CVE-2022-36440

frr: Reachable assertion in peek_for_as4_capability function

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Severity

Moderate

Red Hat Product Security

7.5

CVSS 3.1

Review impact separately from score.

Published · April 4, 2023

Updated · November 21, 2025

Description

A reachable assertion flaw was found in Frrouting frr-bgpd in the peek_for_as4_capability function. This flaw allows an attacker to maliciously construct BGP open packets and send them to BGP peers running frr-bgpd, resulting in a denial of service.

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 · 7.5
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CWE-617 · Reachable Assertion