CVE CVE-2025-53521

CVE-2025-53521 — F5 BIG-IP Stack-Based Buffer Overflow Vulnerability

CISA KEV · Mar 27, 2026 · CRITICAL cve actively-exploited kev
F5 BIG-IP APM contains a stack-based buffer overflow vulnerability that could allow a threat actor to achieve remote code execution. Required action: Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
CVSS Score
N/A
CRITICAL
Vendor
F5
Product
BIG-IP

F5 BIG-IP APM contains a stack-based buffer overflow vulnerability that could allow a threat actor to achieve remote code execution. Required action: Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.

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cve actively-exploited kev
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CISA KEV
https://www.cisa.gov/known-exploited-vulnerabilities-catalog
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