Vulnerability intelligence
CVE-2026-39459
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.
CVSS Score
8.6
High
EPSS — Exploit Probability
0.3%
Riskier than 17% of all CVEs
Exploitation
Not in CISA KEV
No federal exploitation record
Remediation
Patch available
Vendor fix published
1 article across 1 outlet · first covered May 14, 2026 · latest May 14, 2026
Tracked incidents
Coverage timeline
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F5 fixes NGINX heap overflow and iControl REST command injectionwww.securityweek.com · May 14, 2026