CVE-2023-40534 - CVE House
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Status published High CVE-2023-40534

BIG-IP HTTP/2 vulnerability

Vulnerability Description

When a client-side HTTP/2 profile and the HTTP MRF Router option are enabled for a virtual server, and an iRule using the HTTP_REQUEST event or Local Traffic Policy are associated with the virtual server, undisclosed requests can cause TMM to terminate.  Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.

Impact Analysis

Refer to official advisory for detailed impact metrics.

Remediation

Ensure systems are updated to the latest vendor-supplied patch levels.

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Credits & Attribution

The following person or organization is credited with identifying this vulnerability, as recorded in the NVD database:

  • F5

Affected Vendor

Affected Software

BIG-IP, BIG-IP Next SPK
Vulnerable Versions:
17.1.0, 16.1.0, 15.1.0, 14.1.0, 13.1.0, 1.6.0

Timeline

Official Publish: October 10th, 2023
Last Modified: September 19th, 2024
Added to House: July 22nd, 2026

CVSS Vectors

V3: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Weaknesses (CWE)