Patch tracker / KB5124008

KB5124008: Windows Server 2019 Security Update (September 2026)

KB5124008 is a Critical security update for Windows Server 2019, released 2026-09-08. It closes 628 CVEs with a maximum CVSS of 9.8. It is the third largest of the 60 updates Microsoft shipped that month, by CVEs closed.

Update summary

Critical
2026-09-08
Released
628
CVEs fixed
9.8
Max CVSS v3
Critical
Severity
Deploy this cycle
Fixes 628 CVEs for Windows Server 2019. No confirmed in-the-wild exploitation in this set today.

Fixes 628 CVEs. Most severe CVSS 9.8 (Critical).

Microsoft Update Catalog: download KB5124008Microsoft support article
Senserva AI Opinion and rich prompt for KB5124008

Copy this prompt into Claude, ChatGPT, or Copilot. The facts are included, sourced from this page.

Full tracking and change history for KB5124008

Released
2026-09-08
Last changed
2026-09-08
Changes tracked
1

Senserva began recording day-to-day change history on 2026-07-07, and refreshes it several times a day. Release dates are historical where Microsoft publishes them; revision history is tracked from that date forward, so it does not include changes made before then.

Check if KB5124008 is installed

Elevated PowerShell. No output means it is not installed.

CVEs fixed by this update

Sorted exploited-first, then by CVSS. Every CVE links to its Senserva page with the full risk facts, references, and a ready-to-paste AI prompt.

CVESeverityCVSSEPSSExploited
CVE-2026-68839Critical9.8-No
CVE-2026-68849Critical9.8-No
CVE-2026-68891Critical9.8-No
CVE-2026-69276Critical9.8-No
CVE-2026-69316Critical9.8-No
CVE-2026-69381Critical9.8-No
CVE-2026-69408Critical9.8-No
CVE-2026-69425Critical9.8-No
CVE-2026-69431Critical9.8-No
CVE-2026-69463Critical9.8-No
CVE-2026-69474Critical9.8-No
CVE-2026-69483Critical9.8-No
CVE-2026-69491Critical9.8-No
CVE-2026-69493Critical9.8-No
CVE-2026-69496Critical9.8-No
CVE-2026-69525Critical9.8-No
CVE-2026-69548Critical9.8-No
CVE-2026-69579Critical9.8-No
CVE-2026-69586Critical9.8-No
CVE-2026-69590Critical9.8-No
CVE-2026-69713Critical9.8-No
CVE-2026-69715Critical9.8-No
CVE-2026-69768Critical9.8-No
CVE-2026-69769Critical9.8-No
CVE-2026-69771Critical9.8-No
CVE-2026-69792Critical9.8-No
CVE-2026-69819Critical9.8-No
CVE-2026-69824Critical9.8-No
CVE-2026-69829Critical9.8-No
CVE-2026-69853Critical9.8-No
CVE-2026-69895Critical9.8-No
CVE-2026-69910Critical9.8-No
CVE-2026-70296Critical9.8-No
CVE-2026-70575Critical9.8-No
CVE-2026-72931Critical9.8-No
CVE-2026-72980Critical9.8-No
CVE-2026-72982Critical9.8-No
CVE-2026-72983Critical9.8-No
CVE-2026-73009Critical9.8-No
CVE-2026-73019Critical9.8-No
CVE-2026-77493Critical9.8-No
CVE-2026-78446Critical9.8-No
CVE-2026-78452Critical9.8-No
CVE-2026-78455Critical9.8-No
CVE-2026-78508Critical9.8-No
CVE-2026-78516Critical9.8-No
CVE-2026-62706High8.8-No
CVE-2026-62744High8.8-No
CVE-2026-68828High8.8-No
CVE-2026-69291High8.8-No
CVE-2026-69334High8.8-No
CVE-2026-69360High8.8-No
CVE-2026-69386High8.8-No
CVE-2026-69434High8.8-No
CVE-2026-69461High8.8-No
CVE-2026-69485High8.8-No
CVE-2026-69494High8.8-No
CVE-2026-69495High8.8-No
CVE-2026-69499High8.8-No
CVE-2026-69511High8.8-No
CVE-2026-69518High8.8-No
CVE-2026-69598High8.8-No
CVE-2026-69601High8.8-No
CVE-2026-69603High8.8-No
CVE-2026-69628High8.8-No
CVE-2026-69669High8.8-No
CVE-2026-69676High8.8-No
CVE-2026-69729High8.8-No
CVE-2026-69740High8.8-No
CVE-2026-69772High8.8-No
CVE-2026-69784High8.8-No
CVE-2026-69860High8.8-No
CVE-2026-70203High8.8-No
CVE-2026-70586High8.8-No
CVE-2026-71352High8.8-No
CVE-2026-72933High8.8-No
CVE-2026-72940High8.8-No
CVE-2026-72950High8.8-No
CVE-2026-72959High8.8-No
CVE-2026-72960High8.8-No
CVE-2026-72986High8.8-No
CVE-2026-73006High8.8-No
CVE-2026-73012High8.8-No
CVE-2026-73013High8.8-No
CVE-2026-73016High8.8-No
CVE-2026-73018High8.8-No
CVE-2026-73023High8.8-No
CVE-2026-77495High8.8-No
CVE-2026-77504High8.8-No
CVE-2026-80083High8.8-No
CVE-2026-80096High8.8-No
CVE-2026-81955High8.8-No
CVE-2026-83992High8.8-No
CVE-2026-83996High8.8-No
CVE-2026-83998High8.8-No
CVE-2026-85877High8.8-No
CVE-2026-69479High8.4-No
CVE-2026-69638High8.4-No
CVE-2026-77503High8.4-No
CVE-2026-69820High8.2-No
CVE-2026-69846High8.2-No
CVE-2026-69874High8.2-No
CVE-2026-69906High8.2-No
CVE-2026-72958High8.2-No
CVE-2026-72961High8.2-No
CVE-2026-72962High8.2-No
CVE-2026-81354High8.2-No
CVE-2026-69325High8.1-No
CVE-2026-69438High8.1-No
CVE-2026-69524High8.1-No
CVE-2026-69546High8.1-No
CVE-2026-69732High8.1-No
CVE-2026-69786High8.1-No
CVE-2026-70342High8.1-No
CVE-2026-70563High8.1-No
CVE-2026-72936High8.1-No
CVE-2026-72981High8.1-No
CVE-2026-78449High8.1-No
CVE-2026-83997High8.1-No
CVE-2026-68827High8.0-No
CVE-2026-68834High8.0-No
CVE-2026-68838High8.0-No
CVE-2026-68876High8.0-No
CVE-2026-68878High8.0-No
CVE-2026-68880High8.0-No
CVE-2026-68894High8.0-No
CVE-2026-69271High8.0-No
CVE-2026-69301High8.0-No
CVE-2026-69322High8.0-No
CVE-2026-69332High8.0-No
CVE-2026-69346High8.0-No
CVE-2026-69365High8.0-No
CVE-2026-69371High8.0-No
CVE-2026-69418High8.0-No
CVE-2026-69423High8.0-No
CVE-2026-69427High8.0-No
CVE-2026-69458High8.0-No
CVE-2026-69462High8.0-No
CVE-2026-69481High8.0-No
CVE-2026-69503High8.0-No
CVE-2026-69505High8.0-No
CVE-2026-69512High8.0-No
CVE-2026-69619High8.0-No
CVE-2026-69623High8.0-No
CVE-2026-69625High8.0-No
CVE-2026-69643High8.0-No
CVE-2026-69681High8.0-No
CVE-2026-69689High8.0-No
CVE-2026-69714High8.0-No
CVE-2026-69717High8.0-No
CVE-2026-69727High8.0-No
CVE-2026-69762High8.0-No
CVE-2026-69773High8.0-No
CVE-2026-69777High8.0-No
CVE-2026-69807High8.0-No
CVE-2026-69826High8.0-No
CVE-2026-69847High8.0-No
CVE-2026-69875High8.0-No
CVE-2026-56172High7.8-No
CVE-2026-56177High7.8-No
CVE-2026-56198High7.8-No
CVE-2026-62697High7.8-No
CVE-2026-62810High7.8-No
CVE-2026-68832High7.8-No
CVE-2026-68841High7.8-No
CVE-2026-68844High7.8-No
CVE-2026-68845High7.8-No
CVE-2026-68848High7.8-No
CVE-2026-68850High7.8-No
CVE-2026-68875High7.8-No
CVE-2026-68877High7.8-No
CVE-2026-68885High7.8-No
CVE-2026-68888High7.8-No
CVE-2026-68890High7.8-No
CVE-2026-68892High7.8-No
CVE-2026-68896High7.8-No
CVE-2026-69265High7.8-No
CVE-2026-69269High7.8-No
CVE-2026-69270High7.8-No
CVE-2026-69277High7.8-No
CVE-2026-69283High7.8-No
CVE-2026-69284High7.8-No
CVE-2026-69289High7.8-No
CVE-2026-69290High7.8-No
CVE-2026-69293High7.8-No
CVE-2026-69295High7.8-No
CVE-2026-69298High7.8-No
CVE-2026-69307High7.8-No
CVE-2026-69312High7.8-No
CVE-2026-69323High7.8-No
CVE-2026-69324High7.8-No
CVE-2026-69328High7.8-No
CVE-2026-69348High7.8-No
CVE-2026-69352High7.8-No
CVE-2026-69359High7.8-No
CVE-2026-69368High7.8-No
CVE-2026-69377High7.8-No
CVE-2026-69389High7.8-No
CVE-2026-69391High7.8-No
CVE-2026-69392High7.8-No
CVE-2026-69407High7.8-No
CVE-2026-69420High7.8-No
CVE-2026-69421High7.8-No
CVE-2026-69424High7.8-No
CVE-2026-69426High7.8-No
CVE-2026-69432High7.8-No
CVE-2026-69433High7.8-No
CVE-2026-69436High7.8-No
CVE-2026-69444High7.8-No
CVE-2026-69445High7.8-No
CVE-2026-69447High7.8-No
CVE-2026-69450High7.8-No
CVE-2026-69455High7.8-No
CVE-2026-69456High7.8-No
CVE-2026-69459High7.8-No
CVE-2026-69467High7.8-No
CVE-2026-69475High7.8-No
CVE-2026-69476High7.8-No
CVE-2026-69478High7.8-No
CVE-2026-69480High7.8-No
CVE-2026-69489High7.8-No
CVE-2026-69508High7.8-No
CVE-2026-69509High7.8-No
CVE-2026-69513High7.8-No
CVE-2026-69528High7.8-No
CVE-2026-69532High7.8-No
CVE-2026-69534High7.8-No
CVE-2026-69535High7.8-No
CVE-2026-69538High7.8-No
CVE-2026-69541High7.8-No
CVE-2026-69542High7.8-No
CVE-2026-69561High7.8-No
CVE-2026-69571High7.8-No
CVE-2026-69576High7.8-No
CVE-2026-69580High7.8-No
CVE-2026-69582High7.8-No
CVE-2026-69583High7.8-No
CVE-2026-69584High7.8-No
CVE-2026-69585High7.8-No
CVE-2026-69589High7.8-No
CVE-2026-69592High7.8-No
CVE-2026-69593High7.8-No
CVE-2026-69594High7.8-No
CVE-2026-69604High7.8-No
CVE-2026-69608High7.8-No
CVE-2026-69612High7.8-No
CVE-2026-69685High7.8-No
CVE-2026-69687High7.8-No
CVE-2026-69691High7.8-No
CVE-2026-69707High7.8-No
CVE-2026-69709High7.8-No
CVE-2026-69720High7.8-No
CVE-2026-69725High7.8-No
CVE-2026-69731High7.8-No
CVE-2026-69738High7.8-No
CVE-2026-69758High7.8-No
CVE-2026-69785High7.8-No
CVE-2026-69787High7.8-No
CVE-2026-69790High7.8-No
CVE-2026-69799High7.8-No
CVE-2026-69801High7.8-No
CVE-2026-69822High7.8-No
CVE-2026-69841High7.8-No
CVE-2026-69844High7.8-No
CVE-2026-69864High7.8-No
CVE-2026-69900High7.8-No
CVE-2026-69907High7.8-No
CVE-2026-69921High7.8-No
CVE-2026-70289High7.8-No
CVE-2026-70564High7.8-No
CVE-2026-70569High7.8-No
CVE-2026-70572High7.8-No
CVE-2026-70574High7.8-No
CVE-2026-70581High7.8-No
CVE-2026-70583High7.8-No
CVE-2026-70584High7.8-No
CVE-2026-71334High7.8-No
CVE-2026-71337High7.8-No
CVE-2026-71343High7.8-No
CVE-2026-71345High7.8-No
CVE-2026-72929High7.8-No
CVE-2026-72941High7.8-No
CVE-2026-72944High7.8-No
CVE-2026-72946High7.8-No
CVE-2026-72953High7.8-No
CVE-2026-72965High7.8-No
CVE-2026-72967High7.8-No
CVE-2026-72988High7.8-No
CVE-2026-72990High7.8-No
CVE-2026-72991High7.8-No
CVE-2026-72992High7.8-No
CVE-2026-72993High7.8-No
CVE-2026-72994High7.8-No
CVE-2026-72995High7.8-No
CVE-2026-72996High7.8-No
CVE-2026-72997High7.8-No
CVE-2026-73000High7.8-No
CVE-2026-73001High7.8-No
CVE-2026-73002High7.8-No
CVE-2026-73007High7.8-No
CVE-2026-73011High7.8-No
CVE-2026-73014High7.8-No
CVE-2026-73015High7.8-No
CVE-2026-73020High7.8-No
CVE-2026-73021High7.8-No
CVE-2026-73024High7.8-No
CVE-2026-73026High7.8-No
CVE-2026-77489High7.8-No
CVE-2026-77500High7.8-No
CVE-2026-77904High7.8-No
CVE-2026-78447High7.8-No
CVE-2026-78448High7.8-No
CVE-2026-80075High7.8-No
CVE-2026-81963High7.8-No
CVE-2026-83498High7.8-No
CVE-2026-83942High7.8-No
CVE-2026-83952High7.8-No
CVE-2026-83954High7.8-No
CVE-2026-83955High7.8-No
CVE-2026-83967High7.8-No
CVE-2026-83968High7.8-No
CVE-2026-83969High7.8-No
CVE-2026-83970High7.8-No
CVE-2026-83971High7.8-No
CVE-2026-83972High7.8-No
CVE-2026-83973High7.8-No
CVE-2026-83974High7.8-No
CVE-2026-83975High7.8-No
CVE-2026-83976High7.8-No
CVE-2026-83977High7.8-No
CVE-2026-83978High7.8-No
CVE-2026-83979High7.8-No
CVE-2026-83980High7.8-No
CVE-2026-83981High7.8-No
CVE-2026-83982High7.8-No
CVE-2026-83983High7.8-No
CVE-2026-83985High7.8-No
CVE-2026-83986High7.8-No
CVE-2026-83987High7.8-No
CVE-2026-83988High7.8-No
CVE-2026-83990High7.8-No
CVE-2026-83995High7.8-No
CVE-2026-84000High7.8-No
CVE-2026-62759High7.5-No
CVE-2026-62813High7.5-No
CVE-2026-68887High7.5-No
CVE-2026-69329High7.5-No
CVE-2026-69397High7.5-No
CVE-2026-69428High7.5-No
CVE-2026-69429High7.5-No
CVE-2026-69514High7.5-No
CVE-2026-69539High7.5-No
CVE-2026-69587High7.5-No
CVE-2026-69588High7.5-No
CVE-2026-69599High7.5-No
CVE-2026-69710High7.5-No
CVE-2026-69744High7.5-No
CVE-2026-69760High7.5-No
CVE-2026-69793High7.5-No
CVE-2026-69809High7.5-No
CVE-2026-69852High7.5-No
CVE-2026-69881High7.5-No
CVE-2026-69890High7.5-No
CVE-2026-70570High7.5-No
CVE-2026-70579High7.5-No
CVE-2026-70587High7.5-No
CVE-2026-71330High7.5-No
CVE-2026-72932High7.5-No
CVE-2026-72949High7.5-No
CVE-2026-73017High7.5-No
CVE-2026-81355High7.5-No
CVE-2026-83989High7.5-No
CVE-2026-84001High7.5-No
CVE-2026-69347High7.4-No
CVE-2026-68835High7.1-No
CVE-2026-68846High7.1-No
CVE-2026-68889High7.1-No
CVE-2026-69272High7.1-No
CVE-2026-69274High7.1-No
CVE-2026-69296High7.1-No
CVE-2026-69305High7.1-No
CVE-2026-69313High7.1-No
CVE-2026-69314High7.1-No
CVE-2026-69336High7.1-No
CVE-2026-69337High7.1-No
CVE-2026-69340High7.1-No
CVE-2026-69358High7.1-No
CVE-2026-69364High7.1-No
CVE-2026-69366High7.1-No
CVE-2026-69384High7.1-No
CVE-2026-69396High7.1-No
CVE-2026-69451High7.1-No
CVE-2026-69460High7.1-No
CVE-2026-69482High7.1-No
CVE-2026-69536High7.1-No
CVE-2026-69553High7.1-No
CVE-2026-69597High7.1-No
CVE-2026-69602High7.1-No
CVE-2026-69688High7.1-No
CVE-2026-69706High7.1-No
CVE-2026-69757High7.1-No
CVE-2026-69761High7.1-No
CVE-2026-50349High7.0-No
CVE-2026-62694High7.0-No
CVE-2026-68824High7.0-No
CVE-2026-68825High7.0-No
CVE-2026-68837High7.0-No
CVE-2026-68840High7.0-No
CVE-2026-68847High7.0-No
CVE-2026-68884High7.0-No
CVE-2026-68897High7.0-No
CVE-2026-69275High7.0-No
CVE-2026-69279High7.0-No
CVE-2026-69280High7.0-No
CVE-2026-69281High7.0-No
CVE-2026-69287High7.0-No
CVE-2026-69299High7.0-No
CVE-2026-69300High7.0-No
CVE-2026-69309High7.0-No
CVE-2026-69310High7.0-No
CVE-2026-69311High7.0-No
CVE-2026-69319High7.0-No
CVE-2026-69331High7.0-No
CVE-2026-69333High7.0-No
CVE-2026-69335High7.0-No
CVE-2026-69341High7.0-No
CVE-2026-69362High7.0-No
CVE-2026-69379High7.0-No
CVE-2026-69383High7.0-No
CVE-2026-69385High7.0-No
CVE-2026-69388High7.0-No
CVE-2026-69394High7.0-No
CVE-2026-69398High7.0-No
CVE-2026-69401High7.0-No
CVE-2026-69404High7.0-No
CVE-2026-69413High7.0-No
CVE-2026-69422High7.0-No
CVE-2026-69430High7.0-No
CVE-2026-69440High7.0-No
CVE-2026-69441High7.0-No
CVE-2026-69448High7.0-No
CVE-2026-69466High7.0-No
CVE-2026-69468High7.0-No
CVE-2026-69470High7.0-No
CVE-2026-69472High7.0-No
CVE-2026-69473High7.0-No
CVE-2026-69488High7.0-No
CVE-2026-69492High7.0-No
CVE-2026-69498High7.0-No
CVE-2026-69500High7.0-No
CVE-2026-69501High7.0-No
CVE-2026-69516High7.0-No
CVE-2026-69517High7.0-No
CVE-2026-69540High7.0-No
CVE-2026-69549High7.0-No
CVE-2026-69560High7.0-No
CVE-2026-69563High7.0-No
CVE-2026-69567High7.0-No
CVE-2026-69573High7.0-No
CVE-2026-69574High7.0-No
CVE-2026-69575High7.0-No
CVE-2026-69578High7.0-No
CVE-2026-69581High7.0-No
CVE-2026-69600High7.0-No
CVE-2026-69605High7.0-No
CVE-2026-69606High7.0-No
CVE-2026-69610High7.0-No
CVE-2026-69611High7.0-No
CVE-2026-69613High7.0-No
CVE-2026-69621High7.0-No
CVE-2026-69630High7.0-No
CVE-2026-69645High7.0-No
CVE-2026-69648High7.0-No
CVE-2026-69652High7.0-No
CVE-2026-69654High7.0-No
CVE-2026-69682High7.0-No
CVE-2026-69692High7.0-No
CVE-2026-69693High7.0-No
CVE-2026-69694High7.0-No
CVE-2026-69708High7.0-No
CVE-2026-69711High7.0-No
CVE-2026-69735High7.0-No
CVE-2026-69779High7.0-No
CVE-2026-69791High7.0-No
CVE-2026-69814High7.0-No
CVE-2026-69816High7.0-No
CVE-2026-69817High7.0-No
CVE-2026-69818High7.0-No
CVE-2026-69834High7.0-No
CVE-2026-69838High7.0-No
CVE-2026-69859High7.0-No
CVE-2026-69866High7.0-No
CVE-2026-69889High7.0-No
CVE-2026-69891High7.0-No
CVE-2026-69896High7.0-No
CVE-2026-69911High7.0-No
CVE-2026-70283High7.0-No
CVE-2026-70562High7.0-No
CVE-2026-70565High7.0-No
CVE-2026-70567High7.0-No
CVE-2026-70568High7.0-No
CVE-2026-70573High7.0-No
CVE-2026-70577High7.0-No
CVE-2026-70578High7.0-No
CVE-2026-71332High7.0-No
CVE-2026-71333High7.0-No
CVE-2026-71340High7.0-No
CVE-2026-71342High7.0-No
CVE-2026-71351High7.0-No
CVE-2026-71353High7.0-No
CVE-2026-72926High7.0-No
CVE-2026-72930High7.0-No
CVE-2026-72952High7.0-No
CVE-2026-72963High7.0-No
CVE-2026-73003High7.0-No
CVE-2026-73005High7.0-No
CVE-2026-73022High7.0-No
CVE-2026-77894High7.0-No
CVE-2026-77899High7.0-No
CVE-2026-77905High7.0-No
CVE-2026-78457High7.0-No
CVE-2026-78464High7.0-No
CVE-2026-80093High7.0-No
CVE-2026-83940High7.0-No
CVE-2026-83999High7.0-No
CVE-2026-85360High7.0-No
CVE-2026-68833Medium6.8-No
CVE-2026-69490Medium6.8-No
CVE-2026-69566Medium6.8-No
CVE-2026-71329Medium6.8-No
CVE-2026-71348Medium6.8-No
CVE-2026-71349Medium6.8-No
CVE-2026-71350Medium6.8-No
CVE-2026-72985Medium6.8-No
CVE-2026-72999Medium6.8-No
CVE-2026-77892Medium6.8-No
CVE-2026-78451Medium6.8-No
CVE-2026-69350Medium6.7-No
CVE-2026-69373Medium6.7-No
CVE-2026-69449Medium6.7-No
CVE-2026-71339Medium6.7-No
CVE-2026-72927Medium6.7-No
CVE-2026-72935Medium6.7-No
CVE-2026-69469Medium6.6-No
CVE-2026-62762Medium6.5-No
CVE-2026-62801Medium6.5-No
CVE-2026-68898Medium6.5-No
CVE-2026-69267Medium6.5-No
CVE-2026-69374Medium6.5-No
CVE-2026-69781Medium6.5-No
CVE-2026-70019Medium6.5-No
CVE-2026-72939Medium6.5-No
CVE-2026-72942Medium6.5-No
CVE-2026-77896Medium6.5-No
CVE-2026-78453Medium6.5-No
CVE-2026-70582Medium6.4-No
CVE-2026-72947Medium6.4-No
CVE-2026-68874Medium5.7-No
CVE-2026-69317Medium5.7-No
CVE-2026-69349Medium5.7-No
CVE-2026-69393Medium5.7-No
CVE-2026-69507Medium5.7-No
CVE-2026-69552Medium5.7-No
CVE-2026-69569Medium5.7-No
CVE-2026-69572Medium5.7-No
CVE-2026-69591Medium5.7-No
CVE-2026-69723Medium5.7-No
CVE-2026-69832Medium5.6-No
CVE-2026-68830Medium5.5-No
CVE-2026-68831Medium5.5-No
CVE-2026-68842Medium5.5-No
CVE-2026-68843Medium5.5-No
CVE-2026-68851Medium5.5-No
CVE-2026-68852Medium5.5-No
CVE-2026-68873Medium5.5-No
CVE-2026-68881Medium5.5-No
CVE-2026-68886Medium5.5-No
CVE-2026-68895Medium5.5-No
CVE-2026-69286Medium5.5-No
CVE-2026-69288Medium5.5-No
CVE-2026-69294Medium5.5-No
CVE-2026-69303Medium5.5-No
CVE-2026-69308Medium5.5-No
CVE-2026-69315Medium5.5-No
CVE-2026-69318Medium5.5-No
CVE-2026-69321Medium5.5-No
CVE-2026-69339Medium5.5-No
CVE-2026-69343Medium5.5-No
CVE-2026-69344Medium5.5-No
CVE-2026-69345Medium5.5-No
CVE-2026-69351Medium5.5-No
CVE-2026-69353Medium5.5-No
CVE-2026-69367Medium5.5-No
CVE-2026-69376Medium5.5-No
CVE-2026-69390Medium5.5-No
CVE-2026-69403Medium5.5-No
CVE-2026-69406Medium5.5-No
CVE-2026-69453Medium5.5-No
CVE-2026-69457Medium5.5-No
CVE-2026-69504Medium5.5-No
CVE-2026-69527Medium5.5-No
CVE-2026-69531Medium5.5-No
CVE-2026-69554Medium5.5-No
CVE-2026-69568Medium5.5-No
CVE-2026-69609Medium5.5-No
CVE-2026-69616Medium5.5-No
CVE-2026-69618Medium5.5-No
CVE-2026-69627Medium5.5-No
CVE-2026-69674Medium5.5-No
CVE-2026-69684Medium5.5-No
CVE-2026-69741Medium5.5-No
CVE-2026-69770Medium5.5-No
CVE-2026-69794Medium5.5-No
CVE-2026-69808Medium5.5-No
CVE-2026-69862Medium5.5-No
CVE-2026-70145Medium5.5-No
CVE-2026-70290Medium5.5-No
CVE-2026-71341Medium5.5-No
CVE-2026-72937Medium5.5-No
CVE-2026-72964Medium5.5-No
CVE-2026-72966Medium5.5-No
CVE-2026-73004Medium5.5-No
CVE-2026-73008Medium5.5-No
CVE-2026-77491Medium5.5-No
CVE-2026-77492Medium5.5-No
CVE-2026-78454Medium5.5-No
CVE-2026-83501Medium5.5-No
CVE-2026-83991Medium5.5-No

What the press says about this update

Trusted-source coverage of the CVEs this update fixes, pulled live from their own feeds.

“Microsoft’s September 2026 Patch Tuesday addresses 964 CVEs (CVE-2026-81963, CVE-2026-85880)” Tenable, 2026-09-08
“The September 2026 Security Update Review” Zero Day Initiative, 2026-09-08

Scope and sources

Affected products
Also released in September 2026

KB5002916

18 CVEs · Critical

KB5002923

31 CVEs · Critical

KB5101346

8 CVEs · Critical

KB5101347

5 CVEs · Critical

KB5122871

678 CVEs · Critical

KB5122876

615 CVEs · Critical

KB5122878

568 CVEs · Critical

KB5122880

601 CVEs · Critical

The full month, summarized: Microsoft Patch Tuesday.

Authoritative references
Official KB5124008 page (Microsoft Support)Microsoft Update CatalogMicrosoft Security Update Guide

See this and every Microsoft update ranked by real-world risk on the Microsoft Patch Tracker.

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.
Provided as is, without warranty; verify against the vendor advisory before acting. Data notice and terms.