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patches\u003C/a>\u003C/strong>\u003C/p>",[474,475],{"id":286,"title":287},{"id":283,"title":284},{"id":477,"title":478,"description":479,"plans":480},"MJlLPyxqTcy9ys2UaZYNKQ","Windows 10 v1909 patches","\u003Cp>Windows 10 1909 post-end-of-support patches\u003C/p>\n\u003Cp>\u003Cstrong>\u003Ca href=\"/patches?product=Windows+10\" target=\"_blank\" rel=\"noopener\">Click to see the full list of our Windows 10 patches\u003C/a>\u003C/strong>\u003C/p>",[481,482],{"id":283,"title":284},{"id":286,"title":287},{"id":484,"title":485,"description":486,"plans":487},"GscjCa1TQOe5p5Or7g2qyw","Windows 10 v1809 patches","\u003Cp>Windows 10 1809 post-end-of-support patches\u003C/p>\n\u003Cp>\u003Cstrong>\u003Ca href=\"/patches?product=Windows+10\" target=\"_blank\" rel=\"noopener\">Click to see the full list of our Windows 10 patches\u003C/a>\u003C/strong>\u003C/p>",[488,489],{"id":283,"title":284},{"id":286,"title":287},{"id":491,"title":492,"description":493,"plans":494},"OeQ8xMmJTmadIiPcKYkhvw","Windows 10 v1803 patches","\u003Cp>Windows 10 1803 post-end-of-support patches\u003C/p>\n\u003Cp>\u003Cstrong>\u003Ca href=\"/patches?product=Windows+10\" target=\"_blank\" rel=\"noopener\">Click to see the full list of our Windows 10 patches\u003C/a>\u003C/strong>\u003C/p>",[495,496],{"id":283,"title":284},{"id":286,"title":287},{"id":498,"title":499,"description":500,"plans":501},"Obe8z8snRYGoLT6BZyzhZw","Windows 7 post-EOS and post-ESU patches","\u003Cp>Windows 7 post-end-of-support patches, for computers without Extended Security Updates (ESU), or computers with any full year of ESU updates installed\u003C/p>",[502,503],{"id":283,"title":284},{"id":286,"title":287},"Windows Patches","DXze3dvpTu-HF132vKjSug","microsoft-windows-xp",{"alt":508,"url":509,"width":510,"height":510,"responsiveImage":511},"Windows 11 logo","https://www.datocms-assets.com/166020/1764600963-win11.png",300,{"srcSet":512,"webpSrcSet":513,"sizes":514,"src":515,"width":516,"height":516,"aspectRatio":210,"alt":508,"title":18,"bgColor":517,"base64":518},"https://www.datocms-assets.com/166020/1764600963-win11.png?auto=compress&crop=focalpoint&fit=crop&h=40 40w,https://www.datocms-assets.com/166020/1764600963-win11.png?auto=compress&crop=focalpoint&dpr=1.5&fit=crop&h=40 60w,https://www.datocms-assets.com/166020/1764600963-win11.png?auto=compress&crop=focalpoint&dpr=2&fit=crop&h=40 80w,https://www.datocms-assets.com/166020/1764600963-win11.png?auto=compress&crop=focalpoint&dpr=3&fit=crop&h=40 120w,https://www.datocms-assets.com/166020/1764600963-win11.png?auto=compress&crop=focalpoint&dpr=4&fit=crop&h=40 160w","https://www.datocms-assets.com/166020/1764600963-win11.png?auto=compress&crop=focalpoint&fit=crop&fm=webp&h=40 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Server 2012 R2 post-EOS patches","\u003Cp>Windows Server 2012 R2 post-end-of-support patches, for computers without Extended Security Updates (ESU), or computers with any full year of ESU updates installed\u003C/p>\n\u003Cp>\u003Cstrong>\u003Ca href=\"/patches?product=Windows+Server+2012+R2\" target=\"_blank\" rel=\"noopener\">Click to see the full list of our Windows Server 2012 R2 patches\u003C/a>\u003C/strong>\u003C/p>",[529,530],{"id":283,"title":284},{"id":286,"title":287},{"id":532,"title":533,"description":534,"plans":535},"ZaeezXKkT3KGln5CQ4NH9w","Windows Server 2012 post-EOS patches","\u003Cp>Windows Server 2012 post-end-of-support patches, for computers without Extended Security Updates (ESU), or computers with any full year of ESU updates installed\u003C/p>\n\u003Cp>\u003Cstrong>\u003Ca href=\"/patches?product=Windows+Server+2012\" target=\"_blank\" rel=\"noopener\">Click to see the full list of our Windows Server 2012 patches\u003C/a>\u003C/strong>\u003C/p>",[536,537],{"id":283,"title":284},{"id":286,"title":287},{"id":539,"title":540,"description":541,"plans":542},"RYxw9xwXR3-OWnsdr8dFEg","Windows Server 2008 R2 post-EOS and post-ESU patches","\u003Cp>Windows Server 2008 R2 post-end-of-support patches, for computers without Extended Security Updates (ESU), or computers with any full year of ESU updates installed\u003C/p>\n\u003Cp>\u003Cstrong>\u003Ca href=\"/patches?product=Windows+Server+2008+R2\" target=\"_blank\" rel=\"noopener\">Click to see the full list of our Windows Server 2008 R2 patches\u003C/a>\u003C/strong>\u003C/p>",[543,544],{"id":283,"title":284},{"id":286,"title":287},"Windows Server Patches","J7WLPCrKS7i7B8sAyJpKWg","microsoft-windows-vista",{"alt":549,"url":550,"width":551,"height":510,"responsiveImage":552},"Windows Server 2012-2022 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Office 2019 post-EOS patches","\u003Cp>Microsoft Office 2019 post-end-of-support patches\u003C/p>\n\u003Cp>\u003Cstrong>\u003Ca href=\"/patches?product=Office+2019\" target=\"_blank\" rel=\"noopener\">Click to see the full list of our Microsoft Office 2019 patches\u003C/a>\u003C/strong>\u003C/p>",[570,571],{"id":283,"title":284},{"id":286,"title":287},{"id":573,"title":574,"description":575,"plans":576},"MkFk40IJQhCcXnIO2ZDd4Q","Microsoft Office 2016 post-EOS patches","\u003Cp>Microsoft Office 2016 post-end-of-support patches\u003C/p>\n\u003Cp>\u003Cstrong>\u003Ca href=\"/patches?product=Office+2016\" target=\"_blank\" rel=\"noopener\">Click to see the full list of our Microsoft Office 2016 patches\u003C/a>\u003C/strong>\u003C/p>",[577,578],{"id":283,"title":284},{"id":286,"title":287},{"id":580,"title":581,"description":582,"plans":583},"FFqWfGxfQF2q0uyjyRjVWg","Microsoft Office 2013 post-EOS patches","\u003Cp>Microsoft Office 2013 post-end-of-support patches\u003C/p>\n\u003Cp>\u003Cstrong>\u003Ca href=\"/patches?product=Office+2013\" target=\"_blank\" rel=\"noopener\">Click to see the full list of our Microsoft Office 2013 patches\u003C/a>\u003C/strong>\u003C/p>",[584,585],{"id":283,"title":284},{"id":286,"title":287},{"id":587,"title":588,"description":589,"plans":590},"XFYgrsOyRpeuEXk29M4z9g","Microsoft Office 2010 post-EOS patches","\u003Cp>Microsoft Office 2010 post-end-of-support patches\u003C/p>\n\u003Cp>\u003Cstrong>\u003Ca href=\"/patches?product=Office+2010\" target=\"_blank\" rel=\"noopener\">Click to see the full list of our Microsoft Office 2010 patches\u003C/a>\u003C/strong>\u003C/p>",[591,592],{"id":283,"title":284},{"id":286,"title":287},"Microsoft Office Patches","VH2unwR4RjycDA1o_6eSFw","microsoft-windows-7",{"alt":597,"url":598,"width":510,"height":510,"responsiveImage":599},"Microsoft Office 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products patches","\u003Cp>We occasionally patch other Windows products, for instance when a critical vulnerability becomes known and the vendor does not provide an official patch in a timely manner\u003C/p>",[613],{"id":283,"title":284},"Other","BrWA-hAsQYSROgTvF-1ecA","microsoft-windows-11",{"alt":618,"url":619,"width":620,"height":621,"responsiveImage":18},"Windows 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more",[688,691],{"id":689,"primary":685,"externalLink":95,"parent":18,"reference":18,"title":690,"description":40,"publishTranslation":42},"B1pEweRaRD2YBkP6aH1CfA","Help center",{"id":692,"primary":42,"externalLink":693,"parent":18,"reference":18,"title":694,"description":40,"publishTranslation":42},"Mk0Yz-yqTk2akShgf7ARNg","https://central.0patch.com/","Sign in",[696,700],{"id":697,"title":698,"url":699},"NDrk5d4kQ96J2aCuTr-gvg","0patch on X","https://twitter.com/0patch",{"id":701,"title":702,"url":703},"GqN4lYxyTMyzcmRllVY4mg","Linked In","https://linkedin.com/company/0patch",{"left":705,"top":705,"width":706,"height":706,"rotate":705,"vFlip":685,"hFlip":685,"body":707},0,24,"\u003Cg fill=\"none\">\u003Cpath d=\"M11.9999 15.0539L6.34619 9.40013L7.39994 8.34637L11.9999 12.9464L16.5999 8.34637L17.6537 9.40013L11.9999 15.0539Z\" fill=\"currentColor\"/>\u003C/g>",{"left":705,"top":705,"width":706,"height":706,"rotate":705,"vFlip":685,"hFlip":685,"body":709},"\u003Cg 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website.",{"tag":722,"attributes":733,"content":18},{"property":734,"content":731},"og:description",{"tag":722,"attributes":736,"content":18},{"name":737,"content":731},"twitter:description",{"tag":722,"attributes":739,"content":18},{"property":740,"content":741},"og:image","https://www.datocms-assets.com/166020/1774002334-7506_vulncard.png?auto=format&fit=max&w=1200",{"tag":722,"attributes":743,"content":18},{"property":744,"content":745},"og:image:width","1200",{"tag":722,"attributes":747,"content":18},{"property":748,"content":749},"og:image:height","600",{"tag":722,"attributes":751,"content":18},{"property":752,"content":753},"og:image:alt","CVE-2022-34721",{"tag":722,"attributes":755,"content":18},{"name":756,"content":741},"twitter:image",{"tag":722,"attributes":758,"content":18},{"name":759,"content":753},"twitter:image:alt",{"tag":722,"attributes":761,"content":18},{"property":762,"content":32},"og:locale",{"tag":722,"attributes":764,"content":18},{"property":765,"content":77},"og:type",{"tag":722,"attributes":767,"content":18},{"property":768,"content":6},"og:site_name",{"tag":722,"attributes":770,"content":18},{"property":771,"content":772},"article:modified_time","2026-04-02T12:46:14Z",{"tag":722,"attributes":774,"content":18},{"property":775,"content":40},"article:publisher",{"tag":722,"attributes":777,"content":18},{"name":778,"content":779},"twitter:card","summary",{"tag":722,"attributes":781,"content":18},{"name":782,"content":783},"robots","noindex",[785],{"value":786,"locale":32},"2022-10-micropatches-for-windows-ike-extension",[788],{"value":42,"locale":32},"2022-10-05T00:00:00+02:00","Mitja Kolsek","UH3ZlZknQm6SSiZxXAnjdw",{"blocks":793,"links":806,"value":807},[794],{"id":795,"_modelApiKey":796,"__typename":797,"video":798},"f0FkqmVMTqy35W2W_WAemA","video_external","VideoExternalRecord",{"url":799,"title":800,"thumbnailUrl":801,"height":802,"provider":803,"providerUid":804,"width":805},"https://www.youtube.com/watch?v=Fn-WXd_PpUI","0patching Windows IKE Extension Remote Code Execution (CVE-2022-34721)","https://i.ytimg.com/vi/Fn-WXd_PpUI/hqdefault.jpg",113,"youtube","Fn-WXd_PpUI",200,[],{"schema":808,"document":809},"dast",{"type":810,"children":811},"root",[812,874,887,898,904,907,911,913,917,972,984,1003],{"type":813,"children":814},"paragraph",[815,818,827,829,836,838,845,847,854,856,863,865,872],{"type":816,"value":817},"span","September 2022 Windows Updates brought a ",{"url":819,"meta":820,"type":12,"children":824},"https://msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2022-34721",[821],{"id":822,"value":823},"target","_blank",[825],{"type":816,"value":826},"fix",{"type":816,"value":828}," for a remote code execution vulnerability in Windows IKE Extension discovered by ",{"url":830,"meta":831,"type":12,"children":833},"https://twitter.com/guhe120",[832],{"id":822,"value":823},[834],{"type":816,"value":835},"Yuki Chen",{"type":816,"value":837}," with ",{"url":839,"meta":840,"type":12,"children":842},"https://www.cyberkl.com/",[841],{"id":822,"value":823},[843],{"type":816,"value":844},"Cyber KunLun",{"type":816,"value":846},". Soon after that, researchers from ",{"url":848,"meta":849,"type":12,"children":851},"https://www.78researchlab.com/",[850],{"id":822,"value":823},[852],{"type":816,"value":853},"78ResearchLab",{"type":816,"value":855}," published an ",{"url":857,"meta":858,"type":12,"children":860},"https://github.com/78ResearchLab/PoC/tree/main/CVE-2022-34721",[859],{"id":822,"value":823},[861],{"type":816,"value":862},"analysis and POC",{"type":816,"value":864}," for this vulnerability. This made it possible for us to create a patch for affected ",{"url":866,"meta":867,"type":12,"children":869},"https://0patch.zendesk.com/hc/en-us/articles/4403751356050-Which-Windows-versions-has-0patch-security-adopted-",[868],{"id":822,"value":823},[870],{"type":816,"value":871},"\"security-adopted\"",{"type":816,"value":873}," Windows systems that no longer receive official fixes from Microsoft.\n",{"type":813,"children":875},[876,878,885],{"type":816,"value":877},"The vulnerability is in the code responsible for handling IKEv1 (",{"url":879,"meta":880,"type":12,"children":882},"https://en.wikipedia.org/wiki/Internet_Key_Exchange",[881],{"id":822,"value":823},[883],{"type":816,"value":884},"Internet Key Exchange",{"type":816,"value":886}," version 1) key exchange protocol, which is deprecated but still supported for legacy reasons. It is a memory corruption issue, with the POC causing the svchost.exe process hosting the IKEEXT service to crash by attempting to read data beyond an allocated buffer. The crash only occurs with page heap (a debugging accessory) enabled for the process, while in a typical production configuration, the vulnerability could potentially be used for arbitrary code execution (as confirmed by Microsoft's advisory).\n",{"type":813,"children":888},[889,891,896],{"type":816,"value":890},"Microsoft assigned this issue ",{"url":819,"meta":892,"type":12,"children":894},[893],{"id":822,"value":823},[895],{"type":816,"value":753},{"type":816,"value":897}," and fixed it by adding a check for the length of incoming data, and bypassing the processing of such data if the length is too small. Our micropatch is logically equivalent to Microsoft's:",{"type":813,"children":899},[900],{"type":816,"marks":901,"value":903},[902],"code","MODULE_PATH \".\\ikeext.dll\"\nPATCH_ID 1000009\nPATCH_FORMAT_VER 2\nVULN_ID 1000010\nPLATFORM win64\n\npatchlet_start\n    PATCHLET_ID 1\n    PATCHLET_TYPE 2\n    PATCHLET_OFFSET 0x2d131\n    N_ORIGINALBYTES 5\n    JUMPOVERBYTES 0\n    PIT ikeext!0xaafd8,ikeext!0x2d1c0,ikeext!0x2d14f\n    ; 0xaafd8 -> IkeCopyIncomingData\n    ; 0x2d1c0 -> first WfpMemFree block\n    ; 0x2d14f -> jump to NtohHeader in same block as patch\n    \n    code_start\n       \n        mov r8d, 1Ch        ; number of characters to copy; for memcpy in IkeCopyIncomingData\n        lea rcx, [rbp-30h]  ; new buffer; for memcpy in IkeCopyIncomingData        mov rdx, r14           ; buffer to copy from; for memcpy in IkeCopyIncomingData\n        call PIT_0xaafd8    ; call IkeCopyIncomingData\n        mov rbx, rax        ; save return from IkeCopyIncomingData\n        test rax, rax       ; check if return from IkeCopyIncomingData is non-zero\n        jnz PIT_0x2d1c0     ; jump to WfpMemFree block if non-zero\n       \n        lea rcx, [rbp-30h]  ; buffer with copied data\n        jmp PIT_0x2d14f     ; jmp to NtohHeader in same block as patch\n       \n    code_end\npatchlet_end",{"type":813,"children":905},[906],{"type":816,"value":40},{"type":813,"children":908},[909],{"type":816,"value":910},"This video demonstrates the effect of our micropatch. With 0patch disabled, launching the POC against a vulnerable computer causes a svchost.exe process to crash due to memory access violation. With 0patch enabled, the vulnerability is no longer there, the malformed IKEv1 packet is blocked, and the service doesn't crash.\n",{"item":795,"type":912},"block",{"type":813,"children":914},[915],{"type":816,"value":916},"The micropatch was written for the following Versions of Windows with all available Windows Updates installed:",{"type":918,"style":919,"children":920},"list","numbered",[921,930,937,944,951,958,965],{"type":922,"children":923},"listItem",[924],{"type":813,"children":925},[926],{"type":816,"marks":927,"value":929},[928],"strong","Windows 10 v2004",{"type":922,"children":931},[932],{"type":813,"children":933},[934],{"type":816,"marks":935,"value":936},[928],"Windows 10 v1909",{"type":922,"children":938},[939],{"type":813,"children":940},[941],{"type":816,"marks":942,"value":943},[928],"Windows 10 v1903",{"type":922,"children":945},[946],{"type":813,"children":947},[948],{"type":816,"marks":949,"value":950},[928],"Windows 10 v1809",{"type":922,"children":952},[953],{"type":813,"children":954},[955],{"type":816,"marks":956,"value":957},[928],"Windows 10 v1803 ",{"type":922,"children":959},[960],{"type":813,"children":961},[962],{"type":816,"marks":963,"value":964},[928],"Windows 7 without ESU, with year 1 of ESU and with year 2 of ESU",{"type":922,"children":966},[967],{"type":813,"children":968},[969],{"type":816,"marks":970,"value":971},[928],"Windows Server 2008 R2 without ESU, with year 1 of ESU and with year 2 of ESU",{"type":813,"children":973},[974,976,982],{"type":816,"value":975},"  This micropatch has already been distributed to all online 0patch Agents with a PRO or Enterprise license. To obtain the micropatch and have it applied on your computers along with our other micropatches, create an account in ",{"url":693,"meta":977,"type":12,"children":979},[978],{"id":822,"value":823},[980],{"type":816,"value":981},"0patch Central",{"type":816,"value":983},", install 0patch Agent and register it to your account with a PRO or Enterprise subscription. Note that no computer restart is needed for installing the agent or applying/un-applying any 0patch micropatch.\n",{"type":813,"children":985},[986,988,994,996,1001],{"type":816,"value":987},"To learn more about 0patch, please visit our ",{"url":989,"meta":990,"type":12,"children":992},"https://0patch.zendesk.com/hc/en-us",[991],{"id":822,"value":823},[993],{"type":816,"value":97},{"type":816,"value":995},". For a trial or demo please contact ",{"url":997,"type":12,"children":998},"mailto:sales@0patch.com",[999],{"type":816,"value":1000},"sales@0patch.com",{"type":816,"value":1002},".",{"type":813,"children":1004},[1005,1007,1012,1014,1020],{"type":816,"value":1006},"We'd like to thank ",{"url":830,"meta":1008,"type":12,"children":1010},[1009],{"id":822,"value":823},[1011],{"type":816,"value":835},{"type":816,"value":1013}," for finding this issue, and ",{"url":1015,"meta":1016,"type":12,"children":1018},"https://twitter.com/78_lab",[1017],{"id":822,"value":823},[1019],{"type":816,"value":853},{"type":816,"value":1021}," researchers for publishing their analysis and providing a proof-of-concept that allowed us to reproduce the vulnerability and create a micropatch. We also encourage security researchers to privately share their analyses with us for micropatching.",{"alt":753,"url":1023,"width":1024,"height":1025,"responsiveImage":1026},"https://www.datocms-assets.com/166020/1774002334-7506_vulncard.png",1600,800,{"srcSet":1027,"webpSrcSet":1028,"sizes":1029,"src":1030,"width":1031,"height":1032,"aspectRatio":228,"alt":753,"title":18,"bgColor":1033,"base64":1034},"https://www.datocms-assets.com/166020/1774002334-7506_vulncard.png?auto=compress&crop=focalpoint&dpr=0.25&fit=crop&w=1440 360w,https://www.datocms-assets.com/166020/1774002334-7506_vulncard.png?auto=compress&crop=focalpoint&dpr=0.5&fit=crop&w=1440 720w,https://www.datocms-assets.com/166020/1774002334-7506_vulncard.png?auto=compress&crop=focalpoint&dpr=0.75&fit=crop&w=1440 1080w,https://www.datocms-assets.com/166020/1774002334-7506_vulncard.png?auto=compress&crop=focalpoint&fit=crop&w=1440 1440w","https://www.datocms-assets.com/166020/1774002334-7506_vulncard.png?auto=compress&crop=focalpoint&dpr=0.25&fit=crop&fm=webp&w=1440 360w,https://www.datocms-assets.com/166020/1774002334-7506_vulncard.png?auto=compress&crop=focalpoint&dpr=0.5&fit=crop&fm=webp&w=1440 720w,https://www.datocms-assets.com/166020/1774002334-7506_vulncard.png?auto=compress&crop=focalpoint&dpr=0.75&fit=crop&fm=webp&w=1440 1080w,https://www.datocms-assets.com/166020/1774002334-7506_vulncard.png?auto=compress&crop=focalpoint&fit=crop&fm=webp&w=1440 1440w","(max-width: 1440px) 100vw, 1440px","https://www.datocms-assets.com/166020/1774002334-7506_vulncard.png?auto=compress&crop=focalpoint&fit=crop&w=1440",1440,720,"#62ba6a","data:image/png;base64,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",1780067944600]