CVE-2026-3950 (GCVE-0-2026-3950)
Vulnerability from cvelistv5 – Published: 2026-03-11 19:02 – Updated: 2026-03-11 20:24
VLAI
EPSS
VEX
Title
strukturag libheif stsz/stts track.cc load out-of-bounds
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.
Severity
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-03-11 20:24 UTC
Assigner
References
7 references
| URL | Tags |
|---|---|
| https://vuldb.com/?id.350382 | vdb-entrytechnical-description |
| https://vuldb.com/?ctiid.350382 | signaturepermissions-required |
| https://vuldb.com/?submit.766431 | third-party-advisory |
| https://github.com/strukturag/libheif/issues/1715 | issue-tracking |
| https://github.com/Niebelungen-D/pocs/tree/main/h… | exploit |
| https://github.com/strukturag/libheif/pull/1721 | issue-trackingpatch |
| https://github.com/strukturag/libheif/ | product |
Impacted products
1 product
| Vendor | Product | Version | CPE status | |
|---|---|---|---|---|
| strukturag | libheif |
Affected:
1.21.0
Affected: 1.21.1 Affected: 1.21.2 |
guessed |
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