BIG-IP Configuration utility vulnerability_CVE-2026-39455

7.5 / 10

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Description

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.

Basic Information

ID CVE-2026-39455

Source f5

Published May 13, 2026 at 14:12

Affected Product

Vendor F5

Product BIG-IP

Version 21.1.0

Affected Versions F5 BIG-IP 21.0.0
F5 BIG-IP 17.5.0
F5 BIG-IP 17.1.0
F5 BIG-IP 16.1.0

CWE Classification

CWE-772

References

my.f5.com /manage/s/article/K000160874

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    "published": "2026-05-13T14:12:39.762Z",
    "modified": "2026-05-13T14:12:39.762Z",
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