Is CVE-2021-36213 in the CISA KEV catalog?

No. CVE-2021-36213 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2021-36213?

CVE-2021-36213 has a CVSS v3 base score of 7.5 (HIGH).

What is the EPSS score for CVE-2021-36213?

CVE-2021-36213 has an EPSS score of 1.74% (75th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2021-36213?

Upgrade HashiCorp Consul to 1.10.1 or later.

CVE & CISA-KEV Catalog

CVE-2021-36213

HIGHEPSS 75th pctl

7.5

CVSS v3

NVD

Description

HashiCorp Consul and Consul Enterprise 1.9.0 through 1.10.0 default deny policy with a single L7 application-aware intention deny action cancels out, causing the intention to incorrectly fail open, allowing L4 traffic. Fixed in 1.9.8 and 1.10.1.

How to fix

Remediation Available

HashiCorp ConsulWindows application

Affected:1.10.0 1.10.1Fixed in:1.10.1HashiCorp

Affected:1.9.0 1.9.8Fixed in:1.9.8HashiCorp

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

IntegrityHigh

AvailabilityNone

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

Exploit Intelligence

1.74%probability of exploitation in 30 days

75thpercentile

Elevated risk: more likely to be exploited than 75% of all known CVEs.

References

Vendor Advisory2

Third-Party Advisory2

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Markdown

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HTML

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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.