CVE-2019-5892

mediumpriority · track · 27EPSS 0.027 · 86 %ileEUUS

grimoire priorityP3 · Track

Exploitable?

—

no known exploitation

Likely / severe?

2.72% (86th) EPSS

CVSS 4 · medium

Is it mine?

6 products

Check your exposure

Who says so?

3 sources

cnnvd · enisa_euvd · nvd

EPSS · scored 2026-10-28

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

Technical severity, 0–10. One row per scoring source.

6.5

010

base score 0–10 · higher = more severe · hover a vector to decode

v2.04mediumAV:N/AC:L/Au:S/C:N/I:N/A:Pprimary · NVD / NIST USexploitability 8 · impact 2.9

v3.06.5mediumCVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:Hprimary · NVD / NIST USexploitability 2.8 · impact 3.6

v3.06mediumCVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H/E:Usecondary · CVSS-BT (t0sche)

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-436USprimary

affected products (6)

Products and version ranges known to be affected.

n/a n/a≤ n/aenisa_euvdEU
frrouting frrouting2.0 → 2.0.2nvdUScpe:2.3:a:frrouting:frrouting:*:*:*:*:*:*:*:*
frrouting frrouting3.0 → 3.0.4nvdUScpe:2.3:a:frrouting:frrouting:*:*:*:*:*:*:*:*
frrouting frrouting= 4.0nvdUScpe:2.3:a:frrouting:frrouting:*:*:*:*:*:*:*:*
frrouting frrouting5.0 → 5.0.2nvdUScpe:2.3:a:frrouting:frrouting:*:*:*:*:*:*:*:*
frrouting frrouting6.0 → 6.0.2nvdUScpe:2.3:a:frrouting:frrouting:*:*:*:*:*:*:*:*

also known as (3)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd nvd NVD CVE.org MITRE

published 2019-01-10modified 2026-06-17

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+202 more

references (21)

External citations — patches, advisories, analysis.

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