Known vulnerabilities in Windows Server - page 9

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
#VU138128 - Heap-based Buffer Overflow
CVE-2026-56650		 CWE-122 Low
No
No
 2012 R2 6.3.9600.23291, 2012 6.2.9200.26226, 2016 10.0.14393.9339, 2019 10.0.17763.9020, 2022 10.0.20348.5386, 2025 10.0.26100.33158 17.07.2026 SB2026071705
#VU138127 - Use of Uninitialized Resource
CVE-2026-57083		 CWE-908 Low
No
No
 2012 R2 6.3.9600.23291, 2012 6.2.9200.26226, 2016 10.0.14393.9339, 2019 10.0.17763.9020, 2022 10.0.20348.5386, 2025 10.0.26100.33158 17.07.2026 SB2026071705
#VU138126 - Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')
CVE-2026-56649		 CWE-362 High
No
No
 2012 R2 6.3.9600.23291, 2012 6.2.9200.26226, 2016 10.0.14393.9339, 2019 10.0.17763.9020, 2022 10.0.20348.5386, 2025 10.0.26100.33158 17.07.2026 SB2026071705
#VU138125 - Time-of-check Time-of-use (TOCTOU) Race Condition
CVE-2026-56648		 CWE-367 Low
No
No
 2012 R2 6.3.9600.23291, 2012 6.2.9200.26226, 2016 10.0.14393.9339, 2019 10.0.17763.9020, 2022 10.0.20348.5386, 2025 10.0.26100.33158 17.07.2026 SB2026071705
#VU138124 - Integer overflow
CVE-2026-56647		 CWE-190 Low
No
No
 2012 R2 6.3.9600.23291, 2016 10.0.14393.9339, 2019 10.0.17763.9020, 2022 10.0.20348.5386, 2025 10.0.26100.33158 17.07.2026 SB2026071705
#VU138123 - Heap-based Buffer Overflow
CVE-2026-56194		 CWE-122 Medium
No
No
 2012 R2 6.3.9600.23291, 2012 6.2.9200.26226, 2016 10.0.14393.9339, 2019 10.0.17763.9020, 2022 10.0.20348.5386, 2025 10.0.26100.33158 17.07.2026 SB2026071705
#VU138122 - Integer overflow
CVE-2026-54124		 CWE-190 Low
No
No
 2012 R2 6.3.9600.23291, 2022 10.0.20348.5386, 2025 10.0.26100.33158 17.07.2026 SB2026071705
#VU138121 - Out-of-bounds read
CVE-2026-56186		 CWE-125 Low
No
No
 2012 R2 6.3.9600.23291, 2012 6.2.9200.26226, 2016 10.0.14393.9339, 2019 10.0.17763.9020, 2022 10.0.20348.5386, 2025 10.0.26100.33158 17.07.2026 SB2026071705
#VU138120 - Exposure of sensitive information to an unauthorized actor
CVE-2026-56184		 CWE-200 Low
No
No
 2012 R2 6.3.9600.23291, 2022 10.0.20348.5386, 2025 10.0.26100.33158 17.07.2026 SB2026071705
#VU138119 - Use of Uninitialized Resource
CVE-2026-56190		 CWE-908 High
No
No
 2012 R2 6.3.9600.23291, 2012 6.2.9200.26226, 2016 10.0.14393.9339, 2019 10.0.17763.9020, 2022 10.0.20348.5386, 2025 10.0.26100.33158 17.07.2026 SB2026071705
#VU138118 - Integer overflow
CVE-2026-56182		 CWE-190 Low
No
No
 2012 R2 6.3.9600.23291, 2012 6.2.9200.26226, 2016 10.0.14393.9339, 2019 10.0.17763.9020, 2022 10.0.20348.5386, 2025 10.0.26100.33158 17.07.2026 SB2026071705
#VU138117 - Heap-based Buffer Overflow
CVE-2026-56175		 CWE-122 Low
No
No
 2012 R2 6.3.9600.23291, 2012 6.2.9200.26226, 2016 10.0.14393.9339, 2019 10.0.17763.9020, 2022 10.0.20348.5386, 2025 10.0.26100.33158 17.07.2026 SB2026071705
#VU138116 - Out-of-bounds read
CVE-2026-56176		 CWE-125 Low
No
No
 2012 R2 6.3.9600.23291, 2012 6.2.9200.26226, 2016 10.0.14393.9339, 2019 10.0.17763.9020, 2022 10.0.20348.5386, 2025 10.0.26100.33158 17.07.2026 SB2026071705
#VU138115 - NULL Pointer Dereference
CVE-2026-56168		 CWE-476 Low
No
No
 2012 R2 6.3.9600.23291, 2022 10.0.20348.5386, 2025 10.0.26100.33158 17.07.2026 SB2026071705
#VU138114 - Use After Free
CVE-2026-54128		 CWE-416 Low
No
No
 2012 R2 6.3.9600.23291, 2012 6.2.9200.26226, 2016 10.0.14393.9339, 2019 10.0.17763.9020, 2022 10.0.20348.5386, 2025 10.0.26100.33158 17.07.2026 SB2026071705
#VU138113 - Use After Free
CVE-2026-50689		 CWE-416 Low
No
No
 2012 R2 6.3.9600.23291, 2019 10.0.17763.9020, 2022 10.0.20348.5386, 2025 10.0.26100.33158 17.07.2026 SB2026071705
#VU138112 - Type confusion
CVE-2026-50686		 CWE-843 High
No
No
 2012 R2 6.3.9600.23291, 2016 10.0.14393.9339, 2019 10.0.17763.9020, 2022 10.0.20348.5386, 2025 10.0.26100.33158 17.07.2026 SB2026071705
#VU138111 - Use After Free
CVE-2026-50687		 CWE-416 Low
No
No
 2012 R2 6.3.9600.23291, 2025 10.0.26100.33158 17.07.2026 SB2026071705
#VU138103 - Heap-based Buffer Overflow
CVE-2026-50683		 CWE-122 Medium
No
No
 2012 R2 6.3.9600.23291, 2012 6.2.9200.26226, 2016 10.0.14393.9339, 2019 10.0.17763.9020, 2022 10.0.20348.5386, 2025 10.0.26100.33158 17.07.2026 SB2026071705
#VU138102 - Double Free
CVE-2026-50685		 CWE-415 Medium
No
No
 2012 R2 6.3.9600.23291, 2012 6.2.9200.26226, 2016 10.0.14393.9339, 2019 10.0.17763.9020, 2022 10.0.20348.5386, 2025 10.0.26100.33158 17.07.2026 SB2026071705


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