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No exploitation reportedFix available

CVE-2023-38407

No exploitation reported by the sources we read.

  • Published2023-11-06
  • Fixed in8.5

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

Description

bgpd/bgp_label.c in FRRouting (FRR) before 8.5 attempts to read beyond the end of the stream during labeled unicast parsing.

Timeline

dates in UTC
  1. 2023-11-0606:15CVE publishedNVD

Versions per branch

NVD · CISA-ADP
Frrouting
BranchAffectedFixed in
8.5< 8.58.5

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Distribution builds and vendor advisories

Packages from OSV.dev and products from the vendors' CSAF advisories.

version not verifiedVersions not verified: read as OSV.dev and the vendors publish them, not checked against each vendor's release list.

Packages

  • frrUbuntu:Pro:20.04:LTSall versions · fixed in 7.2.1-1ubuntu0.2+esm2
  • frrUbuntu:24.04:LTSall versions · fixed in 8.4.4-1.1ubuntu3
  • frrUbuntu:22.04:LTSall versions · fixed in 8.1-1ubuntu1.8
  • frrTuxCare:AlmaLinux:9.2all versions · fixed in 8.3.1-5.el9.2.alma.tuxcare.els2and 1 other package
  • frrSUSE:Manager Server 4.3all versions · fixed in 7.4-150300.4.26.1
  • frrSUSE:Manager Proxy 4.3all versions · fixed in 7.4-150300.4.26.1
  • frrSUSE:Linux Enterprise Server for SAP Applications 15 SP4all versions · fixed in 7.4-150300.4.26.1
  • frrSUSE:Linux Enterprise Server for SAP Applications 15 SP3all versions · fixed in 7.4-150300.4.26.1

27 more package ranges on OSV.dev

Full record on NVD

Fix

  1. Update Frrouting to 8.5

Advisories and patches

Detection

Nuclei template
none so far
ProjectDiscovery
Exploit-DB
no entry
Exploit-DB
Proof of concept
Metasploit modules
none listed
Metasploit Framework

Sources

Identifiers

Technical details

CVSS v3 Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Published
2023-11-06
Last Modified
2026-06-17
NVD status
Modified
GitHub Advisory
GHSA-38fw-5cvw-p8h6

Frequently asked questions

What is CVE-2023-38407?

bgpd/bgp_label.c in FRRouting (FRR) before 8.5 attempts to read beyond the end of the stream during labeled unicast parsing.

Is CVE-2023-38407 actively exploited?

Active exploitation of CVE-2023-38407 has not been confirmed. Its EPSS score was 1.1% on 2026-11-08, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2023-38407?

CVE-2023-38407 has a CVSS v3 base score of 7.5 (HIGH severity), with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

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