Microsoft Windows Server 2008 R2 Service Pack 1 (Server Core installation)

Name: Microsoft Windows Server 2008 R2 Service Pack 1 (Server Core installation)
Brand: Microsoft

productEU

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

by severity

8critical292high401medium70low

updated 2026-10-27

vulnerabilities (2,146)

Related CVEs.

sort

ID	severity	EPSS	exploitable	patched	published	affected
CVE-2025-59287US	—OT critical	100.0% (100th)	KEV	no fix	2025-10-14	≤ vers:unknown/*
CVE-2021-34527US	high9.0OT critical	99.8% (100th)	KEV	6.1.7601.25633	2021-07-02	6.1.7601.0 → 6.1.7601.25633
CVE-2023-36884US	—OT critical	99.4% (100th)	KEV	6.1.7601.26664	2023-07-11	6.1.7601.0 → 6.1.7601.26664
CVE-2020-1472US	high9.3OT critical	99.4% (100th)	KEV	publication	2020-08-17	6.0.0 → publication
CVE-2022-30190US	high9.3OT critical	99.2% (100th)	KEV	6.1.7601.25984	2022-06-01	6.1.7601.0 → 6.1.7601.25984
CVE-2021-40444US	medium6.8OT critical	97.8% (100th)	KEV	6.1.7601.25712	2021-09-15	6.1.7601.0 → 6.1.7601.25712
CVE-2023-36025US	high8.8OT critical	88.1% (100th)	KEV	6.1.7601.26816	2023-11-14	6.1.7601.0 → 6.1.7601.26816
CVE-2025-33053US	—OT critical	87.0% (100th)	KEV	6.1.7601.27769	2025-06-10	3 versions
CVE-2021-1675US	high9.3OT critical	85.3% (100th)	KEV	6.1.7601.25632	2021-06-08	6.0.0 → 6.1.7601.25632
CVE-2024-43451US	—OT critical	84.3% (100th)	KEV	6.1.7601.27415	2024-11-12	6.1.7601.0 → 6.1.7601.27415
CVE-2025-33073US	—OT critical	82.7% (100th)	KEV	6.1.7601.27769	2025-06-10	3 versions
CVE-2021-40449US	medium4.6OT critical	81.9% (100th)	KEV	6.1.7601.25740	2021-10-13	6.0.0 → 6.1.7601.25740
CVE-2021-42287US	medium6.5OT critical	77.2% (100th)	KEV	6.1.7601.25769	2021-11-10	6.0.0 → 6.1.7601.25769
CVE-2021-42278US	medium6.5OT critical	73.3% (99th)	KEV	6.1.7601.25769	2021-11-10	6.0.0 → 6.1.7601.25769
CVE-2021-36942US	medium5.0OT critical	66.0% (99th)	KEV	6.1.7601.25685	2021-08-12	6.1.7601.0 → 6.1.7601.25685
CVE-2025-24054US	medium5.4OT critical	62.3% (99th)	KEV	6.1.7601.27618	2025-03-11	2 versions
CVE-2023-28252US	—OT critical	48.9% (99th)	KEV	6.1.7601.26466	2023-04-11	6.1.7601.0 → 6.1.7601.26466
CVE-2013-3900US	high7.6OT critical	44.6% (99th)	KEV	no fix	2013-12-11	≤ N/A
CVE-2023-36874US	—OT critical	42.6% (99th)	KEV	6.1.7601.26623	2023-07-11	6.1.7601.0 → 6.1.7601.26623
CVE-2023-29336US	—OT critical	41.2% (99th)	KEV	6.1.7601.26519	2023-05-09	6.1.7601.0 → 6.1.7601.26519
CVE-2022-21999US	medium4.6OT critical	41.0% (99th)	KEV	6.1.7601.25860	2022-02-09	6.1.7601.0 → 6.1.7601.25860
CVE-2025-26633US	—OT critical	30.4% (98th)	KEV	6.1.7601.27618	2025-03-11	2 versions
CVE-2024-38193US	—OT critical	28.7% (98th)	KEV	6.1.7601.27277	2024-08-13	6.1.7601.0 → 6.1.7601.27277
CVE-2022-37969US	—OT critical	28.3% (98th)	KEV	6.1.7601.26115	2022-09-13	6.1.7601.0 → 6.1.7601.26115
CVE-2025-30397US	—OT critical	27.3% (98th)	KEV	6.1.7601.27729	2025-05-13	6.1.7601.0 → 6.1.7601.27729
CVE-2024-49138US	—OT critical	26.2% (98th)	KEV	6.1.7601.27467	2024-12-12	6.1.7601.0 → 6.1.7601.27467
CVE-2024-35250US	—OT critical	25.2% (98th)	KEV	6.1.7601.27170	2024-06-11	6.1.7601.0 → 6.1.7601.27170
CVE-2021-31956US	high9.3OT critical	22.3% (98th)	KEV	6.1.7601.25632	2021-06-08	6.0.0 → 6.1.7601.25632
CVE-2025-29824US	—OT critical	19.3% (97th)	KEV	6.1.7601.27670	2025-04-08	6.1.7601.0 → 6.1.7601.27670
CVE-2022-22718US	high7.2OT critical	18.5% (97th)	KEV	6.1.7601.25860	2022-02-09	6.1.7601.0 → 6.1.7601.25860
CVE-2022-26904US	medium4.4OT critical	16.9% (97th)	KEV	6.1.7601.25924	2022-04-15	6.1.7601.0 → 6.1.7601.25924
CVE-2023-36424US	high7.8OT critical	12.1% (96th)	KEV	6.1.7601.26816	2023-11-14	6.1.7601.0 → 6.1.7601.26816
CVE-2026-20805US	—OT critical	7.46% (94th)	KEV	no fix	2026-01-13	≤ vers:unknown/*
CVE-2022-24521US	medium4.6OT critical	7.13% (94th)	KEV	6.1.7601.25924	2022-04-15	6.1.7601.0 → 6.1.7601.25924
CVE-2025-24990US	—OT critical	6.37% (94th)	KEV	6.1.7601.27974	2025-10-14	2 versions
CVE-2023-21823US	—OT critical	5.56% (93rd)	KEV	6.1.7601.26366	2023-02-14	6.1.7601.0 → 6.1.7601.26366
CVE-2020-17087US	high7.2OT critical	5.43% (93rd)	KEV	publication	2020-11-11	6.0.0 → publication
CVE-2025-47827US	—OT critical	4.93% (92nd)	KEV	no fix	2025-06-05	≤ vers:unknown/*
CVE-2021-36955US	medium4.6OT critical	4.07% (91st)	KEV	6.1.7601.25712	2021-09-15	6.1.7601.0 → 6.1.7601.25712
CVE-2025-24985US	—OT critical	3.89% (90th)	KEV	6.1.7601.27618	2025-03-11	2 versions
CVE-2021-43226US	high7.8OT critical	3.28% (88th)	KEV	6.1.7601.25796	2021-12-15	6.0.0 → 6.1.7601.25796
CVE-2025-32709US	—OT critical	1.82% (79th)	KEV	6.1.7601.27730	2025-05-13	6.1.7601.0 → 6.1.7601.27730
CVE-2023-28229US	—OT critical	1.67% (77th)	KEV	6.1.7601.26466	2023-04-11	6.1.7601.0 → 6.1.7601.26466
CVE-2022-34713US	—OT critical	67.8% (99th)	KEV	6.1.7601.26065	2022-08-09	6.1.7601.0 → 6.1.7601.26065
CVE-2024-43572US	—OT critical	66.7% (99th)	KEV	6.1.7601.27366	2024-10-08	6.1.7601.0 → 6.1.7601.27366
CVE-2024-43461US	—OT critical	54.5% (99th)	KEV	6.1.7601.27320	2024-09-10	6.1.7601.0 → 6.1.7601.27320
CVE-2020-1464US	low2.1OT critical	38.9% (99th)	KEV	publication	2020-08-17	6.0.0 → publication
CVE-2021-34484US	medium4.6OT critical	21.8% (98th)	KEV	6.1.7601.25685	2021-08-12	6.1.7601.0 → 6.1.7601.25685
CVE-2023-36563US	medium5.5OT critical	20.3% (97th)	KEV	6.1.7601.26769	2023-10-10	6.1.7601.0 → 6.1.7601.26769
CVE-2021-41379US	medium4.6OT critical	19.5% (97th)	KEV	6.1.7601.25769	2021-11-10	6.0.0 → 6.1.7601.25769

showing 50 of 2,146

weaknesses (8)

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

CWE-20Improper Input Validation340 CVEs
CWE-264CWE-264244 CVEs
CWE-122Heap-based Buffer Overflow233 CVEs
CWE-416Use After Free217 CVEs
CWE-200Exposure of Sensitive Information to an Unauthorized Actor194 CVEs
CWE-269Improper Privilege Management190 CVEs
CWE-362Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')167 CVEs
CWE-125Out-of-bounds Read157 CVEs

sources (2)

Which sources assert this record, and when.

EUEU Vulnerability Database (ENISA)1,860 CVEs
NLNCSC-NL (CSAF)467 CVEs

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