What’s Vulnerable › Vulnerabilities

CVE-2022-26126

• Severity: high (CVSS 7.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.1% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2022-03-03 · updated 2026-06-17
• Weakness: CWE-119

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.

Affected products

• Fedoraproject Fedora: 34, 35, 36
• FRRouting: before 8.2 — fixed in 8.2

How to fix

Upgrade to a fixed version: FRRouting 8.2. Check the vendor advisory for mitigations.

References

• https://github.com/FRRouting/frr/issues/10505
• https://lists.debian.org/debian-lts-announce/2024/04/msg00019.html
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/MIEQNIWUSBQTFR65HM2LLIB7PH27CZUZ/
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/VTYSAL4QCE4XWMMBKUB7LSLPAFLWUML4/
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/XUCZR6RYQVZ35BFUV7OLIUEHZW2433I2/
• https://github.com/FRRouting/frr/issues/10505
• https://lists.debian.org/debian-lts-announce/2024/04/msg00019.html
• https://lists.debian.org/debian-lts-announce/2024/09/msg00007.html
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/MIEQNIWUSBQTFR65HM2LLIB7PH27CZUZ/
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/VTYSAL4QCE4XWMMBKUB7LSLPAFLWUML4/
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/XUCZR6RYQVZ35BFUV7OLIUEHZW2433I2/

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