CVE-2026-33165

{"id": "CVE-2026-33165", "cveTags": [], "metrics": {"cvssMetricV31": [{"type": "Secondary", "source": "security-advisories@github.com", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 5.5, "attackVector": "LOCAL", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H", "integrityImpact": "NONE", "userInteraction": "REQUIRED", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "NONE"}, "impactScore": 3.6, "exploitabilityScore": 1.8}, {"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 5.0, "attackVector": "LOCAL", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:N/I:N/A:H", "integrityImpact": "NONE", "userInteraction": "REQUIRED", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "LOW", "confidentialityImpact": "NONE"}, "impactScore": 3.6, "exploitabilityScore": 1.3}]}, "published": "2026-03-20T21:17:16.453", "references": [{"url": "https://github.com/strukturag/libde265/commit/c7891e412106130b83f8e8ea8b7f907e9449b658", "tags": ["Patch"], "source": "security-advisories@github.com"}, {"url": "https://github.com/strukturag/libde265/releases/tag/v1.0.17", "tags": ["Release Notes"], "source": "security-advisories@github.com"}, {"url": "https://github.com/strukturag/libde265/security/advisories/GHSA-653q-9f73-8hvg", "tags": ["Exploit", "Vendor Advisory", "Patch"], "source": "security-advisories@github.com"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Primary", "source": "security-advisories@github.com", "description": [{"lang": "en", "value": "CWE-787"}]}], "descriptions": [{"lang": "en", "value": "libde265 is an open source implementation of the h.265 video codec. Prior to version 1.0.17, a crafted HEVC bitstream causes an out-of-bounds heap write confirmed by AddressSanitizer. The trigger is a stale ctb_info.log2unitSize after an SPS change where PicWidthInCtbsY and PicHeightInCtbsY stay constant but Log2CtbSizeY changes, causing set_SliceHeaderIndex to index past the allocated image metadata array and write 2 bytes past the end of a heap allocation. This issue has been patched in version 1.0.17."}], "lastModified": "2026-03-23T20:09:04.893", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:struktur:libde265:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "40DB036E-3A5D-4245-B887-4123769ECB8D", "versionEndExcluding": "1.0.17"}], "operator": "OR"}]}], "sourceIdentifier": "security-advisories@github.com"}