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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

SortPage 25 of 40

CVE-2026-108433P3HIGHCVSS 7.8≥ 16.0.1, < 16.0.14334.209742026-10-15

CVE-2026-108433 [HIGH] CWE-807 CVE-2026-108433: Reliance on untrusted inputs in a security decision in Microsoft Office Word allows an unauthorized Reliance on untrusted inputs in a security decision in Microsoft Office Word allows an unauthorized attacker to bypass a security feature locally.

CVE-2026-44820P3HIGHCVSS 7.8≥ 16.0.1, < https://aka.ms/OfficeSecurityReleases2026-06-09

CVE-2026-44820 [HIGH] CWE-125 CVE-2026-44820: 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.

CVE-2026-45645P3HIGHCVSS 7.8≥ 16.0.1, < https://aka.ms/OfficeSecurityReleases2026-06-09

CVE-2026-45645 [HIGH] CWE-822 CVE-2026-45645: 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.

CVE-2026-45643P3HIGHCVSS 7.8≥ 16.0.1, < https://aka.ms/OfficeSecurityReleases2026-06-09

CVE-2026-45643 [HIGH] CWE-822 CVE-2026-45643: Untrusted pointer dereference in Microsoft Office Word allows an unauthorized attacker to execute co Untrusted pointer dereference in Microsoft Office Word allows an unauthorized attacker to execute code locally.

CVE-2022-24509P3HIGHCVSS 7.8≥ 16.0.1, < https://aka.ms/OfficeSecurityReleases2022-03-09

CVE-2022-24509 [HIGH] CVE-2022-24509: Microsoft Office Visio Remote Code Execution Vulnerability Microsoft Office Visio Remote Code Execution Vulnerability

CVE-2022-24461P3HIGHCVSS 7.8≥ 16.0.1, < https://aka.ms/OfficeSecurityReleases2022-03-09

CVE-2022-24461 [HIGH] CVE-2022-24461: Microsoft Office Visio Remote Code Execution Vulnerability Microsoft Office Visio Remote Code Execution Vulnerability

CVE-2022-24510P3HIGHCVSS 7.8≥ 16.0.1, < https://aka.ms/OfficeSecurityReleases2022-03-09

CVE-2022-24510 [HIGH] CVE-2022-24510: Microsoft Office Visio Remote Code Execution Vulnerability Microsoft Office Visio Remote Code Execution Vulnerability

CVE-2022-21988P3HIGHCVSS 7.8≥ 16.0.1, < https://aka.ms/OfficeSecurityReleases2022-02-09

CVE-2022-21988 [HIGH] CVE-2022-21988: Microsoft Office Visio Remote Code Execution Vulnerability Microsoft Office Visio Remote Code Execution Vulnerability

CVE-2022-21841P3HIGHCVSS 7.8≥ 16.0.1, < https://aka.ms/OfficeSecurityReleases2022-01-11

CVE-2022-21841 [HIGH] CVE-2022-21841: Microsoft Excel Remote Code Execution Vulnerability Microsoft Excel Remote Code Execution Vulnerability

CVE-2022-26901P3HIGHCVSS 7.8≥ 16.0.1, < https://aka.ms/OfficeSecurityReleases2022-04-15

CVE-2022-26901 [HIGH] CVE-2022-26901: Microsoft Excel Remote Code Execution Vulnerability Microsoft Excel Remote Code Execution Vulnerability

CVE-2021-40474P3HIGHCVSS 7.8≥ 16.0.1, < https://aka.ms/OfficeSecurityReleases2021-10-13

CVE-2021-40474 [HIGH] CVE-2021-40474: Microsoft Excel Remote Code Execution Vulnerability Microsoft Excel Remote Code Execution Vulnerability

CVE-2021-40473P3HIGHCVSS 7.8≥ 16.0.1, < https://aka.ms/OfficeSecurityReleases2021-10-13

CVE-2021-40473 [HIGH] CVE-2021-40473: Microsoft Excel Remote Code Execution Vulnerability Microsoft Excel Remote Code Execution Vulnerability

CVE-2021-40471P3HIGHCVSS 7.8≥ 16.0.1, < https://aka.ms/OfficeSecurityReleases2021-10-13

CVE-2021-40471 [HIGH] CVE-2021-40471: Microsoft Excel Remote Code Execution Vulnerability Microsoft Excel Remote Code Execution Vulnerability

CVE-2021-40479P3HIGHCVSS 7.8≥ 16.0.1, < https://aka.ms/OfficeSecurityReleases2021-10-13

CVE-2021-40479 [HIGH] CVE-2021-40479: Microsoft Excel Remote Code Execution Vulnerability Microsoft Excel Remote Code Execution Vulnerability

CVE-2021-40442P3HIGHCVSS 7.8≥ 16.0.1, < https://aka.ms/OfficeSecurityReleases2021-11-10

CVE-2021-40442 [HIGH] CVE-2021-40442: Microsoft Excel Remote Code Execution Vulnerability Microsoft Excel Remote Code Execution Vulnerability

CVE-2021-43256P3HIGHCVSS 7.8≥ 16.0.1, < https://aka.ms/OfficeSecurityReleases2021-12-15

CVE-2021-43256 [HIGH] CVE-2021-43256: Microsoft Excel Remote Code Execution Vulnerability Microsoft Excel Remote Code Execution Vulnerability

CVE-2022-24473P3HIGHCVSS 7.8≥ 16.0.1, < https://aka.ms/OfficeSecurityReleases2022-04-15

CVE-2022-24473 [HIGH] CVE-2022-24473: Microsoft Excel Remote Code Execution Vulnerability Microsoft Excel Remote Code Execution Vulnerability

CVE-2022-38048P3HIGHCVSS 7.8≥ 16.0.1, < https://aka.ms/OfficeSecurityReleases2022-10-11

CVE-2022-38048 [HIGH] CVE-2022-38048: Microsoft Office Remote Code Execution Vulnerability Microsoft Office Remote Code Execution Vulnerability

CVE-2022-37962P3HIGHCVSS 7.8≥ 16.0.1, < https://aka.ms/OfficeSecurityReleases2022-09-13

CVE-2022-37962 [HIGH] CVE-2022-37962: Microsoft PowerPoint Remote Code Execution Vulnerability Microsoft PowerPoint Remote Code Execution Vulnerability

CVE-2025-21381P3HIGHCVSS 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

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Microsoft Office Ltsc 2021 vulnerabilities | cvebase