How to check if you are exposed to CVE-2022-1388
- Find every F5 BIG-IP system you or your clients run, including ones exposed to the internet. Those come first: CISA only lists flaws attackers are already using.
- Compare each version with the fixed versions in the vendor advisory. Where no fix exists yet, apply the vendor’s mitigation or take the system off the internet.
- Run a credentialed vulnerability scan to catch the systems you missed, then check that the next scan no longer reports CVE-2022-1388.
US federal agencies had to fix this by 2022-05-31. Everyone else should treat that deadline as a guide: if it has passed, this is overdue.
Timeline
- · Added to CISA's Known Exploited Vulnerabilities catalog
- · Fix-by date for US federal agencies, passed 1,615 days ago
Weakness type
More exploited F5 vulnerabilities
CISA lists 8 exploited F5 vulnerabilities. The closest matches:
- CVE-2025-53521F5 BIG-IP Stack-Based Buffer Overflow VulnerabilityAdded 2026-03-27
- CVE-2020-5902F5 BIG-IP Traffic Management User Interface (TMUI) Remote Code Execution VulnerabilityAdded 2021-11-03
- CVE-2026-94127F5 BIG-IP APM Heap-based Buffer Overflow VulnerabilityAdded 2026-09-22
- CVE-2023-46748F5 BIG-IP Configuration Utility SQL Injection VulnerabilityAdded 2023-10-31
- CVE-2023-46747F5 BIG-IP Configuration Utility Authentication Bypass VulnerabilityAdded 2023-10-31
- CVE-2021-22991F5 BIG-IP Traffic Management Microkernel Buffer OverflowAdded 2022-01-18
- CVE-2021-22986F5 BIG-IP and BIG-IQ Centralized Management iControl REST Remote Code Execution VulnerabilityAdded 2021-11-03
Keep going
Sources: CISA Known Exploited Vulnerabilities catalog (version 2026.10.30); EPSS data from FIRST.org; CVSS and descriptions from the NIST National Vulnerability Database. Checked 2026-11-01. This product uses the NVD API but is not endorsed or certified by the NVD.