CVE-2025-30334 OpenBSD wg(4) kernel crash
Traffic sent over the WireGuard interface can cause a kernel crash, leading to denial of service on OpenBSD systems.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2025-30334?
CVE-2025-30334 is a high-severity denial of service vulnerability in Openbsd Openbsd, published on 20 Mar 2025. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
In OpenBSD 7.6 before errata 006 and OpenBSD 7.5 before errata 015, traffic sent over wg(4) could result in kernel crash.
Weakness: CWE-131
Which versions are affected by CVE-2025-30334?
It affects 1 product.
Products include Openbsd Openbsd.
How do I fix CVE-2025-30334?
No fix has been published for CVE-2025-30334 yet. Limit exposure of the affected software until one is available.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is CVE-2025-30334 being exploited?
There is no known exploitation of CVE-2025-30334 in the wild and no public exploit code.
Other vulnerabilities in Openbsd Openbsd
Sources
Also known as GHSA-pxc8-qhvr-5954.