Patch tracker / Products / Windows Server, version 2004

Windows Server, version 2004: vulnerabilities and security updates

Every CVE affecting Windows Server, version 2004 and the Microsoft update (KB) that fixes it, ranked by real-world risk. Actively exploited (CISA KEV) first, then EPSS exploit probability, on top of CVSS severity.

CVEs
148
Updates (KBs)
1
Actively exploited (KEV)
0
Critical Severity
5

CVEs affecting Windows Server, version 2004

CVESeverityCVSSEPSSStatus
CVE-2025-54518High9.84.9%-
CVE-2026-44815Critical9.82.6%-
CVE-2026-47291Critical9.82.6%-
CVE-2026-42904Critical9.62.6%-
CVE-2025-10263Critical9.32.6%-
CVE-2026-45602Critical9.12.6%-
CVE-2026-42985High8.82.6%-
CVE-2026-47289High8.82.6%-
CVE-2026-47653High8.82.6%-
CVE-2026-34329High8.82.3%-
CVE-2026-40403High8.82.3%-
CVE-2026-45607High8.42.6%-
CVE-2026-45641High8.42.6%-
CVE-2026-45599High8.12.6%-
CVE-2026-45635High8.12.6%-
CVE-2026-40415High8.12.3%-
CVE-2026-45588High7.92.6%-
CVE-2026-47656High7.92.6%-
CVE-2026-48568High7.92.6%-
CVE-2026-48570High7.92.6%-
CVE-2026-48573High7.92.6%-
CVE-2026-48575High7.92.6%-
CVE-2026-48576High7.92.6%-
CVE-2026-48578High7.92.6%-
CVE-2026-33828High7.82.6%-
CVE-2026-40404High7.82.6%-
CVE-2026-40409High7.82.6%-
CVE-2026-41092High7.82.6%-
CVE-2026-42828High7.82.6%-
CVE-2026-42837High7.82.6%-
CVE-2026-42905High7.82.6%-
CVE-2026-42916High7.82.6%-
CVE-2026-42977High7.82.6%-
CVE-2026-42978High7.82.6%-
CVE-2026-42979High7.82.6%-
CVE-2026-42980High7.82.6%-
CVE-2026-42983High7.82.6%-
CVE-2026-42986High7.82.6%-
CVE-2026-42989High7.82.6%-
CVE-2026-42991High7.82.6%-
CVE-2026-44802High7.82.6%-
CVE-2026-44803High7.82.6%-
CVE-2026-44812High7.82.6%-
CVE-2026-45487High7.82.6%-
CVE-2026-45586High7.82.6%-
CVE-2026-45592High7.82.6%-
CVE-2026-45593High7.82.6%-
CVE-2026-45605High7.82.6%-
CVE-2026-45636High7.82.6%-
CVE-2026-45637High7.82.6%-
CVE-2026-45638High7.82.6%-
CVE-2026-45656High7.82.6%-
CVE-2026-45658High7.82.6%-
CVE-2026-48574High7.82.6%-
CVE-2026-48583High7.82.6%-
CVE-2026-8863High7.82.6%-
CVE-2026-33834High7.82.3%-
CVE-2026-33835High7.82.3%-
CVE-2026-33837High7.82.3%-
CVE-2026-33838High7.82.3%-
CVE-2026-33841High7.82.3%-
CVE-2026-34330High7.82.3%-
CVE-2026-34333High7.82.3%-
CVE-2026-34334High7.82.3%-
CVE-2026-34336High7.82.3%-
CVE-2026-34337High7.82.3%-
CVE-2026-34338High7.82.3%-
CVE-2026-34343High7.82.3%-
CVE-2026-34344High7.82.3%-
CVE-2026-34351High7.82.3%-
CVE-2026-35415High7.82.3%-
CVE-2026-35417High7.82.3%-
CVE-2026-35418High7.82.3%-
CVE-2026-35421High7.82.3%-
CVE-2026-40377High7.82.3%-
CVE-2026-40382High7.82.3%-
CVE-2026-40397High7.82.3%-
CVE-2026-40398High7.82.3%-
CVE-2026-40399High7.82.3%-
CVE-2026-40407High7.82.3%-
CVE-2026-40408High7.82.3%-
CVE-2026-41088High7.82.3%-
CVE-2026-42825High7.04.9%-
CVE-2026-42908High7.52.6%-
CVE-2026-42909High7.52.6%-
CVE-2026-42992High7.52.6%-
CVE-2026-42993High7.52.6%-
CVE-2026-44799High7.52.6%-
CVE-2026-44801High7.52.6%-
CVE-2026-45639High7.52.6%-
CVE-2026-48563High7.52.6%-
CVE-2026-49160High7.52.6%-
CVE-2026-32161High7.52.3%-
CVE-2026-35424High7.52.3%-
CVE-2026-40406High7.52.3%-
CVE-2026-40413High7.42.3%-
CVE-2026-40414High7.42.3%-
CVE-2026-40401High7.12.3%-
CVE-2026-34335High7.02.6%-
CVE-2026-41108High7.02.6%-
CVE-2026-42836High7.02.6%-
CVE-2026-42911High7.02.6%-
CVE-2026-42912High7.02.6%-
CVE-2026-42984High7.02.6%-
CVE-2026-45596High7.02.6%-
CVE-2026-45598High7.02.6%-
CVE-2026-45601High7.02.6%-
CVE-2026-45603High7.02.6%-
CVE-2026-45640High7.02.6%-
CVE-2026-45653High7.02.6%-
CVE-2026-47648High7.02.6%-
CVE-2026-33839High7.02.3%-
CVE-2026-34331High7.02.3%-
CVE-2026-34340High7.02.3%-
CVE-2026-34341High7.02.3%-
CVE-2026-34342High7.02.3%-
CVE-2026-34345High7.02.3%-
CVE-2026-34347High7.02.3%-
CVE-2026-35416High7.02.3%-
CVE-2026-40410High7.02.3%-
CVE-2026-45608Medium6.82.6%-
CVE-2026-50507Medium6.82.6%-
CVE-2026-21530Medium6.72.3%-
CVE-2026-32170Medium6.72.3%-
CVE-2026-41097Medium6.72.3%-
CVE-2026-42903Medium6.52.6%-
CVE-2026-42907Medium6.52.6%-
CVE-2026-50508Medium6.52.3%-
CVE-2026-35422Medium6.52.3%-
CVE-2026-40380Medium6.22.3%-
CVE-2026-42906Medium5.52.6%-
CVE-2026-42915Medium5.52.6%-
CVE-2026-42968Medium5.52.6%-
CVE-2026-42969Medium5.52.6%-
CVE-2026-42970Medium5.52.6%-
CVE-2026-42971Medium5.52.6%-
CVE-2026-42972Medium5.52.6%-
CVE-2026-42973Medium5.52.6%-
CVE-2026-45594Medium5.52.6%-
CVE-2026-45606Medium5.52.6%-
CVE-2026-45634Medium5.52.6%-
CVE-2026-34339Medium5.52.3%-
CVE-2026-45595Medium5.42.6%-
CVE-2026-35423Medium5.42.3%-
CVE-2026-42914Medium5.32.6%-
CVE-2026-45655Medium5.32.6%-
CVE-2026-32209Medium4.42.3%-
CVE-2026-45642Low3.92.6%-

Updates (KBs) for Windows Server, version 2004

UpdateReleasedSeverityCVSSEPSSCVEsStatus
KB50941272026-06-09Critical9.82.3%148-

Ranked across all products on the Microsoft patch tracker and the CVE and vulnerability management reference. Browse every product: product index.

Most searched on Senserva right now

KB5122876 install notes and severity KB5126052: the full CVE list KB5122882: patch details KB5123099: the full CVE list KB5129235 download and what it fixes KB5122871 install notes and severity KB5129238: the full CVE list KB5120708: patch details KB5129241: patch details KB5129239: the full CVE list
New to a term on this page? CVE, KB, KEV, CVSS, and EPSS are each explained once, on the Senserva security lexicon. Reference: Microsoft CVE and vulnerability management and the Microsoft patching guide.
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