CVE-2026-42919
F5 BIG-IP Appliance Mode Vulnerability
CVSS Score
6.7
EPSS Score
0.0%
EPSS Percentile
0th
A vulnerability exists in BIG-IP systems that may allow an authenticated attacker with administrative access to escalate their privileges. A successful exploit may allow the attacker to cross a security boundary. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.
| CWE | CWE-121 |
| Vendor | f5 |
| Product | big-ip |
| Published | May 13, 2026 |
| Last Updated | May 13, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:H/A:H Attack Vector
Network
Attack Complexity
Low
Privileges Required
High
User Interaction
None
Scope
Unchanged
Confidentiality
Low
Integrity
High
Availability
High
Affected Versions
F5 / BIG-IP
21.0.0 < 21.0.0.1 17.5.0 < 17.5.1.4 17.1.0 < 17.1.3.1 16.1.0 < *
Credits
F5