Is CVE-2026-3950 actively exploited?

No active exploitation of CVE-2026-3950 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2026-3950 be exploited remotely?

No. CVE-2026-3950 requires local access to exploit.

What is the CVSS score of CVE-2026-3950?

CVE-2026-3950 has a CVSS score of 3.3 (LOW).

HOME VULNERABILITIESCVE-2026-3950

LOW

CVE-2026-3950

CWE-119Published: March 11, 2026· Updated: Mar 12, 2026

3.3

CVSS v3.1

EPSS:0.01%probability of exploitation in 30 daysPercentile:2.0th

Official 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.

NVD Source

Technical Analysis

CVE-2026-3950 requires local access, meaning attackers must already have a foothold on the target system.

Exploitation requires low privileges, which limits the exposure to scenarios where an attacker has already gained initial access.

From a weakness classification perspective (CWE-119): Buffer overflow vulnerabilities can lead to arbitrary code execution or denial of service by corrupting adjacent memory.