Is CVE-2021-43114 in the CISA KEV catalog?

No. CVE-2021-43114 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2021-43114?

CVE-2021-43114 has a CVSS v3 base score of 7.5 (HIGH).

What is the EPSS score for CVE-2021-43114?

CVE-2021-43114 has an EPSS score of 1.09% (62th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2021-43114?

Upgrade fort-validator on debian 11 to 1.5.3-1~deb11u1 or later.

CVE & CISA-KEV Catalog

CVE-2021-43114

HIGH

7.5

CVSS v3

NVD

Description

FORT Validator versions prior to 1.5.2 will crash if an RPKI CA publishes an X.509 EE certificate. This will lead to RTR clients such as BGP routers to lose access to the RPKI VRP data set, effectively disabling Route Origin Validation.

How to fix

Remediation Available

fort-validatorDebian

Fixed in:1.5.3-1~deb11u1CVE-2021-43114

Fixed in:1.5.2-1CVE-2021-43114

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 RequiredNone

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityNone

IntegrityNone

AvailabilityHigh

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Exploit Intelligence

1.09%probability of exploitation in 30 days

62ndpercentile

Moderate risk: more likely to be exploited than 62% of all known CVEs.

References

Patch1

github.com

Third-Party Advisory1

debian.org

Other references4

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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.