CVE-2025-53521
published 2025-10-15CVE-2025-53521: 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…
critical9.3CVSS 4.0
AVNACLATNPRNUINVCHVIHVAHSCNSINSANEXCRXIRXARXMAVXMACXMATXMPRXMUIXMVCXMVIXMVAXMSCXMSIXMSAXSXAUXRXVXREXUX
KEV
CISA Known Exploited Vulnerabilitydue 2026-03-30
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.
Affected
9 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| f5 | big-ip | >= 15.1.0 < 15.1.10.8 | 15.1.10.8 |
| f5 | big-ip | >= 16.1.0 < 16.1.6.1 | 16.1.6.1 |
| f5 | big-ip | >= 17.1.0 < 17.1.3 | 17.1.3 |
| f5 | big-ip | >= 17.5.0 < 17.5.1.3 | 17.5.1.3 |
| f5 | big-ip_access_policy_manager | >= 15.1.0 < 15.1.10.8 | 15.1.10.8 |
| f5 | big-ip_access_policy_manager | >= 16.1.0 < 16.1.6.1 | 16.1.6.1 |
| f5 | big-ip_access_policy_manager | >= 17.1.0 < 17.1.3 | 17.1.3 |
| f5 | big-ip_access_policy_manager | >= 17.5.0 < 17.5.1.3 | 17.5.1.3 |
| f5 | big-ip_apm | — | — |
CVSS provenance
nvdv4.09.3CRITICALCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
vulncheck9.3CRITICAL
cisa9.3CRITICAL