CVE-2025-53521

EUVD-2025-34630
When a BIG-IP APM access policy is configured on a virtual server, specific malicious traffic can lead to Remote Code Execution (RCE).  

Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
f5CNA
9.8 CRITICAL
NETWORK
LOW
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Base Score
CVSS 3.x
EPSS Score
Percentile: 92%
Affected Products (NVD)
VendorProductVersion
f5big-ip_access_policy_manager
15.1.0 ≤
𝑥
< 15.1.10.8
f5big-ip_access_policy_manager
16.1.0 ≤
𝑥
< 16.1.6.1
f5big-ip_access_policy_manager
17.1.0 ≤
𝑥
< 17.1.3
f5big-ip_access_policy_manager
17.5.0 ≤
𝑥
< 17.5.1.3
𝑥
= Vulnerable software versions
Early Detection
Affected products identified ahead of NVD analysis through intelligence sources.
VendorProductVersionSource
f5big-ip
17.5.0 ≤
𝑥
< 17.5.1.3
CNA
f5big-ip
17.1.0 ≤
𝑥
< 17.1.3
CNA
f5big-ip
16.1.0 ≤
𝑥
< 16.1.6.1
CNA
f5big-ip
15.1.0 ≤
𝑥
< 15.1.10.8
CNA
Common Weakness Enumeration
Vulnerability Media Exposure
References
https://my.f5.com/manage/s/article/K000156741
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-53521