How severe is CVE-2022-1388?

CVE-2022-1388 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2022-1388 being actively exploited?

Yes. CVE-2022-1388 is on CISA's Known Exploited Vulnerabilities (KEV) catalog, added on 2022-05-10, which means active exploitation has been confirmed. It should be prioritised for remediation.

What products are affected by CVE-2022-1388?

CVE-2022-1388 primarily affects F5 Big-ip Access Policy Manager. In total, 11 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2022-1388?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Because this CVE is known to be actively exploited, treat remediation as urgent — CISA KEV typically sets a short remediation deadline.

Does CVE-2022-1388 have an EU (EUVD) identifier?

Yes. CVE-2022-1388 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2022-24705. It is also flagged as exploited in the EUVD (since 2022-05-10).

When was CVE-2022-1388 published?

CVE-2022-1388 was published on 2022-05-05 and last updated on 2026-06-17.

CVE-2022-1388

CVE-2022-1388 is a critical-severity vulnerability in F5 Big-ip Access Policy Manager with a CVSS 3.x base score of 9.8. It is listed in CISA's Known Exploited Vulnerabilities (KEV) catalog, confirming it has been exploited in the wild (added 2022-05-10). The underlying weakness is classified as CWE-306.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
CVSS v2: 7.5
EPSS exploit prediction: 100% (100th percentile)
Actively exploited: Yes — listed in CISA KEV (added 2022-05-10)
EU (EUVD) id: EUVD-2022-24705
EU exploitation: Flagged exploited in the ENISA EU Vulnerability Database (since 2022-05-10)
Weakness: CWE-306
Affected product: F5 Big-ip Access Policy Manager
Published: 2022-05-05
Last modified: 2026-06-17

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

Frequently asked questions

What is CVE-2022-1388?: 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
How severe is CVE-2022-1388?: CVE-2022-1388 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2022-1388 being actively exploited?: Yes. CVE-2022-1388 is on CISA's Known Exploited Vulnerabilities (KEV) catalog, added on 2022-05-10, which means active exploitation has been confirmed. It should be prioritised for remediation.
What products are affected by CVE-2022-1388?: CVE-2022-1388 primarily affects F5 Big-ip Access Policy Manager. In total, 11 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2022-1388?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Because this CVE is known to be actively exploited, treat remediation as urgent — CISA KEV typically sets a short remediation deadline.
Does CVE-2022-1388 have an EU (EUVD) identifier?: Yes. CVE-2022-1388 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2022-24705. It is also flagged as exploited in the EUVD (since 2022-05-10).
When was CVE-2022-1388 published?: CVE-2022-1388 was published on 2022-05-05 and last updated on 2026-06-17.

References

Affected products (11)

cpe:2.3:a:f5:big-ip_access_policy_manager:*:*:*:*:*:*:*:*
cpe:2.3:a:f5:big-ip_advanced_firewall_manager:*:*:*:*:*:*:*:*
cpe:2.3:a:f5:big-ip_analytics:*:*:*:*:*:*:*:*
cpe:2.3:a:f5:big-ip_application_acceleration_manager:*:*:*:*:*:*:*:*
cpe:2.3:a:f5:big-ip_application_security_manager:*:*:*:*:*:*:*:*
cpe:2.3:a:f5:big-ip_domain_name_system:*:*:*:*:*:*:*:*
cpe:2.3:a:f5:big-ip_fraud_protection_service:*:*:*:*:*:*:*:*
cpe:2.3:a:f5:big-ip_global_traffic_manager:*:*:*:*:*:*:*:*
cpe:2.3:a:f5:big-ip_link_controller:*:*:*:*:*:*:*:*
cpe:2.3:a:f5:big-ip_local_traffic_manager:*:*:*:*:*:*:*:*
cpe:2.3:a:f5:big-ip_policy_enforcement_manager:*:*:*:*:*:*:*:*

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