CVE-2022-36440: debian debian_linux Reachable Assertion
CVSS: 7.5v3.1HighModified
AliasesUBUNTU-CVE-2022-36440DEBIAN-CVE-2022-36440
Published 03-04-2023Last modified 03-08-2024
Vulnerability summary
CVE-2022-36440 is a high (CVSS 7.5) Reachable Assertion vulnerability in debian debian_linux. EPSS estimates a 1.64% chance of exploitation in the next 30 days, higher than 76% of scored vulnerabilities. 1 public exploit is recorded.
CVSS score
7.5/10
010
High · v3.1 (NVD)EPSS score
1.64%
0%100%
Low · 0.00 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits1github
Advisory lineage
Upstream 0 · Downstream 2Timeline
- 03-04-2023PublishedVulnerability first disclosed.
- 03-08-2024Last modifiedVulnerability information updated.
Description
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.
CVSS metrics
3 scores · 3 sources · 1 versionHigh 7.5Preferred score · NVD (NIST)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:HSourcesAll 3 agree
- OSV · UbuntuEcosystem advisory · calculated7.5HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- OSV · DebianEcosystem advisory · calculated7.5HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
EPSS trend
Probability
1.64%
Chance of exploitation in the next 30 days
Percentile
76%
Versus all other CVEs
30-day change
0.00 pp
From 1.64% on 20-09-2026
20-09-202620-10-2026
EPSS score1.64%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
1 foundPocs
Maturity: poc
Weaknesses
CWE · root causeAffected systems
Debian2 products
- frr< 8.4.1-1
- debian_linuxEOL10.0 | 11.0 | 12.0
Fedoraproject1 product
- fedoraEOL36 | 37 | 38
Frrouting1 product
- frrouting8.3
Ubuntu1 product
- frr< 7.2.1-1ubuntu0.2 | < 8.1-1ubuntu1.3
4 vendors · 5 products
References
10 links- github.com/spwpun/pocsThird Party Advisory
