CVE-2024-23308Network attack vector

Service interruption via BD null pointer dereference

Published Feb 14, 2024 · Updated Aug 1, 2024

Denial of service in F5 BIG-IP 17.1.0 allows remote attackers to terminate the BD process by sending undisclosed requests. F5 ties the condition to request handling for an Allowed URL whose Header-Based Content Profile applies value and content signatures and threat-campaign detection, but does not disclose the exact BD code path that dereferences the null pointer. The policy must be attached to a virtual server with that Request Body Handling option, and successful requests interrupt BD processing without reported data disclosure or modification.

CVSS severity7.5
High
EPSS probability0.52%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Denial of service in F5 BIG-IP 17.1.0 allows remote attackers to terminate the BD process by sending undisclosed requests. F5 ties the condition to request handling for an Allowed URL whose Header-Based Content Profile applies value and content signatures and threat-campaign detection, but does not disclose the exact BD code path that dereferences the null pointer. The policy must be attached to a virtual server with that Request Body Handling option, and successful requests interrupt BD processing without reported data disclosure or modification.

The record

CVE
CVE-2024-23308
Published
Feb 14, 2024
Updated
Aug 1, 2024
Vendor
F5 Networks
Product
BIG-IP
Classifications
CWE-476, T1499.004
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Feb 14, 2024CVE publishedPublication date reported by the CVE source.
  2. Aug 1, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=17.1.0 <17.1.1

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

F5 Networks · BIG-IPversion=17.1.0 <17.1.1

Published CVSS scores

7.5F5CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
7.5NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-476NULL Pointer Dereference
T1499.004Endpoint Denial of Service: Application or System Exploitation

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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