CVE-2026-42478 Null dereference in n/a
Attackers can cause denial of service in Open CASCADE Technology via crafted VRML files triggering null pointer dereference.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-42478?
CVE-2026-42478 is a medium-severity vulnerability in n/a, published on 1 May 2026. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
An issue was discovered in VrmlData_IndexedFaceSet::TShape in the VRML V2.0 parser in Open CASCADE Technology (OCCT) V8_0_0_rc5 allows attackers to cause a denial of service via a crafted VRML file. The issue occurs because malformed VRML input can trigger dereference of a corrupt or unvalidated pointer during shape construction in libTKDEVRML.so.
Which versions are affected by CVE-2026-42478?
It affects 1 product.
Products include Opencascade Open Cascade Technology.
How do I fix CVE-2026-42478?
No fix has been published for CVE-2026-42478 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-42478 being exploited?
There is no known exploitation of CVE-2026-42478 in the wild and no public exploit code.
Other vulnerabilities in n/a
Sources
Also known as DEBIAN-CVE-2026-42478, GHSA-9mvh-w57g-g5m8, UBUNTU-CVE-2026-42478.