CVE-2026-36909 Null dereference in n/a

Medium 6.2 Published Updated

Attackers can cause a Denial of Service in MPC-BE by tricking users into opening a crafted MP4 file, leading to a crash.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Local or same network only
Victim action needed
Not needed
Fix
None listed

What is CVE-2026-36909?

CVE-2026-36909 is a medium-severity vulnerability in n/a, published on 1 Jul 2026. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

A NULL pointer dereference in the AP4_TkhdAtom::GetTrackId() function of Aleksoid1978 MPC-BE before commit 4341cb3 allows attackers to cause a Denial of Service (DoS) via a crafted MP4 file.

Weakness: CWE-476

Which versions are affected by CVE-2026-36909?

How do I fix CVE-2026-36909?

No fix has been published for CVE-2026-36909 yet. Limit exposure of the affected software until one is available.

Is CVE-2026-36909 being exploited?

There is no known exploitation of CVE-2026-36909 in the wild and no public exploit code.

Sources

Also known as GHSA-2hw2-5mr3-w7wm.

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