CVE-2022-26126 Memory corruption in FRRouting
Buffer overflow in FRRouting allows attackers to execute arbitrary code or cause denial of service via crafted ISIS notifications.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- A user has to click or open something
- Fix
- Available
What is CVE-2022-26126?
CVE-2022-26126 is a high-severity memory corruption vulnerability in Fedoraproject Fedora, published on 3 Mar 2022. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.
Official description
Buffer overflow vulnerabilities exist in FRRouting through 8.1.0 due to the use of strdup with a non-zero-terminated binary string in isis_nb_notifications.c.
Weakness: CWE-119
Which versions are affected by CVE-2022-26126?
It affects 2 products.
Products include Fedoraproject Fedora, Frrouting Frrouting.
How do I fix CVE-2022-26126?
Upgrade to a fixed version.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2022-26126 being exploited?
There is no known exploitation of CVE-2022-26126 in the wild and no public exploit code.
Other vulnerabilities in Fedoraproject Fedora
Sources
Also known as CLEANSTART-2025-TL74992, DEBIAN-CVE-2022-26126, GHSA-mv8p-w8jf-x9q9, UBUNTU-CVE-2022-26126.