CVE-2026-68412 wifi: cfg80211: Fix an error handling path in cfg80211_wext_siwscan()
A memory leak in the Linux kernel Wi-Fi configuration allows local attackers to cause a denial of service by triggering an error path.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2026-68412?
CVE-2026-68412 is a memory corruption vulnerability in Linux, published on 10 Aug 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: cfg80211: Fix an error handling path in cfg80211_wext_siwscan()
If the test against IEEE80211_MAX_SSID_LEN fails, then 'creq' leaks. Use the existing error handling path to fix it.
Which versions are affected by CVE-2026-68412?
How do I fix CVE-2026-68412?
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-2026-68412 being exploited?
There is no known exploitation of CVE-2026-68412 in the wild and no public exploit code.
Sources
Also known as AZL-94877, BELL-CVE-2026-68412, DEBIAN-CVE-2026-68412, GHSA-xpf7-vhxr-qr93, UBUNTU-CVE-2026-68412.