CVE-2026-93797 wifi: iwlwifi: mvm: fix an off-by-1 boundary check
An off-by-one error in the iwlwifi driver allows attackers to trigger memory corruption, potentially leading to system crashes or code execution.
- 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-2026-93797?
CVE-2026-93797 is a memory corruption vulnerability in Linux, published on 24 Sep 2026. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
In the Linux kernel, the following vulnerability has been resolved:
wifi: iwlwifi: mvm: fix an off-by-1 boundary check
Before looking at the 11th byte, check the length is big enough.
Which versions are affected by CVE-2026-93797?
How do I fix CVE-2026-93797?
Apply the vendor's patch.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2026-93797 being exploited?
There is no known exploitation of CVE-2026-93797 in the wild and no public exploit code.
Sources
Also known as AZL-104003, BELL-CVE-2026-93797, DEBIAN-CVE-2026-93797, GHSA-39xh-5fv6-7c9x, UBUNTU-CVE-2026-93797.