CVE-2022-1388
CriticalExploitedPublic exploitOn 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.
Published Sep 14, 2022 · Updated Oct 21, 2025 · Also known as TR-22-0326, TR-22-0376, TR-22-0379, TR-22-0382, TR-22-0384, TR-22-0398, TR-22-0401
Key Facts
Patch immediately- CVE-2022-1388 is a critical-severity vulnerability (CVSS 9.8 v3.1) affecting Big-Ip Access Policy Manager (F5), Big-Ip Advanced Firewall Manager (F5), Big-Ip Analytics (F5) and 9 more products.
- It is exploited in the wild, listed in CISA KEV, Industry KEV feed, CIRCL KEV, ENISA EUVD since Sep 23, 2021 and is known to be used in ransomware campaigns. Public exploit code is available.
- EPSS estimates a 100% probability of exploitation in the next 30 days.
- Fixed versions are available, including BIG-IP 13.1.5, BIG-IP 14.1.4.6, BIG-IP 15.1.5.1.
- Brandefense priority: patch immediately, because it is listed as exploited in the wild.
CVSS v3.1
9.8
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS (30-day exploit likelihood)
100%
Higher than 99.9% of all scored CVEs
Exploited in the wild
Yes
4 catalog listings, used by ransomware
Public exploit code
Available
Proof-of-concept or weaponized module
Get the full CVE-2022-1388 brief as a PDF
Every affected product and fixed release, exploitation status and a first 24 hours response checklist, emailed within minutes.
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
Known-Exploited Catalog Listings
| Catalog | Added | Remediation due | Ransomware use |
|---|---|---|---|
| CISA KEV | May 10, 2022 | May 31, 2022 | Known |
| Industry KEV feed | Sep 23, 2021 | May 31, 2022 | Known |
| CIRCL KEV | May 10, 2022 | May 31, 2022 | Known |
| ENISA EUVD | May 10, 2022 | n/a | Not reported |
Required action: Apply updates per vendor instructions.
Affected Products
12 affected entries in total| Product | Affected versions | Fixed in |
|---|---|---|
| Big-Ip Access Policy ManagerF5 | See advisory | 11.6.5 |
| Big-Ip Advanced Firewall ManagerF5 | See advisory | 11.6.5 |
| Big-Ip AnalyticsF5 | See advisory | 11.6.5 |
| Big-Ip Application Acceleration ManagerF5 | See advisory | 11.6.5 |
| Big-Ip Application Security ManagerF5 | See advisory | 11.6.5 |
Patched Releases
BIG-IP
13.1.5, 14.1.4.6, 15.1.5.1, 16.1.2.2
Big-Ip Access Policy Manager
<=11.6.5
Big-Ip Advanced Firewall Manager
<=11.6.5
Big-Ip Analytics
<=11.6.5
Big-Ip Application Acceleration Manager
<=11.6.5
Big-Ip Application Security Manager
<=11.6.5
Big-Ip Domain Name System
<=11.6.5
Big-Ip Fraud Protection Service
<=11.6.5
Big-Ip Global Traffic Manager
<=11.6.5
Big-Ip Link Controller
<=11.6.5
Big-Ip Local Traffic Manager
<=11.6.5
Big-Ip Policy Enforcement Manager
<=11.6.5
Timeline
Added to Industry KEV feed
Sep 23, 2021
Added to CISA KEV
May 10, 2022
Added to CIRCL KEV
May 10, 2022
Added to ENISA EUVD
May 10, 2022
Publicly disclosed
Sep 14, 2022
Last updated
Oct 21, 2025
Weakness Type
- CWE-306 Missing Authentication for Critical Function
References
- advisoryhttps://confluence.atlassian.com/doc/confluence-security-advisory-2022-06-02-1130377146.html
- advisoryhttps://cybersafenv.org/2022/06/01/mozilla-releases-security-updates-for-firefox-firefox-esr-and-thunderbird-6/
- advisoryhttps://cybersafenv.org/2022/06/03/atlassian-releases-security-updates-for-confluence-server-and-data-center-cve-2022-26134/
- advisoryhttps://docs.microsoft.com/en-us/deployedge/microsoft-edge-relnotes-security
- advisoryhttps://docs.microsoft.com/en-us/windows/win32/secauthn/lsa-authentication
FAQ
Common Questions.
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.
Affected: Big-Ip Access Policy Manager (F5); Big-Ip Advanced Firewall Manager (F5); Big-Ip Analytics (F5), among others. The full list is in the CVE brief.
It is exploited in the wild, listed in CISA KEV, Industry KEV feed, CIRCL KEV, ENISA EUVD since Sep 23, 2021 and is known to be used in ransomware campaigns.
Yes. It was added on May 10, 2022 with a federal remediation due date of May 31, 2022.
Public exploit code is available.
Fixed versions are available, including BIG-IP 13.1.5, BIG-IP 14.1.4.6, BIG-IP 15.1.5.1.
Brandefense priority: patch immediately, because it is listed as exploited in the wild.
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