CRITICAL🚩 CISA KEV⚡ EXPLOIT🇵🇱 Wersja polska

CVE-2025-53521

CVSS 9.3v4.0pub. 2025-10-15upd. 2026-04-02

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.

CVSS Vector
CVSS: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

  • F5 Big Ip Access Policy Manager

    APP
    F5
    15.1.0 – 15.1.10.8 (bez)16.1.0 – 16.1.6.1 (bez)17.1.0 – 17.1.3 (bez)17.5.0 – 17.5.1.3 (bez)

CISA KEV — detailsi

Vendori
F5 ↗
Producti
BIG-IP
Added to KEVi
March 27, 2026
Remediation deadline (US Federal)i
March 30, 2026(overdue)
Required action (CISA)i

Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.

CISA descriptioni

F5 BIG-IP APM contains a stack-based buffer overflow vulnerability that could allow a threat actor to achieve remote code execution.

🔴
IMMEDIATE ACTION
Actively exploited in the wild (CISA KEV). Patch immediately.
⏰CISA DEADLINE: 30 marca 2026
Tags
RCE
CWE
References

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