CVE-2026-39455
When the BIG-IP Configuration utility is configured to use Lightweight Directory Access Protocol (LDAP) authentication, undisclosed traffic can cause the httpd process to exhaust the available file descriptors. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.
Scoring
- Severity
- HIGH
- CVSS base score
- 8.7
- CVSS vector
- CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
- EPSS probability
- 0.30%
- CWE
- CWE-772
- Published
- 2026-05-13
- Last modified
- 2026-05-13
Affected products
- F5 BIG-IP
- F5 BIG-IP
- F5 BIG-IP
- F5 BIG-IP
- F5 BIG-IP
Weakness type
Related vulnerabilities
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- CVE-2026-59654 — Apache CloudStack: DoS caused by database connections leak
- CVE-2026-73508 — Netty: Memory Leak in DNS Record Decoder via Malformed Domain Names
- CVE-2026-73215 — The coturn server can end in a state where it does not accept more requests with "even-port" enabled.