CVE-2025-53521
F5 BIG-IP Stack-Based Buffer Overflow Vulnerability
CVSS
9.8
Crítica
EPSS
2.3%
p83
KEV
SIM
27 de mar. de 2026
Exploit Today
75
0-100
Publicado: 15 de out. de 2025 · Última mod.: 8 de out. de 2026 · CWE-121
Produto
F5 / BIG-IP
Vulnerabilidade
F5 BIG-IP Stack-Based Buffer Overflow Vulnerability
Adicionado ao KEV
27 de mar. de 2026
Corrigir até
30 de mar. de 2026
Uso conhecido em ransomware
Não
Descrição resumida
F5 BIG-IP APM contains a stack-based buffer overflow vulnerability that could allow a threat actor to achieve remote code execution.
Ação necessária
Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
Notas
Please adhere to F5’s guidelines to assess exposure and mitigate risks. Check for signs of potential compromise on all internet accessible F5 products affected by this vulnerability. For more information please see: https://my.f5.com/manage/s/article/K000156741 ; https://my.f5.com/manage/s/article/K000160486 ; https://my.f5.com/manage/s/article/K11438344 ; https://nvd.nist.gov/vuln/detail/CVE-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 which have reached End of Technical Support (EoTS) are not evaluated.