CVE-2026-3950

LOW EPSS 2.0%
Published Mar 11, 20263mo ago · Modified Jun 17, 20262w ago
1.9 CVSS 4.0
Low
Find Similar
Published Mar 11, 2026 3mo ago
Last Modified Jun 17, 2026 2w ago

Description

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.

CVSS Details

Base Score
1.9
Exploitability
—
Impact
—
Vector string
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
Attack Vector Local
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope X

Threat Intelligence

EPSS Exploit Probability
2.0% percentile
Exploit & Patch Status
No Known Exploit
No Patch Available

Weaknesses 2

CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer Memory Safety
CWE-125 Out-of-bounds Read Memory Safety

References 7

  • github.com https://github.com/Niebelungen-D/pocs/tree/main/heif_dec_sequence_chunk_idx_oob
  • github.com https://github.com/strukturag/libheif/
  • github.com https://github.com/strukturag/libheif/issues/1715
  • github.com https://github.com/strukturag/libheif/pull/1721
  • vuldb.com https://vuldb.com/?ctiid.350382
  • vuldb.com https://vuldb.com/?id.350382
  • vuldb.com https://vuldb.com/?submit.766431

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.