CVE-2026-39459

high F5
CVSS v3 Base Score
7.2
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
EPSS Score
0.3%
Exploitation probability in 30 days
Top 83% most likely to be exploited
Attack Characteristics
Attack Vector
Network
Attack Complexity
Low
Privileges Required
High
User Interaction
None
Confidentiality
High
Integrity
High
Availability
High
Published: May 13, 2026 (57 days ago)
Last Modified: June 29, 2026
Vendor: F5
Source: NVD

Description

A vulnerability exists in iControl REST and the TMOS Shell (tmsh) where a highly privileged, authenticated attacker with at least the Manager role can create configuration objects that allow running arbitrary commands.  Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.

CWE

CWE-272

Affected Products

f5 big-ip access policy managerf5 big-ip advanced firewall managerf5 big-ip advanced web application firewallf5 big-ip analyticsf5 big-ip application acceleration managerf5 big-ip application security managerf5 big-ip application visibility and reportingf5 big-ip automation toolchainf5 big-ip carrier-grade natf5 big-ip container ingress services

References

🔗 my.f5.com