CVE-2026-42919
F5 BIG-IP Appliance Mode Vulnerability
6.7CVSSMEDIUM
Description
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.
CVSS Vector Breakdown
Exploitability
AV:NAttack VectorNetwork
AC:LAttack ComplexityLow
PR:HPrivileges RequiredHigh
UI:NUser InteractionNone
Scope
S:UScopeUnchanged
Impact
C:LConfidentialityLow
I:HIntegrityHigh
A:HAvailabilityHigh
Weaknesses
Affected Products
big-ip advanced web application firewallf5
On-premSecurity Product
Networking Infrastructure / firewall and 17 more affected products View all →
Attack Graph
Products CVE Techniques Tactics
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Exploitability
Workaround Available
MITRE ATT&CK
1 technique Privilege Escalation
References
Timeline
Published
May 13, 2026
Last Updated
Jun 18, 2026
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