{"@odata.context":"https://api.msrc.microsoft.com/sug/v2.0/sugodata/v2.0/en-US/$metadata#vulnerability/$entity","id":"00000000-0000-0000-0000-00001059a4b5","releaseDate":"2026-11-10T08:00:00-08:00","cveNumber":"CVE-2026-114167","cveTitle":"HEVC Video Extensions Remote Code Execution Vulnerability","releaseNumber":"2026-Nov","vulnType":"Security Vulnerability","latestRevisionDate":"2026-11-10T08:00:00-08:00","description":"<p>Heap-based buffer overflow in Microsoft Windows Codecs Library allows an unauthorized attacker to execute code locally.</p>\n","cweList":["CWE-122: Heap-based Buffer Overflow"],"cweDetailsListForSearch":["cwe: CWE-122: Heap-based Buffer Overflow","cweUrl: https://cwe.mitre.org/data/definitions/122.html"],"unformattedDescription":"<p>Heap-based buffer overflow in Microsoft Windows Codecs Library allows an unauthorized attacker to execute code locally.</p>","mitreText":"CVE-2026-114167","mitreUrl":"https://www.cve.org/CVERecord?id=CVE-2026-114167","publiclyDisclosed":"No","exploited":"No","latestSoftwareReleaseId":2,"latestSoftwareRelease":"Exploitation Less Likely","olderSoftwareReleaseId":0,"denialOfService":"N/A","tag":"Microsoft Windows Codecs Library","issuingCna":"Microsoft","issuingCnaId":100000001,"severityId":100000001,"severity":"Important","impactId":100000005,"impact":"Remote Code Execution","langCode":"en-US","baseScore":"7.8","temporalScore":"6.8","vectorString":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C","vectorStringSource":"Microsoft","isMariner":false,"customerActionRequired":true,"customerActionRequiredId":1,"cweDetailsList":[{"keys":["cwe","cweUrl"],"values":["CWE-122: Heap-based Buffer Overflow","https://cwe.mitre.org/data/definitions/122.html"]}],"articles":[{"title":"Microsoft Windows Codecs Library Remote Code Execution Vulnerability","articleType":"100000000","description":"<p>Heap-based buffer overflow in Microsoft Windows Codecs Library allows an unauthorized attacker to execute code locally.</p>\n","ordinal":10000},{"articleType":"FAQ","description":"<p><strong>According to the CVSS metric, the attack vector is local (AV:L). Why does the CVE title indicate that this is a remote code execution?</strong></p>\n<p>The word <strong>Remote</strong> in the title refers to the location of the attacker. This type of exploit is sometimes referred to as Arbitrary Code Execution (ACE). The attack itself is carried out locally.</p>\n<p>For example, when the score indicates that the <strong>Attack Vector</strong> is <strong>Local</strong> and <strong>User Interaction</strong> is <strong>Required</strong>, this could describe an exploit in which an attacker, through social engineering, convinces a victim to download and open a specially crafted file from a website which leads to a local attack on their computer.</p>\n","ordinal":10000}],"revisions":[{"cveNumber":"CVE-2026-114167","version":1,"revisionDate":"2026-11-10T08:00:00-08:00","initialDate":"0001-01-01T00:00:00Z","description":"<p>Information published.</p>\n","unformattedDescription":"Information published.","notificationNeeded":false,"notificationSent":false,"sourceId":"85c1b028-fece-f111-a059-000d3a369ea6"}]}