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CVE-2019-5892
bgpd in FRRouting FRR (aka Free Range Routing) 2.x and 3.x before 3.0.4, 4.x before 4.0.1, 5.x before 5.0.2, and 6.x before 6.0.2 (not…
Medium6.5EPSS 2.7%
- Published
- Updated
- Reserved
- Assigned by
- mitre
Description
bgpd in FRRouting FRR (aka Free Range Routing) 2.x and 3.x before 3.0.4, 4.x before 4.0.1, 5.x before 5.0.2, and 6.x before 6.0.2 (not affecting Cumulus Linux or VyOS), when ENABLE_BGP_VNC is used for Virtual Network Control, allows remote attackers to cause a denial of service (peering session flap) via attribute 255 in a BGP UPDATE packet. This occurred during Disco in January 2019 because FRR does not implement RFC 7606, and therefore the packets with 255 were considered invalid VNC data and the BGP session was closed.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 3.0 | Medium6.5 | CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
- EPSS (exploitation in 30 days)
- 2.7% · top 14% of all CVEs (5 Nov 2026)
Loading the EPSS history…
The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 6.5.
Weakness
Affected products
n/a
- affected n/a
References (7)
- https://github.com/FRRouting/frr/releases/tag/frr-3.0.4 (opens in a new tab)x_refsource_MISCx_transferred
- https://lists.frrouting.org/pipermail/frog/2019-January/000404.html (opens in a new tab)x_refsource_MISCx_transferred
- https://github.com/FRRouting/frr/releases/tag/frr-5.0.2 (opens in a new tab)x_refsource_MISCx_transferred
- https://github.com/FRRouting/frr/releases/tag/frr-6.0.2 (opens in a new tab)x_refsource_MISCx_transferred
- https://github.com/FRRouting/frr/commit/943d595a018e69b550db08cccba1d0778a86705a (opens in a new tab)x_refsource_MISCx_transferred
- https://frrouting.org/community/security/cve-2019-5892.html (opens in a new tab)x_refsource_CONFIRMx_transferred
- https://github.com/FRRouting/frr/releases/tag/frr-4.0.1 (opens in a new tab)x_refsource_MISCx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://trackcve.app/cve/CVE-2019-5892)Record last updated .