Microsoft Microsoft Office LTSC 2021

Name: Microsoft Microsoft Office LTSC 2021
Brand: Microsoft

productEU

A product tracked in the threat graph; the vulnerabilities below are known to affect it.

by severity

2critical25high58medium9low

updated 2026-10-27

vulnerabilities (540)

Related CVEs.

sort

ID	severity	EPSS	exploitable	patched	published	affected
CVE-2023-23397US	critical9.8OT critical	97.2% (100th)	KEV	https://aka.ms/OfficeSecurityReleases	2023-03-14	16.0.1 → https://aka.ms/OfficeSecurityReleases
CVE-2024-21413US	—OT critical	94.7% (100th)	KEV	https://aka.ms/OfficeSecurityReleases	2024-02-13	16.0.1 → https://aka.ms/OfficeSecurityReleases
CVE-2026-21509US	—OT critical	70.8% (99th)	KEV	https://aka.ms/OfficeSecurityReleases	2026-01-26	2 versions
CVE-2026-32201US	medium6.5OT critical	43.4% (99th)	KEV	no fix	2026-04-14	≤ vers:unknown/*
CVE-2021-42292US	medium6.8OT critical	43.0% (99th)	KEV	https://aka.ms/OfficeSecurityReleases	2021-11-10	16.0.1 → https://aka.ms/OfficeSecurityReleases
CVE-2026-21514US	—OT critical	1.59% (75th)	KEV	https://aka.ms/OfficeSecurityReleases	2026-02-10	2 versions
CVE-2026-20963US	—OT critical	29.2% (98th)	KEV	no fix	2026-01-13	≤ vers:unknown/*
CVE-2023-36761US	medium6.5OT critical	19.6% (97th)	KEV	https://aka.ms/OfficeSecurityReleases	2023-09-12	16.0.1 → https://aka.ms/OfficeSecurityReleases
CVE-2023-35311US	—OT critical	15.5% (97th)	KEV	https://aka.ms/OfficeSecurityReleases	2023-07-11	16.0.1 → https://aka.ms/OfficeSecurityReleases
CVE-2024-38189US	—OT critical	8.19% (95th)	KEV	https://aka.ms/OfficeSecurityReleases	2024-08-13	16.0.1 → https://aka.ms/OfficeSecurityReleases
CVE-2024-38226US	—OT critical	2.67% (86th)	KEV	https://aka.ms/OfficeSecurityReleases	2024-09-10	16.0.1 → https://aka.ms/OfficeSecurityReleases
CVE-2023-21716US	critical9.8	84.8% (100th)	Exploit	https://aka.ms/OfficeSecurityReleases	2023-02-14	16.0.1 → https://aka.ms/OfficeSecurityReleases
CVE-2025-54897US	—	21.7% (98th)	Exploit	no fix	2025-09-09	≤ vers:unknown/*
CVE-2024-38200US	—	21.7% (98th)	Exploit	https://aka.ms/OfficeSecurityReleases	2024-08-12	16.0.1 → https://aka.ms/OfficeSecurityReleases
CVE-2023-35636US	—	17.7% (97th)	Exploit	https://aka.ms/OfficeSecurityReleases	2023-12-12	16.0.1 → https://aka.ms/OfficeSecurityReleases
CVE-2024-21378US	—	11.0% (96th)	Exploit	https://aka.ms/OfficeSecurityReleases	2024-02-13	16.0.1 → https://aka.ms/OfficeSecurityReleases
CVE-2023-33131US	—	5.72% (93rd)	Exploit	https://aka.ms/OfficeSecurityReleases	2023-06-14	16.0.1 → https://aka.ms/OfficeSecurityReleases
CVE-2023-23399US	—	2.53% (85th)	Exploit	https://aka.ms/OfficeSecurityReleases	2023-03-14	16.0.1 → https://aka.ms/OfficeSecurityReleases
CVE-2025-27751US	—	2.48% (84th)	Exploit	https://aka.ms/OfficeSecurityReleases	2025-04-08	16.0.1 → https://aka.ms/OfficeSecurityReleases
CVE-2025-47175US	—	2.39% (84th)	Exploit	https://aka.ms/OfficeSecurityReleases	2025-06-10	16.0.1 → https://aka.ms/OfficeSecurityReleases
CVE-2025-47165US	—	2.19% (82nd)	Exploit	https://aka.ms/OfficeSecurityReleases	2025-06-10	16.0.1 → https://aka.ms/OfficeSecurityReleases
CVE-2023-33148US	—	2.06% (81st)	Exploit	https://aka.ms/OfficeSecurityReleases	2023-07-11	16.0.1 → https://aka.ms/OfficeSecurityReleases
CVE-2025-47171US	—	1.68% (77th)	Exploit	https://aka.ms/OfficeSecurityReleases	2025-06-10	16.0.1 → https://aka.ms/OfficeSecurityReleases
CVE-2025-47957US	—	1.31% (71st)	Exploit	https://aka.ms/OfficeSecurityReleases	2025-06-10	16.0.1 → https://aka.ms/OfficeSecurityReleases
CVE-2023-36041US	high7.8	56.7% (99th)	—	https://aka.ms/OfficeSecurityReleases	2023-11-14	16.0.1 → https://aka.ms/OfficeSecurityReleases
CVE-2023-32029US	—	53.5% (99th)	—	https://aka.ms/OfficeSecurityReleases	2023-06-14	16.0.1 → https://aka.ms/OfficeSecurityReleases
CVE-2023-33133US	—	44.0% (99th)	—	https://aka.ms/OfficeSecurityReleases	2023-06-14	16.0.1 → https://aka.ms/OfficeSecurityReleases
CVE-2023-36413US	medium6.5	30.0% (98th)	—	https://aka.ms/OfficeSecurityReleases	2023-11-14	16.0.1 → https://aka.ms/OfficeSecurityReleases
CVE-2022-35742US	—	22.3% (98th)	—	https://aka.ms/OfficeSecurityReleases	2023-06-01	16.0.1 → https://aka.ms/OfficeSecurityReleases
CVE-2026-20945US	medium5.4	19.1% (97th)	—	no fix	2026-04-14	≤ vers:unknown/*
CVE-2026-20947US	—	18.4% (97th)	—	no fix	2026-01-13	≤ vers:unknown/*
CVE-2026-20959US	medium5.4	7.68% (95th)	—	no fix	2026-01-13	≤ vers:unknown/*
CVE-2024-43504US	—	6.50% (94th)	—	https://aka.ms/OfficeSecurityReleases	2024-10-08	16.0.1 → https://aka.ms/OfficeSecurityReleases
CVE-2021-40481US	medium6.8	5.85% (93rd)	—	https://aka.ms/OfficeSecurityReleases	2021-10-13	16.0.1 → https://aka.ms/OfficeSecurityReleases
CVE-2021-40480US	medium6.8	5.70% (93rd)	—	https://aka.ms/OfficeSecurityReleases	2021-10-13	16.0.1 → https://aka.ms/OfficeSecurityReleases
CVE-2021-43875US	high7.8	5.37% (93rd)	—	https://aka.ms/OfficeSecurityReleases	2021-12-15	16.0.1 → https://aka.ms/OfficeSecurityReleases
CVE-2021-41368US	medium6.8	4.95% (92nd)	—	https://aka.ms/OfficeSecurityReleases	2021-11-10	16.0.1 → https://aka.ms/OfficeSecurityReleases
CVE-2022-22716US	medium4.3	4.60% (92nd)	—	https://aka.ms/OfficeSecurityReleases	2022-02-09	16.0.1 → https://aka.ms/OfficeSecurityReleases
CVE-2026-40364US	—	4.42% (91st)	—	https://aka.ms/OfficeSecurityReleases	2026-05-12	16.0.1 → https://aka.ms/OfficeSecurityReleases
CVE-2026-21511US	—	3.97% (90th)	—	https://aka.ms/OfficeSecurityReleases	2026-02-10	2 versions
CVE-2024-38021US	—	3.50% (89th)	—	https://aka.ms/OfficeSecurityReleases	2024-07-09	16.0.1 → https://aka.ms/OfficeSecurityReleases
CVE-2024-30103US	—	3.42% (89th)	—	https://aka.ms/OfficeSecurityReleases	2024-06-11	16.0.1 → https://aka.ms/OfficeSecurityReleases
CVE-2023-33151US	—	3.40% (89th)	—	https://aka.ms/OfficeSecurityReleases	2023-07-11	16.0.1 → https://aka.ms/OfficeSecurityReleases
CVE-2025-47994US	high8.6	3.28% (88th)	—	https://aka.ms/OfficeSecurityReleases	2025-07-08	16.0.1 → https://aka.ms/OfficeSecurityReleases
CVE-2024-20677US	—	3.26% (88th)	—	https://aka.ms/OfficeSecurityReleases	2024-01-09	16.0.1 → https://aka.ms/OfficeSecurityReleases
CVE-2022-30174US	medium6.8	3.22% (88th)	—	https://aka.ms/OfficeSecurityReleases	2022-06-15	16.0.1 → https://aka.ms/OfficeSecurityReleases
CVE-2023-36767US	medium4.3	3.14% (88th)	—	https://aka.ms/OfficeSecurityReleases	2023-09-12	16.0.1 → https://aka.ms/OfficeSecurityReleases
CVE-2022-21840US	high8.8	3.10% (88th)	—	https://aka.ms/OfficeSecurityReleases	2022-01-11	16.0.1 → https://aka.ms/OfficeSecurityReleases
CVE-2022-29107US	medium5.5	3.06% (87th)	—	https://aka.ms/OfficeSecurityReleases	2022-05-10	16.0.1 → https://aka.ms/OfficeSecurityReleases
CVE-2021-42293US	medium6.5	3.05% (87th)	—	https://aka.ms/OfficeSecurityReleases	2021-12-15	16.0.1 → https://aka.ms/OfficeSecurityReleases

showing 50 of 540

weaknesses (8)

The flaw types (CWEs) most of these CVEs share.

CWE-416Use After Free132 CVEs
CWE-122Heap-based Buffer Overflow95 CVEs
CWE-125Out-of-bounds Read83 CVEs
CWE-20Improper Input Validation69 CVEs
CWE-822Untrusted Pointer Dereference26 CVEs
CWE-843Access of Resource Using Incompatible Type ('Type Confusion')22 CVEs
CWE-200Exposure of Sensitive Information to an Unauthorized Actor19 CVEs
CWE-121Stack-based Buffer Overflow16 CVEs

sources (2)

Which sources assert this record, and when.

EUEU Vulnerability Database (ENISA)522 CVEs
NLNCSC-NL (CSAF)72 CVEs

scry

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