CVE-2025-39690 iio: accel: sca3300: fix uninitialized iio scan data
An attacker can read uninitialized stack memory from the sca3300 accelerometer driver, potentially exposing sensitive kernel data.
- 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-2025-39690?
CVE-2025-39690 is a medium-severity vulnerability in Linux kernel, published on 5 Sep 2025. 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:
iio: accel: sca3300: fix uninitialized iio scan data
Fix potential leak of uninitialized stack data to userspace by ensuring that the `channels` array is zeroed before use.
Weakness: CWE-908
Which versions are affected by CVE-2025-39690?
It affects 1 product.
Products include Linux kernel.
How do I fix CVE-2025-39690?
Apply the vendor's patch.
Is CVE-2025-39690 being exploited?
There is no known exploitation of CVE-2025-39690 in the wild and no public exploit code.
Other vulnerabilities in Linux kernel
Sources
Also known as BELL-CVE-2025-39690, DEBIAN-CVE-2025-39690, GHSA-pgwv-vmhf-qqmw, UBUNTU-CVE-2025-39690.