Is CVE-2019-5892 in the CISA KEV catalog?

No. CVE-2019-5892 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2019-5892?

CVE-2019-5892 has a CVSS v3 base score of 6.5 (MEDIUM).

What is the EPSS score for CVE-2019-5892?

CVE-2019-5892 has an EPSS score of 2.72% (84th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2019-5892?

Upgrade frrouting to 6.0.2 or later.

CVE & CISA-KEV Catalog

CVE-2019-5892

MEDIUMEPSS 84th pctl

6.5

CVSS v3

NVD

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.

CWE-436

How to fix

Remediation Available

frroutingNVD

Affected:>= 6.0, < 6.0.2Fixed in:6.0.2CVE-2019-5892derived from NVD

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredLow

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityNone

IntegrityNone

AvailabilityHigh

CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Exploit Intelligence

2.72%probability of exploitation in 30 days

84thpercentile

Elevated risk: more likely to be exploited than 84% of all known CVEs.

References

Patch2

Vendor Advisory1

frrouting.org

Third-Party Advisory4

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2024-11-21.