CVE-2023-40534 | BDVDB-2026-213732 Detail

F5BIG-IP

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#

Per CVSS v3.1: confidentiality impact none, integrity impact none, availability impact high. Attack vector: network.

Weaknesses#

CWE-401 Missing Release of Memory after Effective Lifetime

References#

https://my.f5.com/manage/s/article/K000133467

Exploit#

No public exploit known

History#

Version 12023-10-10Record published in the CVE List.
Version 22024-09-19Most recent update recorded in the CVE List.

Published

Published: 2023-10-10
Last modified: 2024-09-19

Vendor information

Vendor: F5
Product: BIG-IP

All F5 vulnerabilities

Score

7.5 High

EPSS

less than 1%, Very Low

Estimated chance of exploitation in the next 30 days. EPSS percentile: 51.6.

KEV

Not listed in the CISA Known Exploited Vulnerabilities catalog.

Impact

Not classified

Action

No specific action is recorded in the source data. Check the references for vendor guidance.

Affected Systems

Vulnerable
>= 17.1.0 and < 17.1.0.3.0.23.4-ENG
Fixed
17.1.0.3.0.23.4-ENG
Vulnerable
>= 16.1.0 and < 16.1.4.1.0.13.5-ENG
Fixed
16.1.4.1.0.13.5-ENG
Vulnerable
Not stated
Fixed
15.1.0
Vulnerable
Not stated
Fixed
14.1.0
Vulnerable
Not stated
Fixed
13.1.0

Scoring System

CVSS v4.0

Not available

CVSS v3.1

7.5 High

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

Metric breakdown
Attack Vector	Network
Attack Complexity	Low
Privileges Required	None
User Interaction	None
Scope	Unchanged
Confidentiality	None
Integrity	None
Availability	High

CVSS v3.0

Not available

CVSS v2

Not available

Source: CVE List v5 (record); CISA KEV (kev, action); FIRST EPSS (epss).