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 16 of 40
CVE-2026-97001P3HIGHCVSS 7.8≥ 16.0.1, < 16.0.14334.209742026-10-13
CVE-2026-97001 [HIGH] CWE-122 CVE-2026-97001: 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 locally.
nvd
CVE-2026-33095P3HIGHCVSS 7.8≥ 16.0.1, < https://aka.ms/OfficeSecurityReleases2026-04-14
CVE-2026-33095 [HIGH] CWE-416 CVE-2026-33095: 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-2026-32189P3HIGHCVSS 7.8≥ 16.0.1, < https://aka.ms/OfficeSecurityReleases2026-04-14
CVE-2026-32189 [HIGH] CWE-416 CVE-2026-32189: 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-2026-40359P3HIGHCVSS 7.8≥ 16.0.1, < https://aka.ms/OfficeSecurityReleases2026-05-12
CVE-2026-40359 [HIGH] CWE-416 CVE-2026-40359: 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-2026-40362P3HIGHCVSS 7.8≥ 16.0.1, < https://aka.ms/OfficeSecurityReleases2026-05-12
CVE-2026-40362 [HIGH] CWE-122 CVE-2026-40362: 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-2026-96996P3HIGHCVSS 7.8≥ 16.0.1, < 16.0.14334.209742026-10-13
CVE-2026-96996 [HIGH] CWE-122 CVE-2026-96996: 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 locally.
nvd
CVE-2026-97009P3HIGHCVSS 7.8≥ 16.0.1, < 16.0.14334.209742026-10-13
CVE-2026-97009 [HIGH] CWE-122 CVE-2026-97009: 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-2026-32200P3HIGHCVSS 7.8≥ 16.0.1, < https://aka.ms/OfficeSecurityReleases2026-04-14
CVE-2026-32200 [HIGH] CWE-416 CVE-2026-32200: 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-2026-68792P3HIGHCVSS 7.8≥ 16.0.1, < https://aka.ms/OfficeSecurityReleases2026-08-11
CVE-2026-68792 [HIGH] CWE-77 CVE-2026-68792: Improper neutralization of special elements used in a command ('command injection') in Microsoft Off
Improper neutralization of special elements used in a command ('command injection') in Microsoft Office allows an authorized attacker to elevate privileges locally.
nvd
CVE-2026-32198P3HIGHCVSS 7.8≥ 16.0.1, < https://aka.ms/OfficeSecurityReleases2026-04-14
CVE-2026-32198 [HIGH] CWE-416 CVE-2026-32198: 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-2026-32199P3HIGHCVSS 7.8≥ 16.0.1, < https://aka.ms/OfficeSecurityReleases2026-04-14
CVE-2026-32199 [HIGH] CWE-416 CVE-2026-32199: 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-2026-32197P3HIGHCVSS 7.8≥ 16.0.1, < https://aka.ms/OfficeSecurityReleases2026-04-14
CVE-2026-32197 [HIGH] CWE-416 CVE-2026-32197: 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-2026-105715P3HIGHCVSS 7.5≥ 16.0.1, < 16.0.14334.209742026-10-13
CVE-2026-105715 [HIGH] CWE-190 CVE-2026-105715: Integer overflow or wraparound in Microsoft Office Word allows an unauthorized attacker to execute c
Integer overflow or wraparound in Microsoft Office Word allows an unauthorized attacker to execute code over a network.
nvd
CVE-2025-21362P3HIGHCVSS 8.4≥ 16.0.1, < https://aka.ms/OfficeSecurityReleases2025-01-14
CVE-2025-21362 [HIGH] CWE-416 CVE-2025-21362: Microsoft Excel Remote Code Execution Vulnerability
Microsoft Excel Remote Code Execution Vulnerability
nvd
CVE-2025-53733P3HIGHCVSS 8.4≥ 16.0.1, < https://aka.ms/OfficeSecurityReleases2025-08-12
CVE-2025-53733 [HIGH] CWE-681 CVE-2025-53733: Incorrect conversion between numeric types in Microsoft Office Word allows an unauthorized attacker
Incorrect conversion between numeric types in Microsoft Office Word allows an unauthorized attacker to execute code locally.
nvd
CVE-2025-62199P3HIGHCVSS 7.8≥ 16.0.1, < https://aka.ms/OfficeSecurityReleases2025-11-11
CVE-2025-62199 [HIGH] CWE-416 CVE-2025-62199: 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-2025-62553P3HIGHCVSS 7.8≥ 16.0.1, < https://aka.ms/OfficeSecurityReleases2025-12-09
CVE-2025-62553 [HIGH] CWE-416 CVE-2025-62553: 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-2025-62558P3HIGHCVSS 7.8≥ 16.0.1, < https://aka.ms/OfficeSecurityReleases2025-12-09
CVE-2025-62558 [HIGH] CWE-416 CVE-2025-62558: 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-2025-62559P3HIGHCVSS 7.8≥ 16.0.1, < https://aka.ms/OfficeSecurityReleases2025-12-09
CVE-2025-62559 [HIGH] CWE-416 CVE-2025-62559: 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-2025-62563P3HIGHCVSS 7.8≥ 16.0.1, < https://aka.ms/OfficeSecurityReleases2025-12-09
CVE-2025-62563 [HIGH] CWE-416 CVE-2025-62563: 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