CVE-2026-3949 | BDVDB-2026-319880 Detail
strukturaglibheif
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.
Impact#
Per CVSS v3.1: confidentiality impact none, integrity impact none, availability impact low. Attack vector: local.
Weaknesses#
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/
Exploit#
History#
- Version 1Record published in the CVE List.