CVE-2025-53521 - F5 BIG-IP
AI Vulnerability ContextWhen 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.
Overview
A source-backed snapshot of this vulnerability.
CISA KEVyesWhether CISA lists this as exploited.
Techniques0AI attack methods connected to this vulnerability.
Case studies0Examples where this vulnerability is mentioned.
Vulnerability status
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CISA KEVCRITICAL
- CVE ID
- CVE-2025-53521
- Vendor/project
- F5
- Product
- BIG-IP
- Vulnerability name
- F5 BIG-IP Stack-Based Buffer Overflow Vulnerability
- Date added
- 2026-03-27
- Due date
- 2026-03-30
- Known ransomware campaign use
- Unknown
- CVSS v3
- 9.8
- CVSS v4
- 9.3
CWE-121
Exploit context
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No description available. The source record only contains identifiers and metadata.
Source evidence
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Original source
Original source links
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NVD CVE pagehttps://nvd.nist.gov/vuln/detail/CVE-2025-53521CVE API docshttps://nvd.nist.gov/developers/vulnerabilitiesData feedshttps://nvd.nist.gov/vuln/data-feedsCataloghttps://www.cisa.gov/known-exploited-vulnerabilities-catalogData repositoryhttps://github.com/cisagov/kev-dataf5sirt@f5.comhttps://my.f5.com/manage/s/article/K000156741134c704f-9b21-4f2e-91b3-4a467353bcc0https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-53521