3.3

CVE-2026-3949

Exploit

strukturag libheif HEIF File decoder_vvdec.cc vvdec_push_data2 out-of-bounds

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.
Daten sind bereitgestellt durch das CVE Programm von einer CVE Numbering Authority (CNA) (Unstrukturiert).
Herstellerstrukturag
≫
Produkt libheif
Version 1.21.0
Status affected
Version 1.21.1
Status affected
Version 1.21.2
Status affected
Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.12% 0.02
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
cna@vuldb.com 3.3 1.8 1.4
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L
cna@vuldb.com 1.9 0 0
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/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
cna@vuldb.com 1.7 3.1 2.9
AV:L/AC:L/Au:S/C:N/I:N/A:P
CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer

The product performs operations on a memory buffer, but it reads from or writes to a memory location outside the buffer's intended boundary. This may result in read or write operations on unexpected memory locations that could be linked to other variables, data structures, or internal program data.

CWE-125 Out-of-bounds Read

The product reads data past the end, or before the beginning, of the intended buffer.

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/