CVE-2026-63020CWE-451

CVE-2026-63020

Low · published September 2, 2026

CVSS v3.1
3.1
EPSS
0%
Percentile
8.3
In the wild
Unconfirmed
What it is

A vulnerability exists in an undisclosed BIG-IP Configuration utility page that may allow an attacker to spoof error messages

Impact:

An attacker may trick authenticated BIG-IP users

into accessing malicious links and reflect a spoofed error message in

the victim's BIG-IP Configuration utility web browser session. This is a

control plane issue; there is no data plane exposure.

Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.

The record
Technical detail
CVSS v3.1
3.1 · LOW
Vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:L/A:N
CVSS v4.0
2.3 · CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:P/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N
EPSS
0.00186 · 8.3th percentile
Weakness
CWE-451 · User Interface (UI) Misrepresentation of Critical Information
Published
2026-09-02T20:17Z
References (1)
https://my.f5.com/manage/s/article/K000161728 · [email protected]
EPSS history
Timeline
  • 04 SEP 03:43Z
    EPSS moved — → 0%
    epss
  • 02 SEP 15:40Z
    BIG-IP Configuration utility vulnerability
    cvelistv5