{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-3949","assignerOrgId":"1af790b2-7ee1-4545-860a-a788eba489b5","state":"PUBLISHED","assignerShortName":"VulDB","dateReserved":"2026-03-11T11:59:39.639Z","datePublished":"2026-03-11T18:32:09.358Z","dateUpdated":"2026-03-11T19:38:00.870Z"},"containers":{"cna":{"providerMetadata":{"orgId":"1af790b2-7ee1-4545-860a-a788eba489b5","shortName":"VulDB","dateUpdated":"2026-03-11T18:32:09.358Z"},"title":"strukturag libheif HEIF File decoder_vvdec.cc vvdec_push_data2 out-of-bounds","problemTypes":[{"descriptions":[{"type":"CWE","cweId":"CWE-125","lang":"en","description":"Out-of-Bounds Read"}]},{"descriptions":[{"type":"CWE","cweId":"CWE-119","lang":"en","description":"Memory Corruption"}]}],"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"]}],"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. It is advisable to implement a patch to correct this issue."}],"metrics":[{"cvssV4_0":{"version":"4.0","baseScore":4.8,"vectorString":"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","baseSeverity":"MEDIUM"}},{"cvssV3_1":{"version":"3.1","baseScore":3.3,"vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L/E:P/RL:O/RC:C","baseSeverity":"LOW"}},{"cvssV3_0":{"version":"3.0","baseScore":3.3,"vectorString":"CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L/E:P/RL:O/RC:C","baseSeverity":"LOW"}},{"cvssV2_0":{"version":"2.0","baseScore":1.7,"vectorString":"AV:L/AC:L/Au:S/C:N/I:N/A:P/E:POC/RL:OF/RC:C"}}],"timeline":[{"time":"2026-03-11T00:00:00.000Z","lang":"en","value":"Advisory disclosed"},{"time":"2026-03-11T01:00:00.000Z","lang":"en","value":"VulDB entry created"},{"time":"2026-03-11T13:04:43.000Z","lang":"en","value":"VulDB entry last update"}],"credits":[{"lang":"en","value":"biniam (VulDB User)","type":"reporter"}],"references":[{"url":"https://vuldb.com/?id.350381","name":"VDB-350381 | strukturag libheif HEIF File decoder_vvdec.cc vvdec_push_data2 out-of-bounds","tags":["vdb-entry","technical-description"]},{"url":"https://vuldb.com/?ctiid.350381","name":"VDB-350381 | CTI Indicators (IOB, IOC, IOA)","tags":["signature","permissions-required"]},{"url":"https://vuldb.com/?submit.765979","name":"Submit #765979 | strukturag libheif 1.21.2 Out-of-Bounds Read","tags":["third-party-advisory"]},{"url":"https://github.com/strukturag/libheif/issues/1712","tags":["issue-tracking"]},{"url":"https://github.com/strukturag/libheif/issues/1712#issuecomment-3947938531","tags":["issue-tracking"]},{"url":"https://github.com/biniamf/pocs/tree/main/libheif_vvdec","tags":["exploit"]},{"url":"https://github.com/strukturag/libheif/commit/b97c8b5f198b27f375127cd597a35f2113544d03","tags":["patch"]},{"url":"https://github.com/strukturag/libheif/","tags":["product"]}],"tags":["x_open-source"]},"adp":[{"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-03-11T19:37:14.390113Z","id":"CVE-2026-3949","options":[{"Exploitation":"poc"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"title":"CISA ADP Vulnrichment","providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2026-03-11T19:38:00.870Z"}}]}}