{"id":"CVE-2014-4148","published":"2014-10-15T10:55:08Z","modified":"2026-06-17T00:09:30Z","title":"Microsoft Windows Remote Code Execution Vulnerability","vendor":"Microsoft","product":"Windows","tier":"core","eol":null,"description":{"text":"win32k.sys in the kernel-mode drivers in Microsoft Windows Server 2003 SP2, Windows Vista SP2, Windows Server 2008 SP2 and R2 SP1, Windows 7 SP1, Windows 8, Windows 8.1, Windows Server 2012 Gold and R2, and Windows RT Gold and 8.1 allows remote attackers to execute arbitrary code via a crafted TrueType font, as exploited in the wild in October 2014, aka \"TrueType Font Parsing Remote Code Execution Vulnerability.\"","provenance":"source","from":"NVD"},"summary":{"text":"The flaw is in win32k.sys, the kernel-mode drivers component of Microsoft Windows, affecting multiple Windows Server and client releases. An attacker who can reach the affected system over the network can execute arbitrary code by delivering a crafted TrueType font, which requires a user to interact with the malicious content and no prior authentication.","provenance":"ai","model":"claude-haiku-5-5","generatedAt":"2026-10-23T07:12:30Z"},"cvss":{"score":8.8,"severity":"HIGH","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","provenance":"source","from":"NVD"},"epss":{"score":0.5985,"percentile":0.99128,"date":"2026-10-28","provenance":"source"},"kev":{"dateAdded":"2022-05-25","dueDate":"2022-06-15","ransomware":false,"requiredAction":"Apply updates per vendor instructions.","notes":"https://nvd.nist.gov/vuln/detail/CVE-2014-4148","provenance":"source"},"vulncheckKev":{"dateAdded":"2014-10-14","exploitedFirstSeen":"2014-10-14","ransomware":false,"evidence":[{"url":"https://docs.google.com/spreadsheets/d/1lkNJ0uQwbeC1ZTRrxdtuPLCIl7mlUreoKfSIgajnSyY/edit","date":"2014-10-14"},{"url":"https://www.cve.org/CVERecord?id=CVE-2014-4148","date":"2014-10-15"},{"url":"https://media.kasperskycontenthub.com/wp-content/uploads/sites/43/2018/03/07205202/The_Mystery_of_Duqu_2_0_a_sophisticated_cyberespionage_actor_returns.pdf","date":"2015-06-11"},{"url":"https://www.dropbox.com/s/buxkfotx1kei0ce/Whitepaper%20Shadow%20Broker%20-%20Equation%20Group%20Hack.pdf?dl=0","date":"2016-10-05"},{"url":"https://community.broadcom.com/symantecenterprise/communities/community-home/librarydocuments/viewdocument?DocumentKey=7ca2e331-2209-46a8-9e60-4cb83f9602de&CommunityKey=1ecf5f55-9545-44d6-b0f4-4e4a7f5f5e68&tab=librarydocuments","date":"2017-04-10"},{"url":"https://dl.acm.org/doi/pdf/10.1145/3465481.3465758","date":"2021-08-17"},{"url":"https://www.cisa.gov/sites/default/files/feeds/known_exploited_vulnerabilities.json","date":"2022-05-25"}],"evidenceTotal":7,"provenance":"source"},"exploited":true,"otx":{"pulseCount":50,"pulses":[{"name":"Actively_Exploited_Kev 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2026","url":"https://otx.alienvault.com/pulse/6ad62f63c24a405a3423cc13","created":"2026-10-19"},{"name":"Actively_Exploited_Kev | Oct 19, 2026","url":"https://otx.alienvault.com/pulse/6ad4dda174e5797d0bd238b7","created":"2026-10-18"},{"name":"Actively_Exploited_Kev | Oct 18, 2026","url":"https://otx.alienvault.com/pulse/6ad38c22e1848f8189d1c121","created":"2026-10-17"}],"provenance":"machine"},"cwes":[{"id":"CWE-94","name":"Improper Control of Generation of Code"}],"references":[{"url":"http://blogs.technet.com/b/srd/archive/2014/10/14/accessing-risk-for-the-october-2014-security-updates.aspx","tags":["Not Applicable"]},{"url":"http://secunia.com/advisories/60970","tags":["Broken Link"]},{"url":"http://www.securityfocus.com/bid/70429","tags":["Broken Link","Third Party Advisory","VDB Entry"]},{"url":"https://docs.microsoft.com/en-us/security-updates/securitybulletins/2014/ms14-058","tags":["Patch","Vendor 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expert-reviewed)"}],"reports":[],"affected":[],"advisories":[],"euvd":{"id":"EUVD-2014-4079","url":"https://euvd.enisa.europa.eu/vulnerability/EUVD-2014-4079","exploited":true,"exploitedSince":"2022-05-25","provenance":"source"},"exploits":[],"exploitSources":null,"exploitRefs":[],"flow":[{"stage":"exploitation","techniques":["T1189"],"provenance":"ai"},{"stage":"primary","techniques":["T1059"],"provenance":"ai"},{"stage":"related","techniques":["T1190","T1136","T1505","T1068"],"provenance":"source","lowConfidence":true}],"timeline":[{"date":"2014-10-14","kind":"exploited-reported","label":"Exploitation first reported (VulnCheck KEV evidence)","url":"https://docs.google.com/spreadsheets/d/1lkNJ0uQwbeC1ZTRrxdtuPLCIl7mlUreoKfSIgajnSyY/edit","provenance":"source"},{"date":"2014-10-15","kind":"published","label":"Published (NVD)","url":"https://nvd.nist.gov/vuln/detail/CVE-2014-4148","provenance":"source"},{"date":"2022-05-25","kind":"kev","label":"Added to CISA 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product","points":0.0,"detail":"supported or unknown"}]},"lineage":{"familyId":"fam-class-microsoft-windows-cwe-94"}}