Exploited Vulnerabilities DailyCVE-2025-53521: F5 BIG-IP
EPSS2.2%No. 1568 of 1739 in KEV
CVE year2025~1 yrs before listing
Same vendor in KEV8
Same product3
| Field | Value |
|---|---|
| Vendor | F5 |
| Product | BIG-IP |
| Name | F5 BIG-IP Stack-Based Buffer Overflow Vulnerability |
| Added to KEV | 2026-03-27 |
| US federal due date | 2026-03-30 |
| Ransomware use | Unknown |
| CWE | CWE-121 |
CISA description
F5 BIG-IP APM contains a stack-based buffer overflow vulnerability that could allow a threat actor to achieve remote code execution.
Other entries for this product
| CVE | Vendor / product | Added | EPSS | Ransomware |
|---|---|---|---|---|
| CVE-2022-1388 | F5 BIG-IP | 2022-05-10 | 99.9% | Known |
| CVE-2020-5902 | F5 BIG-IP | 2021-11-03 | 99.9% | Known |
Data from CISA's Known Exploited Vulnerabilities (KEV) catalog. EPSS is FIRST's estimated probability of exploitation activity in the next 30 days, refreshed weekly. Always follow the vendor's official guidance.
About this page
A F5 BIG-IP vulnerability added to CISA's Known Exploited Vulnerabilities catalog on 2026-03-27.