Known vulnerabilities in Windows Server - page 39

Vendor: Microsoft
Software: Windows Server
Software CPE: cpe:2.3:o:microsoft:windows_server:*:*:*:*:*:*:*:*
Website: https://www.microsoft.com
Total vulnerabilities: 6300
Public exploits: 488
Known exploited (KEV): 268
Highest CVSSv4 Score: 9.4

Breakdown by Severity Chart

Severity distribution of vulnerabilities affecting Windows Server Windows Server is affected by 6300 known vulnerabilities: 95 critical, 1270 high, 1244 medium, 3689 low Critical High Medium Low

Vulnerabilities (6300)

Vulnerability CWE-ID CSH Severity Public Exploit KEV First fixed release Published Bulletins
#VU122550 - NULL Pointer Dereference
CVE-2026-21525		 CWE-476 Medium
No
Exploited
 2012 R2 6.3.9600.23022, 2012 6.2.9200.25923, 2016 10.0.14393.8868, 2019 10.0.17763.8389, 2022 23H2 10.0.25398.2149, 2022 10.0.20348.4711, 2022 10.0.20348.4773, 2025 10.0.26100.32313, 2025 10.0.26100.32370 10.02.2026 SB2026021063
#VU122549 - Use After Free
CVE-2026-21251		 CWE-416 Low
No
No
 2012 R2 6.3.9600.23022, 2016 10.0.14393.8868, 2019 10.0.17763.8389, 2022 23H2 10.0.25398.2149, 2022 10.0.20348.4711, 2022 10.0.20348.4773, 2025 10.0.26100.32313, 2025 10.0.26100.32370 10.02.2026 SB2026021059
#VU122548 - Improper Privilege Management
CVE-2026-21533		 CWE-269 High
No
Exploited
 2012 R2 6.3.9600.23022, 2012 6.2.9200.25923, 2016 10.0.14393.8868, 2019 10.0.17763.8389, 2022 23H2 10.0.25398.2149, 2022 10.0.20348.4711, 2022 10.0.20348.4773, 2025 10.0.26100.32313, 2025 10.0.26100.32370 10.02.2026 SB2026021060
#VU122547 - Protection Mechanism Failure
CVE-2026-21513		 CWE-693 Critical
No
Exploited
 2012 R2 6.3.9600.23022, 2012 6.2.9200.25923, 2016 10.0.14393.8868, 2019 10.0.17763.8389, 2022 23H2 10.0.25398.2149, 2022 10.0.20348.4711, 2022 10.0.20348.4773, 2025 10.0.26100.32313, 2025 10.0.26100.32370 10.02.2026 SB2026021058
#VU122546 - Use After Free
CVE-2026-21253		 CWE-416 Low
No
No
 2012 R2 6.3.9600.23022, 2012 6.2.9200.25923, 2016 10.0.14393.8868, 2019 10.0.17763.8389, 2022 23H2 10.0.25398.2149, 2022 10.0.20348.4711, 2022 10.0.20348.4773, 2025 10.0.26100.32313, 2025 10.0.26100.32370 10.02.2026 SB2026021057
#VU122545 - Improper Authentication
CVE-2026-21508		 CWE-287 Low
No
No
 2012 R2 6.3.9600.23022, 2012 6.2.9200.25923, 2016 10.0.14393.8868, 2019 10.0.17763.8389, 2022 23H2 10.0.25398.2149, 2022 10.0.20348.4711, 2022 10.0.20348.4773, 2025 10.0.26100.32313, 2025 10.0.26100.32370 10.02.2026 SB2026021056
#VU122544 - Protection Mechanism Failure
CVE-2026-21510		 CWE-693 Critical
No
Exploited
 2012 R2 6.3.9600.23022, 2012 6.2.9200.25923, 2016 10.0.14393.8868, 2019 10.0.17763.8389, 2022 23H2 10.0.25398.2149, 2022 10.0.20348.4711, 2022 10.0.20348.4773, 2025 10.0.26100.32313, 2025 10.0.26100.32370 10.02.2026 SB2026021055
#VU122543 - Information Exposure Through Log Files
CVE-2026-21222		 CWE-532 Medium
No
No
 2012 R2 6.3.9600.23022, 2016 10.0.14393.8868, 2019 10.0.17763.8389, 2022 23H2 10.0.25398.2149, 2022 10.0.20348.4711, 2022 10.0.20348.4773, 2025 10.0.26100.32313, 2025 10.0.26100.32370 10.02.2026 SB2026021054
#VU122542 - Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')
CVE-2026-21231		 CWE-362 Low
No
No
 2012 R2 6.3.9600.23022, 2012 6.2.9200.25923, 2016 10.0.14393.8868, 2019 10.0.17763.8389, 2022 23H2 10.0.25398.2149, 2022 10.0.20348.4711, 2022 10.0.20348.4773, 2025 10.0.26100.32313, 2025 10.0.26100.32370 10.02.2026 SB2026021054
#VU122541 - Heap-based Buffer Overflow
CVE-2026-21239		 CWE-122 Low
No
No
 2012 R2 6.3.9600.23022, 2012 6.2.9200.25923, 2016 10.0.14393.8868, 2019 10.0.17763.8389, 2022 23H2 10.0.25398.2149, 2022 10.0.20348.4711, 2022 10.0.20348.4773, 2025 10.0.26100.32313, 2025 10.0.26100.32370 10.02.2026 SB2026021054
#VU122539 - Heap-based Buffer Overflow
CVE-2026-21245		 CWE-122 Low
No
No
 2012 R2 6.3.9600.23022, 2025 10.0.26100.32313, 2025 10.0.26100.32370 10.02.2026 SB2026021054
#VU121460 - Stack-based buffer overflow
CVE-2023-31096		 CWE-121 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 14.01.2026 SB20260114106
#VU121454 - Use After Free
CVE-2026-20859		 CWE-416 Low
No
No
 2025 10.0.26100.7623, 2025 10.0.26100.32230 14.01.2026 SB20260114103
#VU121453 - External Control of File Name or Path
CVE-2026-20872		 CWE-73 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 14.01.2026 SB20260114102
#VU121452 - External Control of File Name or Path
CVE-2026-20925		 CWE-73 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 14.01.2026 SB20260114102
#VU121451 - Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
CVE-2026-20834		 CWE-22 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 14.01.2026 SB20260114101
#VU121450 - Improper input validation
CVE-2026-20812		 CWE-20 Medium
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 14.01.2026 SB20260114100
#VU121449 - Time-of-check Time-of-use (TOCTOU) Race Condition
CVE-2026-20809		 CWE-367 Low
No
No
 2012 R2 6.3.9600.22968, 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 14.01.2026 SB2026011499
#VU121448 - Information Exposure Through Log Files
CVE-2026-20818		 CWE-532 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 14.01.2026 SB2026011499
#VU121447 - Information Exposure Through an Error Message
CVE-2026-20838		 CWE-209 Low
No
No
 2022 23H2 10.0.25398.2092, 2022 10.0.20348.4648, 2025 10.0.26100.7623, 2025 10.0.26100.32230 14.01.2026 SB2026011499


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