CVE-2025-54858: big-ip — Fix

Description

When a BIG-IP Advanced WAF or BIG-IP ASM Security Policy is configured with a JSON content profile that has a malformed JSON schema, and the security policy is applied to a virtual server, undisclosed requests can cause the bd process to terminate. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.

Is your site exposed to CVE-2025-54858?

Run a free security scan — no signup, results in seconds.

CVSS v3.1 Score

7.5

HIGH

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

Weakness Type (CWE)

CWE-674 CWE-674

Affected Products

Vendor	Product	Versions
f5	big-ip_advanced_web_application_firewall	15.1.0 — 15.1.10.8
f5	big-ip_advanced_web_application_firewall	16.1.0 — 16.1.6.1
f5	big-ip_advanced_web_application_firewall	17.1.0 — 17.1.3
f5	big-ip_advanced_web_application_firewall	17.5.0 — 17.5.1.3
f5	big-ip_application_security_manager	15.1.0 — 15.1.10.8
f5	big-ip_application_security_manager	16.1.0 — 16.1.6.1
f5	big-ip_application_security_manager	17.1.0 — 17.1.3
f5	big-ip_application_security_manager	17.5.0 — 17.5.1.3

References

Advisories & Patches

https://my.f5.com/manage/s/article/K000156621

Frequently Asked Questions

What is CVE-2025-54858? +

When a BIG-IP Advanced WAF or BIG-IP ASM Security Policy is configured with a JSON content profile that has a malformed JSON schema, and the security policy is applied to a virtual server, undisclosed requests can cause the bd process to terminate. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated. It has a CVSS v3.1 base score of 7.5 (HIGH).

How severe is CVE-2025-54858? +

CVE-2025-54858 has a CVSS v3.1 score of 7.5 out of 10, rated HIGH. This is a high-severity vulnerability that should be prioritized for patching.

What products are affected by CVE-2025-54858? +

CVE-2025-54858 affects products from f5, specifically: big-ip_advanced_web_application_firewall, big-ip_application_security_manager. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2025-54858? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

Related Vulnerabilities

CVE-2026-8936

Fixed a VM panic caused by unbounded recursion in the grpcfuse kernel module when a container created deeply nested directories …

CVE-2025-10728

When the module renders a Svg file that contains a <pattern> element, it might end up rendering it recursively leading …

CVE-2025-11896

In Xpdf 4.05 (and earlier), a PDF object loop in a CMap, via the "UseCMap" entry, leads to infinite recursion …

CVE-2026-46689

Kanidm is an identity management platform. Prior to version 1.9.3, a single unauthenticated GET to any /scim/v1/... endpoint with a …

CVE-2026-44844

eml_parser serves as a python module for parsing eml files and returning various information found in the e-mail as well …

CVE-2026-41673

xmldom is a pure JavaScript W3C standard-based (XML DOM Level 2 Core) `DOMParser` and `XMLSerializer` module. In @xmldom/xmldom prior to …

CVE-2025-54858