CVE catalog

CVE-2022-36440

frr: CVE-2022-36440

Severity: High · CVSS 7.5CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Published: Apr 3, 2023, 4:15:00 PM UTC
Source: [NVD] · [CVE record]
EPSS: 1.64% · Oct 25, 2026

A reachable assertion was found in Frrouting frr-bgpd 8.3.0 in the peek_for_as4_capability function. Attackers can maliciously construct BGP open packets and send them to BGP peers running frr-bgpd, resulting in DoS.

Vulnerable and fixed packages

Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.

Distribution	Package	Release	Version	Status
Debian	frr	sid	`10.7.1-6`	fixed
Debian	frr	forky	`10.7.1-6`	fixed
Debian	frr	trixie	`10.3-3+deb13u1`	fixed
Debian	frr	trixie-security	`10.3-3+deb13u1`	fixed
Debian	frr	bookworm	`8.4.4-1.1~deb12u2`	fixed
Debian	frr	bookworm-security	`8.4.4-1.1~deb12u2`	fixed

Fixed-version evidence

Distribution	Package	Type	Release	Fixed version	Urgency	Origin	Bugs
Debian	frr	source	sid	`8.4.1-1`	not yet assigned	Not reported	Not reported
Debian	frr	source	forky	`8.4.1-1`	not yet assigned	Not reported	Not reported
Debian	frr	source	trixie	`8.4.1-1`	not yet assigned	Not reported	Not reported
Debian	frr	source	bookworm	`8.4.1-1`	not yet assigned	Not reported	Not reported

OpenFactory catalog packages

Matching against OpenFactory catalog package versions is in progress.

[Debian 12 (Bookworm)]

[frr]Unknown
Details (4)
- 8.4.4-1.1~deb12u2 · amd64 · bookworm
  Fixed · Fixed: 8.4.1-1
  dsa · frr · debian · bookworm
- 8.4.4-1.1~deb12u2 · arm64 · bookworm
  Fixed · Fixed: 8.4.1-1
  dsa · frr · debian · bookworm
- 8.4.4-1.1~deb12u2 · amd64 · bookworm-security
  Fixed · Fixed: 8.4.1-1
  dsa · frr · debian · bookworm
- 8.4.4-1.1~deb12u2 · arm64 · bookworm-security
  Fixed · Fixed: 8.4.1-1
  dsa · frr · debian · bookworm
[frr-doc]Unknown
Source package: [frr]
Details (4)
- 8.4.4-1.1~deb12u2 · all · bookworm
  Fixed · Fixed: 8.4.1-1
  dsa · frr · debian · bookworm
- 8.4.4-1.1~deb12u2 · all · bookworm
  Fixed · Fixed: 8.4.1-1
  dsa · frr · debian · bookworm
- 8.4.4-1.1~deb12u2 · all · bookworm-security
  Fixed · Fixed: 8.4.1-1
  dsa · frr · debian · bookworm
- 8.4.4-1.1~deb12u2 · all · bookworm-security
  Fixed · Fixed: 8.4.1-1
  dsa · frr · debian · bookworm
[frr-pythontools]Unknown
Source package: [frr]
Details (4)
- 8.4.4-1.1~deb12u2 · all · bookworm
  Fixed · Fixed: 8.4.1-1
  dsa · frr · debian · bookworm
- 8.4.4-1.1~deb12u2 · all · bookworm
  Fixed · Fixed: 8.4.1-1
  dsa · frr · debian · bookworm
- 8.4.4-1.1~deb12u2 · all · bookworm-security
  Fixed · Fixed: 8.4.1-1
  dsa · frr · debian · bookworm
- 8.4.4-1.1~deb12u2 · all · bookworm-security
  Fixed · Fixed: 8.4.1-1
  dsa · frr · debian · bookworm
[frr-rpki-rtrlib]Unknown
Source package: [frr]
Details (4)
- 8.4.4-1.1~deb12u2 · amd64 · bookworm
  Fixed · Fixed: 8.4.1-1
  dsa · frr · debian · bookworm
- 8.4.4-1.1~deb12u2 · arm64 · bookworm
  Fixed · Fixed: 8.4.1-1
  dsa · frr · debian · bookworm
- 8.4.4-1.1~deb12u2 · amd64 · bookworm-security
  Fixed · Fixed: 8.4.1-1
  dsa · frr · debian · bookworm
- 8.4.4-1.1~deb12u2 · arm64 · bookworm-security
  Fixed · Fixed: 8.4.1-1
  dsa · frr · debian · bookworm
[frr-snmp]Unknown
Source package: [frr]
Details (4)
- 8.4.4-1.1~deb12u2 · amd64 · bookworm
  Fixed · Fixed: 8.4.1-1
  dsa · frr · debian · bookworm
- 8.4.4-1.1~deb12u2 · arm64 · bookworm
  Fixed · Fixed: 8.4.1-1
  dsa · frr · debian · bookworm
- 8.4.4-1.1~deb12u2 · amd64 · bookworm-security
  Fixed · Fixed: 8.4.1-1
  dsa · frr · debian · bookworm
- 8.4.4-1.1~deb12u2 · arm64 · bookworm-security
  Fixed · Fixed: 8.4.1-1
  dsa · frr · debian · bookworm

Observed: Oct 23, 2026, 6:28:48 PM UTC

References

[Debian Security Tracker] · [FIRST EPSS] · [OSV Package Vulnerability Database] · [Red Hat security advisories and VEX] · [SUSE security advisories and VEX]