CVE-2022-26125 Memory corruption in FRRouting
A buffer overflow in FRRouting's IS-IS protocol allows attackers to execute arbitrary code or cause denial of service via crafted packets.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2022-26125?
CVE-2022-26125 is a high-severity memory corruption vulnerability in FRRouting, published on 3 Mar 2022. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
Buffer overflow vulnerabilities exist in FRRouting through 8.1.0 due to wrong checks on the input packet length in isisd/isis_tlvs.c.
Which versions are affected by CVE-2022-26125?
It affects 1 product.
Linux distribution packages (5)
frr AlmaLinux:9 | All versions | 8.2.2-4.el9 |
frr Red Hat:enterprise_linux:9::appstream | All versions | 0:8.2.2-4.el9 |
frr-debuginfo Red Hat:enterprise_linux:9::appstream | All versions | 0:8.2.2-4.el9 |
frr-debugsource Red Hat:enterprise_linux:9::appstream | All versions | 0:8.2.2-4.el9 |
frr Rocky Linux:9 | All versions | 0:8.2.2-4.el9 |
Products include Frrouting Frrouting.
How do I fix CVE-2022-26125?
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-2022-26125 being exploited?
There is no known exploitation of CVE-2022-26125 in the wild and no public exploit code.
Other vulnerabilities in FRRouting
Sources
Also known as ALSA-2022:8112, CLEANSTART-2025-DQ89362, DEBIAN-CVE-2022-26125, GHSA-9hg8-8wq3-mhhg, RHSA-2022:8112, RLSA-2022:8112 and 1 more.