Known vulnerabilities in BIG-IP 21.1.0

Software: BIG-IP
Version: 21.1.0
Software CPE: cpe:2.3:h:f5_networks:big-ip:*:*:*:*:*:*:*:*
Total vulnerabilities: 3
Public exploits: 0
Known exploited (KEV): 0
Highest CVSSv4 Score: 8.8

Vulnerabilities by Severity

Severity distribution of vulnerabilities affecting BIG-IP version 21.1.0 BIG-IP 21.1.0 is affected by 3 vulnerabilities: 2 medium, 1 low Critical High Medium Low

Vulnerabilities (3)

Vulnerability CWE-ID CSH Severity Public Exploit KEV First fixed release Published Bulletins
#VU147233 - User Interface (UI) Misrepresentation of Critical Information (Clickjacking, spoofing)
CVE-2026-63020
CWE-451 Low
No
No
17.1.3.4, 17.5.1.8, 21.1.0.1 07.09.2026 SB2026090744
#VU147232 - Server-Side Request Forgery (SSRF)
CVE-2026-66842
CWE-918 Medium
No
No
17.1.3.4, 17.5.1.8, 21.0.0.3, 21.1.0.1 07.09.2026 SB2026090743
#VU139208 - Improper Check for Unusual or Exceptional Conditions
CVE-2026-12617
CWE-754 Medium
No
No
- 23.07.2026 SB2026072347
SB2026072441
SB2026073103
and 10 more