{"resultsPerPage":1,"startIndex":0,"totalResults":1,"format":"NVD_CVE","version":"2.0","timestamp":"2026-05-18T06:54:56.003","vulnerabilities":[{"cve":{"id":"CVE-2025-68431","sourceIdentifier":"security-advisories@github.com","published":"2025-12-29T19:15:56.933","lastModified":"2026-02-25T14:53:34.747","vulnStatus":"Analyzed","cveTags":[],"descriptions":[{"lang":"en","value":"libheif is an HEIF and AVIF file format decoder and encoder. Prior to version 1.21.0, a crafted HEIF that exercises the overlay image item path triggers a heap buffer over-read in `HeifPixelImage::overlay()`. The function computes a negative row length (likely from an unclipped overlay rectangle or invalid offsets), which then underflows when converted to `size_t` and is passed to `memcpy`, causing a very large read past the end of the source plane and a crash. Version 1.21.0 contains a patch. As a workaround, avoid decoding images using `iovl` overlay boxes."}],"metrics":{"cvssMetricV31":[{"source":"security-advisories@github.com","type":"Secondary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H","baseScore":6.5,"baseSeverity":"MEDIUM","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"REQUIRED","scope":"UNCHANGED","confidentialityImpact":"NONE","integrityImpact":"NONE","availabilityImpact":"HIGH"},"exploitabilityScore":2.8,"impactScore":3.6},{"source":"nvd@nist.gov","type":"Primary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:H","baseScore":7.1,"baseSeverity":"HIGH","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"REQUIRED","scope":"UNCHANGED","confidentialityImpact":"LOW","integrityImpact":"NONE","availabilityImpact":"HIGH"},"exploitabilityScore":2.8,"impactScore":4.2}]},"weaknesses":[{"source":"security-advisories@github.com","type":"Primary","description":[{"lang":"en","value":"CWE-125"},{"lang":"en","value":"CWE-190"}]}],"configurations":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:a:struktur:libheif:*:*:*:*:*:*:*:*","versionEndExcluding":"1.21.0","matchCriteriaId":"BBD4D6C6-A38E-4C2C-AB9D-F82441BE2D4F"}]}]}],"references":[{"url":"https://github.com/strukturag/libheif/commit/b8c12a7b70f46c9516711a988483bed377b78d46","source":"security-advisories@github.com","tags":["Patch"]},{"url":"https://github.com/strukturag/libheif/releases/tag/v1.21.0","source":"security-advisories@github.com","tags":["Product","Release Notes"]},{"url":"https://github.com/strukturag/libheif/security/advisories/GHSA-j87x-4gmq-cqfq","source":"security-advisories@github.com","tags":["Exploit","Patch","Vendor Advisory"]}]}}]}