{"id":"CVE-2026-3949","state":"PUBLISHED","title":"strukturag libheif HEIF File decoder_vvdec.cc vvdec_push_data2 out-of-bounds","description":"A vulnerability was determined in strukturag libheif up to 1.21.2. This affects the function vvdec_push_data2 of the file libheif/plugins/decoder_vvdec.cc of the component HEIF File Parser. Executing a manipulation of the argument size can lead to out-of-bounds read. The attack needs to be launched locally. The exploit has been publicly disclosed and may be utilized. This patch is called b97c8b5f198b27f375127cd597a35f2113544d03. It is advisable to implement a patch to correct this issue.","publishedAt":"2026-03-11T18:32:09.358Z","updatedAt":"2026-03-11T19:38:00.870Z","severity":{"score":4.8,"label":"Medium","version":"4.0","vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P","source":"VulDB"},"assigner":"VulDB","products":["strukturag libheif"],"affected":[{"vendor":"strukturag","product":"libheif","versions":[{"version":"1.21.0","status":"affected"},{"version":"1.21.1","status":"affected"},{"version":"1.21.2","status":"affected"}],"modules":["HEIF File Parser"]}],"references":["https://vuldb.com/?id.350381","https://vuldb.com/?ctiid.350381","https://vuldb.com/?submit.765979","https://github.com/strukturag/libheif/issues/1712","https://github.com/strukturag/libheif/issues/1712#issuecomment-3947938531","https://github.com/biniamf/pocs/tree/main/libheif_vvdec","https://github.com/strukturag/libheif/commit/b97c8b5f198b27f375127cd597a35f2113544d03","https://github.com/strukturag/libheif/"],"weaknesses":["CWE-125","CWE-119"],"ingestedAt":"2026-10-29T20:11:50.837Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/3xxx/CVE-2026-3949.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-3949","state":"PUBLISHED","datePublished":"2026-03-11T18:32:09.358Z","dateUpdated":"2026-03-11T19:38:00.870Z","assignerShortName":"VulDB","assignerOrgId":"1af790b2-7ee1-4545-860a-a788eba489b5","dateReserved":"2026-03-11T11:59:39.639Z"},"containers":{"cna":{"title":"strukturag libheif HEIF File decoder_vvdec.cc vvdec_push_data2 out-of-bounds","descriptions":[{"lang":"en","value":"A vulnerability was determined in strukturag libheif up to 1.21.2. This affects the function vvdec_push_data2 of the file libheif/plugins/decoder_vvdec.cc of the component HEIF File Parser. Executing a manipulation of the argument size can lead to out-of-bounds read. The attack needs to be launched locally. The exploit has been publicly disclosed and may be utilized. This patch is called b97c8b5f198b27f375127cd597a35f2113544d03. 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