CVE-2022-26126

frrouting: Misusing strdup leads to stack overflow in isis_nb_notifications.c

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Severity

Moderate

Red Hat Product Security

7.8

CVSS 3.1

Review impact separately from score.

Published · February 5, 2022

Updated · November 21, 2025

Description

frrouting is vulnerable to a flaw that can cause stack overflow due to processing binary data as simple string data. Since c string data is not being processed when processing packets , correct binary aware functions should be used. There is high impact to availability due to the fact that the process up-time can be made unreliable.

CVSS score applicability

The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.

Mitigation

No mitigation is specified in collected source.

CVSS / CWE

CVSS 3.1 · 7.8
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

CWE-120 · Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')