How severe is CVE-2022-1388?

CVE-2022-1388 has a CVSS score of 9.8/10, rated CRITICAL. Immediate patching is strongly recommended.

Which packages are affected by CVE-2022-1388?

Affected package information for CVE-2022-1388 is not yet fully mapped. Check the official advisory links for details.

How do I fix CVE-2022-1388?

No fixed version has been published for CVE-2022-1388 yet. Monitor the advisory for updates, apply mitigations recommended by the vendor, and use O3 Security to track when a fix becomes available in your stack.

Is CVE-2022-1388 actively exploited in the wild?

Yes. There are 79 known exploit references for CVE-2022-1388, including 1 documented proof-of-concept exploit on Exploit-DB and 50 in-the-wild exploitations observed on GitHub and other sources. Treat this as actively exploitable and prioritize patching immediately. All exploit code should only be run in an isolated sandbox environment for research or authorized testing — never against production systems without explicit written authorization.

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

CVE-2022-1388 has an EPSS (Exploit Prediction Scoring System) score of 94.5%, placing it in the 100th percentile of all CVEs. EPSS is maintained by FIRST.org and estimates the probability that a vulnerability will be exploited in the wild within the next 30 days. A score above 50% indicates significantly elevated exploitation risk — immediate patching is strongly recommended.

Is CVE-2022-1388 in the CISA Known Exploited Vulnerabilities catalog?

Yes. CVE-2022-1388 (F5 BIG-IP Missing Authentication Vulnerability) was added to CISA's Known Exploited Vulnerabilities (KEV) catalog on 2022-05-10. CISA required all US federal civilian agencies to remediate this vulnerability by 2022-05-31. The required action was: Apply updates per vendor instructions. This CVE has been used in known ransomware campaigns. Being listed in the KEV catalog is the strongest possible confirmation of active exploitation — treat this as a critical priority.

What type of vulnerability is CVE-2022-1388?

CVE-2022-1388 is classified as Missing Authentication (CWE-306). This weakness type describe the underlying flaw category, which helps determine the potential impact and the right class of mitigation.

Which products and versions are affected by CVE-2022-1388?

CVE-2022-1388 affects f5 big-ip access policy manager; f5 big-ip advanced firewall manager; f5 big-ip analytics; f5 big-ip application acceleration manager, and 7 more product(s). Check the affected-products list on this page against your deployed version to confirm exposure.

Is there exploit tooling available for CVE-2022-1388?

A Nuclei detection template exists for CVE-2022-1388, meaning automated scanners can fingerprint it. Public exploit tooling significantly increases real-world risk — prioritize patching and ensure detection coverage. Exploit tooling should only ever be used in isolated, authorized testing environments.

When was CVE-2022-1388 published, and has it been updated?

CVE-2022-1388 was published on May 5, 2022 and was last updated on October 27, 2025. Advisory data evolves as severity scores, affected ranges, and exploit intelligence are revised — always check the latest version of the advisory before acting.

CISA KEV·Added 2022-05-10 — agencies required to remediate by 2022-05-31 · Ransomware

CVE-2022-1388

CRITICAL

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,…

Published

May 5, 2022

Updated

Oct 27, 2025

Affected

0 pkgs

Patched

None yet

Exploits

79 known

EPSS Exploitation Probability

via FIRST.org ↗

94.5%probability of exploitation in next 30 days

Very High Risk100th percentile0.00%

EPSS (Exploit Prediction Scoring System) is a daily probability model maintained by FIRST.org. It estimates the likelihood a CVE will be exploited in production environments within the next 30 days, derived from real-world threat intelligence signals.

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

Affected Products

11 products · 66 configurations

Application

big-ip access policy managerf5

≥ 16.1.0 && ≤ 12.1.6

range

Application

big-ip advanced firewall managerf5

≥ 16.1.0 && ≤ 12.1.6

range

Application

big-ip analyticsf5

≥ 16.1.0 && ≤ 12.1.6

range

Application

big-ip application acceleration managerf5

≥ 16.1.0 && ≤ 12.1.6

range

Application

big-ip application security managerf5

≥ 16.1.0 && ≤ 12.1.6

range

Application

big-ip domain name systemf5

≥ 16.1.0 && ≤ 12.1.6

range

Exploits & PoCs

Research use only. For defensive security, authorized penetration testing, and academic research only. Never execute exploit code against systems without explicit written authorization.

EDB-50932remotemultiple

F5 BIG-IP 16.0.x - Remote Code Execution (RCE)

by Yesith Alvarez · May 12, 2022

Exploit-DB Source

Frequently Asked Questions

O3 Security · Impact-Aware SCA

Is CVE-2022-1388 in your stack?

O3 detects CVE-2022-1388 across dependencies and uses function-level reachability to confirm whether the vulnerable code path is actually reachable — not just present. No false positives.

Scan my stack How O3 SCA works

CVSS Score

9.8/10

CVSS v3 base score

Vector breakdown

AV:Attack Vector

Network

AC:Attack Complexity

Low

PR:Privileges Required

None

UI:User Interaction

None

S:Scope

Unchanged

C:Confidentiality

High

I:Integrity

High

A:Availability

High

Raw vector

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

CWE Classification

CWE-306Missing Authentication

Weaponization

Timeline

Disclosed

May 5, 2022

KEV added

May 10, 2022

First exploit

May 12, 2022

6 days after disclosure — rapid exploitation

Last updated

Oct 27, 2025

Identifiers

CVE-2022-1388

References

Advisorysupport.f5.com Advisorysupport.f5.com Exploit / PoCpacketstormsecurity.com Exploit / PoCpacketstormsecurity.com Exploit / PoCpacketstormsecurity.com Exploit / PoCsecpod.com Exploit / PoCpacketstormsecurity.com Exploit / PoCpacketstormsecurity.com Exploit / PoCpacketstormsecurity.com Exploit / PoCsecpod.com Webcisa.gov

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