CVE-2024-23979Network attack vector

Service interruption via excessive CPU consumption

Published Feb 14, 2024 · Updated Aug 1, 2024

Resource exhaustion in affected F5 BIG-IP releases allows remote attackers to interrupt service via undisclosed requests. F5 has not disclosed the request form or processing locus; the affected path consumes excessive CPU without adequate resource limits. Exposure requires a virtual server configured with an SSL Client Certificate LDAP or CRLDP authentication profile, and the bounded impact is degraded availability.

CVSS severity7.5
High
EPSS probability0.34%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Resource exhaustion in affected F5 BIG-IP releases allows remote attackers to interrupt service via undisclosed requests. F5 has not disclosed the request form or processing locus; the affected path consumes excessive CPU without adequate resource limits. Exposure requires a virtual server configured with an SSL Client Certificate LDAP or CRLDP authentication profile, and the bounded impact is degraded availability.

The record

CVE
CVE-2024-23979
Published
Feb 14, 2024
Updated
Aug 1, 2024
Vendor
F5 Networks
Product
BIG-IP
Classifications
CWE-770, T1499.003
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

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

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

  1. Affected versionversion=15.1.0 <15.1.9
  2. Affected versionversion=16.1.0 <16.1.4
  3. Affected versionversion=17.1.0 <17.1.1

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

F5 Networks · BIG-IPversion=15.1.0 <15.1.9; version=16.1.0 <16.1.4; version=17.1.0 <17.1.1

Published CVSS scores

7.5NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
7.5F5 NetworksCVSS: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-770Allocation of Resources Without Limits or Throttling
T1499.003Application Exhaustion Flood

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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