurityReleases2026-08-04
CVE-2026-62870 [HIGH] CWE-416 CVE-2026-62870: Use after free in Microsoft Office Excel allows an unauthorized attacker to execute code over a netw Use after free in Microsoft Office Excel allows an unauthorized attacker to execute code over a network.
nvd
CVE-2026-88150P3HIGHCVSS 8.8≥ 16.0.1, < 16.0.14334.209742026-10-13
CVE-2026-88150 [HIGH] CWE-908 CVE-2026-88150: Use of uninitialized resource in Microsoft Office Word allows an unauthorized attacker to execute co Use of uninitialized resource in Microsoft Office Word allows an unauthorized attacker to execute code over a network.
nvd
CVE-2026-108450P3HIGHCVSS 8.8≥ 16.0.1, < 16.0.14334.209742026-10-15
CVE-2026-108450 [HIGH] CWE-122 CVE-2026-108450: Heap-based buffer overflow in Microsoft Office Word allows an unauthorized attacker to execute code Heap-based buffer overflow in Microsoft Office Word allows an unauthorized attacker to execute code over a network.
nvd
CVE-2026-108429P3HIGHCVSS 8.8≥ 16.0.1, < 16.0.14334.209742026-10-15
CVE-2026-108429 [HIGH] CWE-122 CVE-2026-108429: Heap-based buffer overflow in Microsoft Office Word allows an unauthorized attacker to execute code Heap-based buffer overflow in Microsoft Office Word allows an unauthorized attacker to execute code over a network.
nvd
CVE-2026-108432P3HIGHCVSS 8.8≥ 16.0.1, < 16.0.14334.209742026-10-15
CVE-2026-108432 [HIGH] CWE-122 CVE-2026-108432: Heap-based buffer overflow in Microsoft Office Word allows an unauthorized attacker to execute code Heap-based buffer overflow in Microsoft Office Word allows an unauthorized attacker to execute code over a network.
nvd
CVE-2026-108447P3HIGHCVSS 8.8≥ 16.0.1, < 16.0.14334.209742026-10-15
CVE-2026-108447 [HIGH] CWE-122 CVE-2026-108447: Heap-based buffer overflow in Microsoft Office Word allows an unauthorized attacker to execute code Heap-based buffer overflow in Microsoft Office Word allows an unauthorized attacker to execute code over a network.
nvd
CVE-2026-108442P3HIGHCVSS 8.8≥ 16.0.1, < 16.0.14334.209742026-10-15
CVE-2026-108442 [HIGH] CWE-416 CVE-2026-108442: Use after free in Microsoft Office Word allows an unauthorized attacker to execute code over a netwo Use after free in Microsoft Office Word allows an unauthorized attacker to execute code over a network.
nvd
CVE-2026-108446P3HIGHCVSS 8.8≥ 16.0.1, < 16.0.14334.209742026-10-15
CVE-2026-108446 [HIGH] CWE-416 CVE-2026-108446: Use after free in Microsoft Office Excel allows an unauthorized attacker to execute code over a netw Use after free in Microsoft Office Excel allows an unauthorized attacker to execute code over a network.
nvd
CVE-2026-108441P3HIGHCVSS 8.8≥ 16.0.1, < 16.0.14334.209742026-10-15
CVE-2026-108441 [HIGH] CWE-122 CVE-2026-108441: Heap-based buffer overflow in Microsoft Office Word allows an unauthorized attacker to execute code Heap-based buffer overflow in Microsoft Office Word allows an unauthorized attacker to execute code over a network.
nvd
CVE-2026-108437P3HIGHCVSS 8.8≥ 16.0.1, < 16.0.14334.209742026-10-15
CVE-2026-108437 [HIGH] CWE-122 CVE-2026-108437: Heap-based buffer overflow in Microsoft Office Word allows an unauthorized attacker to execute code Heap-based buffer overflow in Microsoft Office Word allows an unauthorized attacker to execute code over a network.
nvd
CVE-2026-108428P3HIGHCVSS 8.8≥ 16.0.1, < 16.0.14334.209742026-10-15
CVE-2026-108428 [HIGH] CWE-122 CVE-2026-108428: Heap-based buffer overflow in Microsoft Office Word allows an unauthorized attacker to execute code Heap-based buffer overflow in Microsoft Office Word allows an unauthorized attacker to execute code over a network.
nvd
CVE-2026-108430P3HIGHCVSS 8.8≥ 16.0.1, < 16.0.14334.209742026-10-15
CVE-2026-108430 [HIGH] CWE-122 CVE-2026-108430: Heap-based buffer overflow in Microsoft Office Word allows an unauthorized attacker to execute code Heap-based buffer overflow in Microsoft Office Word allows an unauthorized attacker to execute code over a network.
nvd
CVE-2026-108439P3HIGHCVSS 8.8≥ 16.0.1, < 16.0.14334.209742026-10-15
CVE-2026-108439 [HIGH] CWE-122 CVE-2026-108439: Heap-based buffer overflow in Microsoft Office Word allows an unauthorized attacker to execute code Heap-based buffer overflow in Microsoft Office Word allows an unauthorized attacker to execute code over a network.
nvd
CVE-2026-108449P3HIGHCVSS 8.8≥ 16.0.1, < 16.0.14334.209742026-10-15
CVE-2026-108449 [HIGH] CWE-122 CVE-2026-108449: Heap-based buffer overflow in Microsoft Office Word allows an unauthorized attacker to execute code Heap-based buffer overflow in Microsoft Office Word allows an unauthorized attacker to execute code over a network.
nvd
CVE-2026-108426P3HIGHCVSS 8.8≥ 16.0.1, < 16.0.14334.209742026-10-15
CVE-2026-108426 [HIGH] CWE-122 CVE-2026-108426: Heap-based buffer overflow in Microsoft Office Word allows an unauthorized attacker to execute code Heap-based buffer overflow in Microsoft Office Word allows an unauthorized attacker to execute code over a network.
nvd
CVE-2026-97767P3HIGHCVSS 8.8≥ 16.0.1, < 16.0.14334.209742026-10-13
CVE-2026-97767 [HIGH] CWE-415 CVE-2026-97767: Double free in Microsoft Office Excel allows an unauthorized attacker to execute code over a network Double free in Microsoft Office Excel allows an unauthorized attacker to execute code over a network.
nvd
Microsoft Office Ltsc 2021 vulnerabilities | cvebase