CVE-2019-5892

MEDIUMNVD 6.56.5—
EchelonGraph scoreMEDIUM confidence

Score 6.5 from GitHub Security Advisory published 2022-05-13. NVD baseline CVSS 6.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
Trending — 3 sources updated this week
6.5
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS: 3%CVSS: 6.5Exploit: NoneExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

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.

CVSS v3
6.5
EG Score
6.5(medium)
EG Risk
35(Track)
EG Risk 35/100SSVC: Track

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity65% × 45%
Exploitation3% × 40%
Automatability30% × 15%
Action: Routine — remediate on your standard cadence.
EPSS
84.5%
KEV
Not listed

Published

January 10, 2019

Last Modified

November 21, 2024

References (14)

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 14× in last 7d / 47× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

  1. 2026-07-23 01:46 UTCEG score recompute
  2. 2026-07-22 22:28 UTCEG score recompute
  3. 2026-07-22 14:05 UTCEPSS rescore
  4. 2026-07-21 15:22 UTCEPSS rescore
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  6. 2026-07-21 00:17 UTCOSV refresh
  7. 2026-07-20 17:04 UTCEPSS rescore
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  1. 2026-07-08 15:11 UTCEPSS rescore
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  9. 2026-07-03 19:26 UTCOSV refresh
  10. 2026-07-01 15:03 UTCEPSS rescore
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  27. 2026-06-21 01:57 UTCEPSS rescore
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  29. 2026-06-19 19:23 UTCEPSS rescore
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  31. 2026-06-18 17:50 UTCEPSS rescore
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  36. 2026-06-15 07:43 UTCOSV refresh
  37. 2026-06-14 23:15 UTCEPSS rescore
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  64. 2026-05-27 23:29 UTCEG score recompute
  65. 2026-05-27 23:29 UTCGHSA enrichment
  66. 2026-05-27 13:39 UTCEPSS rescore
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  72. 2026-05-24 16:47 UTCEPSS rescore

Frequently asked(5)

What is CVE-2019-5892?
CVE-2019-5892 is a medium vulnerability published on January 10, 2019. 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 ENABLEBGPVNC is used for Virtual Network Control, allows remote attackers to cause a denial of service (peering session flap)…
When was CVE-2019-5892 disclosed?
CVE-2019-5892 was first published in the National Vulnerability Database on January 10, 2019, with the most recent update on November 21, 2024. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2019-5892 actively exploited?
CVE-2019-5892 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 84.5% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2019-5892?
CVE-2019-5892 has a CVSS v3 base score of 6.5 (NVD).
How do I remediate CVE-2019-5892?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2019-5892, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

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