🚨 [CISA-2026:0327] CISA Adds One Known Exploited Vulnerability to Catalog (https://secdb.nttzen.cloud/security-advisory/detail/CISA-2026:0327)
CISA has added one new vulnerability to its Known Exploited Vulnerabilities Catalog, based on evidence of active exploitation. These types of vulnerabilities are a frequent attack vector for malicious cyber actors and pose significant risk to the federal enterprise.
⚠️ CVE-2025-53521 (https://secdb.nttzen.cloud/cve/detail/CVE-2025-53521)
- Name: F5 BIG-IP Unspecified Vulnerability
- 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.
- Known To Be Used in Ransomware Campaigns? Unknown
- Vendor: F5
- Product: BIG-IP
- Notes: 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
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