Is CVE-2021-23005 in the CISA KEV catalog?

No. CVE-2021-23005 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2021-23005?

CVE-2021-23005 has a CVSS v3 base score of 9.1 (CRITICAL).

What is the EPSS score for CVE-2021-23005?

CVE-2021-23005 has an EPSS score of 1.00% (59th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2021-23005?

Upgrade big-iq centralized management to 8.0.0 or later.

CVE & CISA-KEV Catalog

CVE-2021-23005

CRITICAL

9.1

CVSS v3

NVD

Description

On all 7.x and 6.x versions (fixed in 8.0.0), when using a Quorum device for BIG-IQ high availability (HA) for automatic failover, BIG-IQ does not make use of Transport Layer Security (TLS) with the Corosync protocol. Note: Software versions which have reached End of Software Development (EoSD) are not evaluated.

How to fix

Remediation Available

big-iq centralized managementNVD

Affected:>= 6.0.0, < 8.0.0Fixed in:8.0.0CVE-2021-23005derived 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 RequiredNone

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityHigh

AvailabilityNone

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

Exploit Intelligence

1.00%probability of exploitation in 30 days

59thpercentile

Moderate risk: more likely to be exploited than 59% of all known CVEs.

References

Vendor Advisory1

support.f5.com

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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.