CVE-2026-3950
4.8
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
Summary
A vulnerability was identified in strukturag libheif up to 1.21.2. This impacts the function Track::load of the file libheif/sequences/track.cc of the component stsz/stts. The manipulation leads to out-of-bounds read. The attack needs to be performed locally. The exploit is publicly available and might be used. Applying a patch is the recommended action to fix this issue. The patch available is inofficial and not approved yet.
Affected Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| strukturag | libheif | 1.21.0 | affected |
| strukturag | libheif | 1.21.1 | affected |
| strukturag | libheif | 1.21.2 | affected |
Weaknesses
- CWE-125: Out-of-Bounds Read
- CWE-119: Memory Corruption
ADP Enrichment
CISA ADP Vulnrichment
- SSVC:
- Exploitation: poc
- Automatable: no
- Technical Impact: partial
References
- https://vuldb.com/?id.350382
- https://vuldb.com/?ctiid.350382
- https://vuldb.com/?submit.766431
- https://github.com/strukturag/libheif/issues/1715
- https://github.com/Niebelungen-D/pocs/tree/main/heif_dec_sequence_chunk_idx_oob
- https://github.com/strukturag/libheif/pull/1721
- https://github.com/strukturag/libheif/
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