Known vulnerabilities in Windows Server - page 87

Vendor: Microsoft
Software: Windows Server
Software CPE: cpe:2.3:o:microsoft:windows_server:*:*:*:*:*:*:*:*
Website: https://www.microsoft.com
Total vulnerabilities: 8285
Public exploits: 499
Known exploited (KEV): 274

Breakdown by Severity Chart

Severity distribution of vulnerabilities affecting Windows Server Windows Server is affected by 8285 known vulnerabilities: 96 critical, 1510 high, 1532 medium, 5147 low Critical High Medium Low

Vulnerabilities (8285)

Vulnerability CWE-ID CSH Severity Public Exploit KEV First fixed release Published Bulletins
#VU121266 - Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')
CVE-2026-20919		 CWE-362 Medium
No
No
 2012 R2 6.3.9600.22968, 2012 6.2.9200.25868, 2016 10.0.14393.8783, 2019 10.0.17763.8276, 2022 23H2 10.0.25398.2092, 2022 10.0.20348.4648, 2025 10.0.26100.7623, 2025 10.0.26100.32230 13.01.2026 SB2026011390
#VU121265 - Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')
CVE-2026-20921		 CWE-362 Medium
No
No
 2008 R2 6.1.7601.28117, 2008 6.0.6003.23717, 2012 R2 6.3.9600.22968, 2012 6.2.9200.25868, 2016 10.0.14393.8783, 2019 10.0.17763.8276, 2022 23H2 10.0.25398.2092, 2022 10.0.20348.4648, 2025 10.0.26100.7623, 2025 10.0.26100.32230 13.01.2026 SB2026011390
#VU121264 - Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')
CVE-2026-20927		 CWE-362 Medium
No
No
 2008 R2 6.1.7601.28117, 2008 6.0.6003.23717, 2012 R2 6.3.9600.22968, 2012 6.2.9200.25868, 2016 10.0.14393.8783, 2019 10.0.17763.8276, 2022 23H2 10.0.25398.2092, 2022 10.0.20348.4648, 2025 10.0.26100.7623, 2025 10.0.26100.32230 13.01.2026 SB2026011390
#VU121263 - Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')
CVE-2026-20934		 CWE-362 Medium
No
No
 2012 R2 6.3.9600.22968, 2012 6.2.9200.25868, 2016 10.0.14393.8783, 2019 10.0.17763.8276, 2022 23H2 10.0.25398.2092, 2022 10.0.20348.4648, 2025 10.0.26100.7623, 2025 10.0.26100.32230 13.01.2026 SB2026011390
#VU121260 - NULL Pointer Dereference
CVE-2026-20875		 CWE-476 Medium
No
No
 2008 R2 6.1.7601.28117, 2008 6.0.6003.23717, 2012 R2 6.3.9600.22968, 2012 6.2.9200.25868, 2016 10.0.14393.8783, 2019 10.0.17763.8276, 2022 23H2 10.0.25398.2092, 2022 10.0.20348.4648, 2025 10.0.26100.7623, 2025 10.0.26100.32230 13.01.2026 SB2026011388
#VU121259 - Use After Free
CVE-2026-20854		 CWE-416 Medium
No
No
 2025 10.0.26100.7623, 2025 10.0.26100.32230 13.01.2026 SB2026011388
#VU121257 - Exposure of sensitive information to an unauthorized actor
CVE-2026-20827		 CWE-200 Low
No
No
 2016 10.0.14393.8783, 2019 10.0.17763.8276, 2022 23H2 10.0.25398.2092, 2022 10.0.20348.4648, 2025 10.0.26100.7623, 2025 10.0.26100.32230 13.01.2026 SB2026011386
#VU121256 - Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')
CVE-2026-20826		 CWE-362 Low
No
No
 2016 10.0.14393.8783, 2019 10.0.17763.8276, 2022 23H2 10.0.25398.2092, 2022 10.0.20348.4648, 2025 10.0.26100.7623, 2025 10.0.26100.32230 13.01.2026 SB2026011386
#VU121255 - Improper Access Control
CVE-2026-20825		 CWE-284 Low
No
No
 2019 10.0.17763.8276, 2022 23H2 10.0.25398.2092, 2022 10.0.20348.4648, 2025 10.0.26100.7623, 2025 10.0.26100.32230 13.01.2026 SB2026011385
#VU121254 - Use After Free
CVE-2026-20822		 CWE-416 Low
No
No
 2016 10.0.14393.8783, 2019 10.0.17763.8276, 2022 23H2 10.0.25398.2092, 2022 10.0.20348.4648, 2025 10.0.26100.7623, 2025 10.0.26100.32230 13.01.2026 SB2026011384
#VU121253 - Double Free
CVE-2026-20832		 CWE-415 Low
No
No
 2016 10.0.14393.8783, 2019 10.0.17763.8276, 2022 23H2 10.0.25398.2092, 2022 10.0.20348.4648, 2025 10.0.26100.7623, 2025 10.0.26100.32230 13.01.2026 SB2026011383
#VU121252 - Exposure of sensitive information to an unauthorized actor
CVE-2026-20821		 CWE-200 Low
No
No
 2008 R2 6.1.7601.28117, 2008 6.0.6003.23717, 2012 R2 6.3.9600.22968, 2012 6.2.9200.25868, 2016 10.0.14393.8783, 2019 10.0.17763.8276, 2022 23H2 10.0.25398.2092, 2022 10.0.20348.4648, 2025 10.0.26100.7623, 2025 10.0.26100.32230 13.01.2026 SB2026011382
#VU121251 - Heap-based Buffer Overflow
CVE-2026-20820		 CWE-122 Low
No
No
 2008 R2 6.1.7601.28117, 2008 6.0.6003.23717, 2012 R2 6.3.9600.22968, 2012 6.2.9200.25868, 2016 10.0.14393.8783, 2019 10.0.17763.8276, 2022 23H2 10.0.25398.2092, 2022 10.0.20348.4648, 2025 10.0.26100.7623, 2025 10.0.26100.32230 13.01.2026 SB2026011381
#VU121248 - Heap-based Buffer Overflow
CVE-2026-20876		 CWE-122 Low
No
No
 2022 23H2 10.0.25398.2092, 2025 10.0.26100.7623, 2025 10.0.26100.32230 13.01.2026 SB2026011380
#VU121246 - Permissions, Privileges, and Access Controls
CVE-2026-20817		 CWE-264 Low
Available
No
 2022 23H2 10.0.25398.2092, 2022 10.0.20348.4648, 2025 10.0.26100.7623, 2025 10.0.26100.32230 13.01.2026 SB2026011377
#VU121245 - Time-of-check Time-of-use (TOCTOU) Race Condition
CVE-2026-20816		 CWE-367 Low
No
No
 2008 R2 6.1.7601.28117, 2008 6.0.6003.23717, 2012 R2 6.3.9600.22968, 2012 6.2.9200.25868, 2016 10.0.14393.8783, 2019 10.0.17763.8276, 2022 23H2 10.0.25398.2092, 2022 10.0.20348.4648, 2025 10.0.26100.7623, 2025 10.0.26100.32230 13.01.2026 SB2026011376
#VU121244 - Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')
CVE-2026-21221		 CWE-362 Low
No
No
 2025 10.0.26100.7623 13.01.2026 SB2026011375
#VU121243 - Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')
CVE-2026-20830		 CWE-362 Low
No
No
 2025 10.0.26100.7623 13.01.2026 SB2026011375
#VU121242 - Out-of-bounds read
CVE-2026-20851		 CWE-125 Low
No
No
 2025 10.0.26100.7623, 2025 10.0.26100.32230 13.01.2026 SB2026011375
#VU121240 - Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')
CVE-2026-20815		 CWE-362 Low
No
No
 2025 10.0.26100.7623, 2025 10.0.26100.32230 13.01.2026 SB2026011375


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