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