VDB
CVE-2026-3950
CVE-2026-3950
PUBLISHED
CVSS 1.899999976158142 LOW
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.
EPSS 0.12% · 2.0th percentile
Risk Scores
CVSS 4.0
1.899999976158142
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
EPSS Score
0.12%
2.0th percentile
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| strukturag | libheif | 1.21.0, 1.21.1, 1.21.2 |
Timeline
- Mar 11, 2026 CVE Published
- Mar 11, 2026 PoC Published
- Mar 11, 2026 CVE Updated
- Mar 12, 2026 EPSS Score
- Mar 13, 2026 EPSS Score
- Mar 14, 2026 EPSS Score
- Mar 15, 2026 EPSS Score
- Mar 16, 2026 EPSS Score
- Mar 17, 2026 EPSS Score
- Mar 18, 2026 EPSS Score
- Mar 19, 2026 EPSS Score
- Mar 20, 2026 EPSS Score
References
- https://vuldb.com/?submit.766431 url
- https://github.com/strukturag/libheif/ technical
- https://vuldb.com/?ctiid.350382 technical
- https://vuldb.com/?id.350382 technical
- https://nvd.nist.gov/vuln/detail/CVE-2026-3950 advisory
- https://github.com/strukturag/libheif/issues/1715 issue
- https://github.com/Niebelungen-D/pocs/tree/main/heif_dec_sequence_chunk_idx_oob exploit
- https://github.com/strukturag/libheif/pull/1721 technical
- https://github.com/strukturag/libheif url