CVE-2020-5902
CriticalExploitedPublic exploitIn BIG-IP versions 15.0.0-15.1.0.3, 14.1.0-14.1.2.5, 13.1.0-13.1.3.3, 12.1.0-12.1.5.1, and 11.6.1-11.6.5.1, the Traffic Management User Interface (TMUI), also referred to as the Configuration utility, has a Remote Code Execution (RCE) vulnerability in undisclosed pages.
Published Jul 1, 2020 · Updated Oct 27, 2025
Key Facts
Patch immediately- CVE-2020-5902 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 Advanced Web Application Firewall (F5) and 12 more products.
- It is exploited in the wild, listed in CISA KEV, Industry KEV feed, CIRCL KEV, ENISA EUVD since Jul 22, 2020 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 Access Policy Manager 11.6.5.2, Big-Ip Advanced Firewall Manager 11.6.5.2, Big-Ip Advanced Web Application Firewall 11.6.5.2.
- 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-2020-5902 brief as a PDF
Every affected product and fixed release, exploitation status and a first 24 hours response checklist, emailed within minutes.
Description
In BIG-IP versions 15.0.0-15.1.0.3, 14.1.0-14.1.2.5, 13.1.0-13.1.3.3, 12.1.0-12.1.5.1, and 11.6.1-11.6.5.1, the Traffic Management User Interface (TMUI), also referred to as the Configuration utility, has a Remote Code Execution (RCE) vulnerability in undisclosed pages.
Known-Exploited Catalog Listings
| Catalog | Added | Remediation due | Ransomware use |
|---|---|---|---|
| CISA KEV | Nov 3, 2021 | May 3, 2022 | Known |
| Industry KEV feed | Jul 22, 2020 | May 3, 2022 | Known |
| CIRCL KEV | Nov 3, 2021 | May 3, 2022 | Known |
| ENISA EUVD | Nov 3, 2021 | n/a | Not reported |
Required action: Apply updates per vendor instructions.
Affected Products
15 affected entries in total| Product | Affected versions | Fixed in |
|---|---|---|
| Big-Ip Access Policy ManagerF5 | See advisory | 11.6.5.2 |
| Big-Ip Advanced Firewall ManagerF5 | See advisory | 11.6.5.2 |
| Big-Ip Advanced Web Application FirewallF5 | See advisory | 11.6.5.2 |
| Big-Ip AnalyticsF5 | See advisory | 11.6.5.2 |
| Big-Ip Application Acceleration ManagerF5 | See advisory | 11.6.5.2 |
Patched Releases
Big-Ip Access Policy Manager
11.6.5.2
Big-Ip Advanced Firewall Manager
11.6.5.2
Big-Ip Advanced Web Application Firewall
11.6.5.2
Big-Ip Analytics
11.6.5.2
Big-Ip Application Acceleration Manager
11.6.5.2
Big-Ip Application Security Manager
11.6.5.2
Big-Ip Ddos Hybrid Defender
11.6.5.2
Big-Ip Domain Name System
11.6.5.2
Big-Ip Fraud Protection Service
11.6.5.2
Big-Ip Global Traffic Manager
11.6.5.2
Big-Ip Link Controller
11.6.5.2
Big-Ip Local Traffic Manager
11.6.5.2
Big-Ip Policy Enforcement Manager
11.6.5.2
SSL Orchestrator
11.6.5.2
Timeline
Publicly disclosed
Jul 1, 2020
Added to Industry KEV feed
Jul 22, 2020
Added to CISA KEV
Nov 3, 2021
Added to CIRCL KEV
Nov 3, 2021
Added to ENISA EUVD
Nov 3, 2021
Last updated
Oct 27, 2025
Weakness Type
- CWE-22 Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
References
- advisoryhttp://packetstormsecurity.com/files/158334/BIG-IP-TMUI-Remote-Code-Execution.html
- advisoryhttp://packetstormsecurity.com/files/158414/Checker-CVE-2020-5902.html
- advisoryhttps://support.f5.com/csp/article/K52145254
- advisoryVU#290915
- exploithttp://packetstormsecurity.com/files/158333/BIG-IP-TMUI-Remote-Code-Execution.html
FAQ
Common Questions.
In BIG-IP versions 15.0.0-15.1.0.3, 14.1.0-14.1.2.5, 13.1.0-13.1.3.3, 12.1.0-12.1.5.1, and 11.6.1-11.6.5.1, the Traffic Management User Interface (TMUI), also referred to as the Configuration utility, has a Remote Code Execution (RCE) vulnerability in undisclosed pages.
Affected: Big-Ip Access Policy Manager (F5); Big-Ip Advanced Firewall Manager (F5); Big-Ip Advanced Web Application Firewall (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 Jul 22, 2020 and is known to be used in ransomware campaigns.
Yes. It was added on Nov 3, 2021 with a federal remediation due date of May 3, 2022.
Public exploit code is available.
Fixed versions are available, including Big-Ip Access Policy Manager 11.6.5.2, Big-Ip Advanced Firewall Manager 11.6.5.2, Big-Ip Advanced Web Application Firewall 11.6.5.2.
Brandefense priority: patch immediately, because it is listed as exploited in the wild.
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