CVE-2025-21741 usbnet: ipheth: fix DPE OoB read
An out-of-bounds read in the Linux kernel's ipheth driver allows attackers to cause denial of service or disclose sensitive memory information.
- 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-2025-21741?
CVE-2025-21741 is a high-severity memory corruption vulnerability in Linux kernel, published on 27 Feb 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:
usbnet: ipheth: fix DPE OoB read
Fix an out-of-bounds DPE read, limit the number of processed DPEs to the amount that fits into the fixed-size NDP16 header.
Weakness: CWE-125
Which versions are affected by CVE-2025-21741?
It affects 1 product.
Products include Linux kernel.
How do I fix CVE-2025-21741?
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-2025-21741 being exploited?
There is no known exploitation of CVE-2025-21741 in the wild and no public exploit code.
Other vulnerabilities in Linux kernel
Sources
Also known as BELL-CVE-2025-21741, DEBIAN-CVE-2025-21741, GHSA-ch46-7v57-76j7, ROOT-OS-UBUNTU-2404-CVE-2025-21741, UBUNTU-CVE-2025-21741.