CVE-2026-63020— BIG-IP Configuration utility vulnerability
Quick assessment
Affected
F5 BIG-IP
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.
某未公开的 BIG-IP 配置实用程序页面存在一个漏洞，可能允许攻击者伪造错误消息。 影响： 攻击者可以诱使已认证的 BIG-IP 用户访问恶意链接，从而在受害者的 BIG-IP 配置实用程序 Web 浏览器会话中反射出一条被伪造的错误消息。这是一个控制平面问题，数据平面不受影响。 注意： 已达到技术支持结束（EoTS）的软件版本未进行评估。
Possible ATT&CK Techniques 1 AI
T1567 · Exfiltration Over Web Service
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I. Basic Information for CVE-2026-63020
Vulnerability Information
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Vulnerability Title
BIG-IP Configuration utility vulnerability
Source: CVE Program / CVE List V5
Vulnerability Description
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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:L/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
关键信息的UI错误表达
Source: CVE Program / CVE List V5
Affected Products
II. Public POCs for CVE-2026-63020
| # | POC Description | Source Link | Shenlong Link |
|---|
AI-Generated POC
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Other References for CVE-2026-63020 (1)
-
https://my.f5.com/manage/s/article/K000161728 vendor-advisory
Same Patch Batch · F5 · 2026-09-02 · 7 CVEs total
| CVE-2026-66842 | 8.8 HIGH | BIG-IP and BIG-IQ Configuration utility vulnerability |
| CVE-2026-77180 | 8.3 HIGH | NGINX Ingress Controller vulnerability |
| CVE-2026-18329 | 8.2 HIGH | NGINX ngx_http_js_module vulnerability |
| CVE-2026-78689 | 8.1 HIGH | NGINX ngx_http_js_module vulnerablility |
| CVE-2026-66362 | 8.1 HIGH | NGF vulnerability |
| CVE-2026-78222 | 7.5 HIGH | NGINX ngx_http_js_module vulnerability |
IV. Related Vulnerabilities
V. Comments for CVE-2026-63020
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