Patch tracker / Products / Windows Server 2012 R2

Windows Server 2012 R2: vulnerabilities and security updates

Every CVE affecting Windows Server 2012 R2 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
1645
Updates (KBs)
34
Actively exploited (KEV)
39
Critical Severity
286

CVEs affecting Windows Server 2012 R2

CVESeverityCVSSEPSSStatus
CVE-2025-26633High7.059%KEVRansomware
CVE-2025-29824High7.814%KEVRansomware
CVE-2025-59287Critical9.8100%KEV
CVE-2025-33053High8.887%KEV
CVE-2025-33073High8.887%KEV
CVE-2024-49138High7.884%KEV
CVE-2024-43451Medium6.584%KEV
CVE-2024-43461High8.871%KEV
CVE-2024-38193High7.871%KEV
CVE-2024-38107High7.871%KEV
CVE-2024-38014High7.871%KEV
CVE-2024-38178High7.571%KEV
CVE-2024-43572High7.867%KEV
CVE-2025-32701High7.864%KEV
CVE-2025-32706High7.864%KEV
CVE-2025-32709High7.864%KEV
CVE-2026-20805Medium5.573%KEV
CVE-2025-30397High7.564%KEV
CVE-2024-43573Medium6.567%KEV
CVE-2024-38217Medium5.471%KEV
CVE-2025-24985High7.859%KEV
CVE-2025-24993High7.859%KEV
CVE-2025-24983High7.059%KEV
CVE-2025-24054Medium6.559%KEV
CVE-2025-24991Medium5.559%KEV
CVE-2025-24984Medium4.659%KEV
CVE-2025-21418High7.840%KEV
CVE-2026-21513High8.824%KEV
CVE-2026-21510High8.824%KEV
CVE-2026-21533High7.824%KEV
CVE-2026-21525Medium6.224%KEV
CVE-2026-85880High9.83.6%KEV
CVE-2024-38213Medium6.514%KEV
CVE-2026-68820High9.81.2%KEV
CVE-2025-24990High7.86.4%KEV
CVE-2025-59230High7.86.4%KEV
CVE-2026-56155High7.84.9%KEV
CVE-2025-47827Medium4.66.4%KEV
CVE-2026-32202Medium4.34.9%KEV
CVE-2024-43639Critical9.884%-
CVE-2024-38203Critical9.884%-
CVE-2024-49112Critical9.884%-
CVE-2025-32715High8.887%-
CVE-2025-32720High8.887%-
CVE-2025-32722High8.887%-
CVE-2025-33060High8.887%-
CVE-2025-33064High8.887%-
CVE-2025-33066High8.887%-
CVE-2025-47160High8.887%-
CVE-2025-33057High8.887%-
CVE-2025-21210Critical9.881%-
CVE-2025-21214Critical9.881%-
CVE-2025-21215Critical9.881%-
CVE-2025-21242Critical9.881%-
CVE-2025-21268Critical9.881%-
CVE-2025-21269Critical9.881%-
CVE-2025-21272Critical9.881%-
CVE-2025-21288Critical9.881%-
CVE-2025-21298Critical9.881%-
CVE-2025-21316Critical9.881%-
CVE-2025-21318Critical9.881%-
CVE-2025-21319Critical9.881%-
CVE-2025-21320Critical9.881%-
CVE-2025-21321Critical9.881%-
CVE-2025-21217Critical9.881%-
CVE-2025-21278Critical9.881%-
CVE-2025-21329Critical9.881%-
CVE-2025-21328Critical9.881%-
CVE-2025-21213Critical9.881%-
CVE-2025-21189Critical9.881%-
CVE-2025-21274Critical9.881%-
CVE-2025-21307Critical9.881%-
CVE-2025-21308Critical9.881%-
CVE-2025-21312Critical9.881%-
CVE-2025-21336Critical9.881%-
CVE-2025-21374Critical9.881%-
CVE-2025-21332Critical9.881%-
CVE-2025-49735High8.187%-
CVE-2025-33071High8.187%-
CVE-2025-33070High8.187%-
CVE-2024-43627High8.884%-
CVE-2024-43628High8.884%-
CVE-2024-43620High8.884%-
CVE-2024-43621High8.884%-
CVE-2024-43622High8.884%-
CVE-2024-43635High8.884%-
CVE-2024-49085High8.884%-
CVE-2024-49086High8.884%-
CVE-2024-49102High8.884%-
CVE-2024-49104High8.884%-
CVE-2024-49125High8.884%-
CVE-2024-49080High8.884%-
CVE-2025-32712High7.887%-
CVE-2025-32713High7.887%-
CVE-2025-32714High7.887%-
CVE-2025-32716High7.887%-
CVE-2025-32718High7.887%-
CVE-2025-33075High7.887%-
CVE-2025-32724High7.587%-
CVE-2025-33056High7.587%-
CVE-2025-33068High7.587%-
CVE-2024-49105High8.484%-
CVE-2024-49122High8.184%-
CVE-2024-49124High8.184%-
CVE-2024-49126High8.184%-
CVE-2024-49118High8.184%-
CVE-2024-49127High8.184%-
CVE-2024-49120High8.184%-
CVE-2025-21411High8.881%-
CVE-2025-21413High8.881%-
CVE-2025-21233High8.881%-
CVE-2025-21236High8.881%-
CVE-2025-21237High8.881%-
CVE-2025-21243High8.881%-
CVE-2025-21244High8.881%-
CVE-2025-21252High8.881%-
CVE-2025-21266High8.881%-
CVE-2025-21282High8.881%-
CVE-2025-21293High8.881%-
CVE-2025-21302High8.881%-
CVE-2025-21303High8.881%-
CVE-2025-21306High8.881%-
CVE-2025-21273High8.881%-
CVE-2025-21286High8.881%-
CVE-2025-21305High8.881%-
CVE-2025-21339High8.881%-
CVE-2025-21246High8.881%-
CVE-2025-21417High8.881%-
CVE-2025-21250High8.881%-
CVE-2025-21240High8.881%-
CVE-2025-21238High8.881%-
CVE-2025-21223High8.881%-
CVE-2025-21409High8.881%-
CVE-2025-21245High8.881%-
CVE-2024-43623High7.884%-
CVE-2024-43626High7.884%-
CVE-2024-43644High7.884%-
CVE-2024-49046High7.884%-
CVE-2024-43636High7.884%-
CVE-2024-43641High7.884%-
CVE-2024-49019High7.884%-
CVE-2024-49072High7.884%-
CVE-2024-49079High7.884%-
CVE-2024-49088High7.884%-
CVE-2024-49090High7.884%-
CVE-2024-43583High7.884%-
CVE-2024-43450High7.584%-
CVE-2025-3052Medium6.787%-
CVE-2024-49096High7.584%-
CVE-2024-49121High7.584%-
CVE-2024-49129High7.584%-
CVE-2024-49113High7.584%-
CVE-2025-21294High8.181%-
CVE-2025-21295High8.181%-
CVE-2025-21297High8.181%-
CVE-2025-21309High8.181%-
CVE-2024-49089High7.284%-
CVE-2024-49091High7.284%-
CVE-2025-21281High7.881%-
CVE-2025-21287High7.881%-
CVE-2025-21338High7.881%-
CVE-2025-21378High7.881%-
CVE-2024-49084High7.084%-
CVE-2024-43634Medium6.884%-
CVE-2024-43637Medium6.884%-
CVE-2024-43638Medium6.884%-
CVE-2024-43643Medium6.884%-
CVE-2024-43449Medium6.884%-
CVE-2026-20821Critical9.873%-
CVE-2026-20824Critical9.873%-
CVE-2026-20828Critical9.873%-
CVE-2026-20833Critical9.873%-
CVE-2026-20834Critical9.873%-
CVE-2026-20839Critical9.873%-
CVE-2026-20927Critical9.873%-
CVE-2026-20936Critical9.873%-
CVE-2026-21265Critical9.873%-
CVE-2024-49082Medium6.884%-
CVE-2025-21251High7.581%-
CVE-2025-21270High7.581%-
CVE-2025-21277High7.581%-
CVE-2025-21285High7.581%-
CVE-2025-21289High7.581%-
CVE-2025-21290High7.581%-
CVE-2025-21296High7.581%-
CVE-2025-21389High7.581%-
CVE-2025-21220High7.581%-
CVE-2025-21230High7.581%-
CVE-2025-21231High7.581%-
CVE-2025-21276High7.581%-
CVE-2025-21300High7.581%-
CVE-2025-21218High7.581%-
CVE-2025-21331High7.381%-
CVE-2024-38199Critical9.871%-
CVE-2024-38063Critical9.871%-
CVE-2024-38118Critical9.871%-
CVE-2024-38122Critical9.871%-
CVE-2024-38140Critical9.871%-
CVE-2024-38151Critical9.871%-
CVE-2024-38214Critical9.871%-
CVE-2024-38230Critical9.871%-
CVE-2024-38256Critical9.871%-
CVE-2024-38231Critical9.871%-
CVE-2024-38234Critical9.871%-
CVE-2024-38258Critical9.871%-
CVE-2024-43487Critical9.871%-
CVE-2025-21211Medium6.881%-
CVE-2024-7344Medium6.781%-
CVE-2025-21249Medium6.681%-
CVE-2025-21255Medium6.681%-
CVE-2025-21258Medium6.681%-
CVE-2025-21260Medium6.681%-
CVE-2025-21263Medium6.681%-
CVE-2025-21265Medium6.681%-
CVE-2025-21327Medium6.681%-
CVE-2025-21341Medium6.681%-
CVE-2025-21226Medium6.681%-
CVE-2025-21227Medium6.681%-
CVE-2025-21228Medium6.681%-
CVE-2025-21229Medium6.681%-
CVE-2025-21232Medium6.681%-
CVE-2025-21256Medium6.681%-
CVE-2025-21261Medium6.681%-
CVE-2025-21310Medium6.681%-
CVE-2025-21324Medium6.681%-
CVE-2026-20868High8.873%-
CVE-2024-38114High8.871%-
CVE-2024-38115High8.871%-
CVE-2024-38116High8.871%-
CVE-2024-38121High8.871%-
CVE-2024-38128High8.871%-
CVE-2024-38130High8.871%-
CVE-2024-38131High8.871%-
CVE-2024-38144High8.871%-
CVE-2024-38154High8.871%-
CVE-2024-38180High8.871%-
CVE-2024-38120High8.871%-
CVE-2024-38260High8.871%-
CVE-2024-43455High8.871%-
CVE-2026-20856High8.173%-
CVE-2026-20931High8.073%-
CVE-2023-31096High7.873%-
CVE-2024-55414High7.873%-
CVE-2026-20809High7.873%-
CVE-2026-20816High7.873%-
CVE-2026-20820High7.873%-
CVE-2026-20831High7.873%-
CVE-2026-20840High7.873%-
CVE-2026-20843High7.873%-
CVE-2026-20860High7.873%-

Showing the 250 highest-risk of 1645 CVEs. See all in the CVE reference.

Updates (KBs) for Windows Server 2012 R2

UpdateReleasedSeverityCVSSEPSSCVEsStatus
KB50538872025-03-11High8.859%25KEVRansomware
KB50555572025-04-08High8.814%57KEVRansomware
KB50708862025-10-14Critical9.8100%1KEV
KB50466822024-11-12Critical9.884%22KEV
KB50487352024-12-10Critical9.884%27KEV
KB50610182025-07-08High8.887%23KEV
KB50418282024-08-13Critical9.871%38KEV
KB50443432024-10-08Critical9.067%49KEV
KB50431382024-09-10High8.854%23KEV
KB50520422025-02-11High8.840%23KEV
KB50417702024-08-13High7.541%1KEV
KB50584032025-06-10High8.830%34KEV
KB50759702026-02-10High8.824%15KEV
KB50736962026-01-13High8.820%37KEV
KB50994442026-07-14Critical9.94.9%185KEV
KB51230662026-09-08Critical9.83.6%418KEV
KB50668732025-10-14High8.86.4%50KEV
KB50392942024-08-13Medium6.514%1KEV
KB51203852026-08-11Critical9.81.2%144KEV
KB50500482025-01-14Critical9.881%96-
KB50639502025-08-12Critical9.848%47-
KB50625972025-08-12Critical9.833%63-
KB50655072025-09-09High8.820%35-
KB50689052025-12-09Critical9.85.9%18-
KB50940412026-08-11Critical9.82.3%68-
KB50874712026-05-12Critical9.81.2%42-
KB50787742026-03-10High8.84.7%32-
KB50715032025-12-09High8.82.2%11-
KB50821262026-04-14High8.82.0%61-
KB50404562024-08-13High7.80.5%1-
KB50828062026-04-14High7.80.4%1-
KB50940062026-06-09High7.80.3%1-
KB50994152026-07-14High7.80.3%1-
KB50787382026-03-10High7.51.2%1-

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 KB5120708: patch details KB5123099 install notes and severity KB5122871 install notes and severity KB5120238 install notes and severity KB5122878: patch details KB5129235 download and what it fixes KB5120994 install notes and severity
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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