Is CVE-2022-1388 in the CISA KEV catalog?

Yes. CVE-2022-1388 is on the CISA Known Exploited Vulnerabilities list, added 2022-05-10, and has known ransomware campaign use.

What is the CVSS severity of CVE-2022-1388?

CVE-2022-1388 has a CVSS v3 base score of 9.8 (CRITICAL).

What is the EPSS score for CVE-2022-1388?

CVE-2022-1388 has an EPSS score of 99.96% (100th percentile), estimating the probability of exploitation in the next 30 days.

CVE & CISA-KEV Catalog

CVE-2022-1388

CRITICALCISA KEVEPSS 100th pctl

9.8

CVSS v3

NVD

Description

On F5 BIG-IP 16.1.x versions prior to 16.1.2.2, 15.1.x versions prior to 15.1.5.1, 14.1.x versions prior to 14.1.4.6, 13.1.x versions prior to 13.1.5, and all 12.1.x and 11.6.x versions, undisclosed requests may bypass iControl REST authentication. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated

CWE-306

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredNone

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

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

Exploit Intelligence

99.96%probability of exploitation in 30 days

100thpercentile

Very high risk: more likely to be exploited than 100% of all known CVEs.

Known Exploited Vulnerability (CISA KEV)

F5 BIG-IP Missing Authentication Vulnerability

F5 BIG-IP contains a missing authentication in critical function vulnerability which can allow for remote code execution, creation or deletion of files, or disabling services.

Apply updates per vendor instructions.

Remediation due: 2022-05-31

Associated with ransomware campaigns

References

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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 2025-10-27.