CVE-2026-3950

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 v3 3.3 LOW
CVSS v2.0 1.7 LOW

3.3^/10

CVSS v3 : LOW

Vector :

Exploitability : 1.8 / Impact : 1.4

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact LOW

Scope UNCHANGED

1.7^/10

CVSS v2.0 : LOW

Vector : AV:L/AC:L/Au:S/C:N/I:N/A:P

Exploitability : 3.1 / Impact : 2.9

Access Vector LOCAL

Access Complexity LOW

Authentication SINGLE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact PARTIAL

References

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

Configurations

No configuration.

History

11 Mar 2026, 20:16

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-03-11 20:16

Updated : 2026-03-12 21:08

NVD link : CVE-2026-3950

Mitre link : CVE-2026-3950

CVE.ORG link : CVE-2026-3950

JSON object : View

Products Affected

No product.

CWE

CWE-119

Improper Restriction of Operations within the Bounds of a Memory Buffer

CWE-125

Out-of-bounds Read

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