CVE-2025-43967 Null dereference in libheif
A NULL pointer dereference in libheif allows attackers to cause a denial of service via a crafted grid image referencing a nonexistent item.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2025-43967?
CVE-2025-43967 is a low-severity vulnerability in struktur libheif, published on 20 Apr 2025. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
libheif before 1.19.6 has a NULL pointer dereference in ImageItem_Grid::get_decoder in image-items/grid.cc because a grid image can reference a nonexistent image item.
Weakness: CWE-476
Which versions are affected by CVE-2025-43967?
It affects 1 product.
Products include Struktur Libheif.
How do I fix CVE-2025-43967?
Upgrade to a fixed version.
Is CVE-2025-43967 being exploited?
There is no known exploitation of CVE-2025-43967 in the wild and no public exploit code.
Other vulnerabilities in struktur libheif
Sources
Also known as DEBIAN-CVE-2025-43967, ECHO-5f1c-c6a2-b5c3, GHSA-c48q-x6xw-g5h8.