CVE-2024-23982Network attack vector

Unauthenticated TMM crash via classification stack overflow

Published Feb 14, 2024 · Updated Aug 21, 2024

A stack-based buffer overflow in F5 BIG-IP PEM allows remote attackers to crash TMM through crafted UDP traffic without authentication. The classification engine processes request data with an affected signature file and overruns a stack buffer; F5 has not disclosed the request format. Exposure requires a PEM classification profile on a UDP virtual server and a signature released from September 8, 2022 through February 16, 2023; the consequence is a traffic-processing service interruption.

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

A stack-based buffer overflow in F5 BIG-IP PEM allows remote attackers to crash TMM through crafted UDP traffic without authentication. The classification engine processes request data with an affected signature file and overruns a stack buffer; F5 has not disclosed the request format. Exposure requires a PEM classification profile on a UDP virtual server and a signature released from September 8, 2022 through February 16, 2023; the consequence is a traffic-processing service interruption.

The record

CVE
CVE-2024-23982
Published
Feb 14, 2024
Updated
Aug 21, 2024
Vendor
F5 Networks
Product
BIG-IP
Classifications
CWE-121, T1499.004
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Feb 14, 2024CVE publishedPublication date reported by the CVE source.
  2. Aug 21, 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=15.1.0 <* changes=[{"at":"classification-update-15.1.0-20220919_0728.im","status":"affected"},{"at":"classification-update-15.1.0-20220929_1149.im","status":"affected"},{"at":"classification-update-15.1.0-20221014_1320.im","status":"affected"},{"at":"classification-update-15.1.0-20221027_0652.im","status":"affected"},{"at":"classification-update-15.1.0-20221110_0614.im","status":"affected"},{"at":"classification-update-15.1.0-20221125_0422.im","status":"affected"},{"at":"classification-update-15.1.0-20221212_0929.im","status":"affected"},{"at":"classification-update-15.1.0-20221222_0627.im","status":"affected"},{"at":"classification-update-15.1.0-20230105_0508.im","status":"affected"},{"at":"classification-update-15.1.0-20230120_1249.im","status":"affected"},{"at":"classification-update-15.1.0-20230203_1610.im","status":"affected"},{"at":"classification-update-15.1.0-20230216_0811.im","status":"affected"},{"at":"classification_updates_15.1.0-20230302_1513.im","status":"unaffected"}]
  2. Affected versionversion=16.1.0 <* changes=[{"at":"classification-update-16.1.0-20220919_0728.im","status":"affected"},{"at":"classification-update-16.1.0-20220929_1149.im","status":"affected"},{"at":"classification-update-16.1.0-20221014_1320.im","status":"affected"},{"at":"classification-update-16.1.0-20221027_0652.im","status":"affected"},{"at":"classification-update-16.1.0-20221110_0614.im","status":"affected"},{"at":"classification-update-16.1.0-20221125_0422.im","status":"affected"},{"at":"classification-update-16.1.0-20221212_0929.im","status":"affected"},{"at":"classification-update-16.1.0-20221222_0627.im","status":"affected"},{"at":"classification-update-16.1.0-20230105_0508.im","status":"affected"},{"at":"classification-update-16.1.0-20230120_1249.im","status":"affected"},{"at":"classification-update-16.1.0-20230203_1610.im","status":"affected"},{"at":"classification-update-16.1.0-20230216_0811.im","status":"affected"},{"at":"classification_updates_16.1.0-20230302_1513.im","status":"unaffected"}]
  3. Affected versionversion=17.0.0 <* changes=[{"at":"classification-update-17.0.0-20220919_0728.im","status":"affected"},{"at":"classification-update-17.0.0-20220929_1149.im","status":"affected"},{"at":"classification-update-17.0.0-20221014_1320.im","status":"affected"},{"at":"classification-update-17.0.0-20221027_0652.im","status":"affected"},{"at":"classification-update-17.0.0-20221110_0614.im","status":"affected"},{"at":"classification-update-17.0.0-20221125_0422.im","status":"affected"},{"at":"classification-update-17.0.0-20221212_0929.im","status":"affected"},{"at":"classification-update-17.0.0-20221222_0627.im","status":"affected"},{"at":"classification-update-17.0.0-20230105_0508.im","status":"affected"},{"at":"classification-update-17.0.0-20230120_1249.im","status":"affected"},{"at":"classification-update-17.0.0-20230203_1610.im","status":"affected"},{"at":"classification-update-17.0.0-20230216_0811.im","status":"affected"},{"at":"classification_updates_17.0.0-20230302_1513.im","status":"unaffected"}]

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

F5 Networks · BIG-IPversion=15.1.0 <* changes=[{"at":"classification-update-15.1.0-20220919_0728.im","status":"affected"},{"at":"classification-update-15.1.0-20220929_1149.im","status":"affected"},{"at":"classification-update-15.1.0-20221014_1320.im","status":"affected"},{"at":"classification-update-15.1.0-20221027_0652.im","status":"affected"},{"at":"classification-update-15.1.0-20221110_0614.im","status":"affected"},{"at":"classification-update-15.1.0-20221125_0422.im","status":"affected"},{"at":"classification-update-15.1.0-20221212_0929.im","status":"affected"},{"at":"classification-update-15.1.0-20221222_0627.im","status":"affected"},{"at":"classification-update-15.1.0-20230105_0508.im","status":"affected"},{"at":"classification-update-15.1.0-20230120_1249.im","status":"affected"},{"at":"classification-update-15.1.0-20230203_1610.im","status":"affected"},{"at":"classification-update-15.1.0-20230216_0811.im","status":"affected"},{"at":"classification_updates_15.1.0-20230302_1513.im","status":"unaffected"}]; version=16.1.0 <* changes=[{"at":"classification-update-16.1.0-20220919_0728.im","status":"affected"},{"at":"classification-update-16.1.0-20220929_1149.im","status":"affected"},{"at":"classification-update-16.1.0-20221014_1320.im","status":"affected"},{"at":"classification-update-16.1.0-20221027_0652.im","status":"affected"},{"at":"classification-update-16.1.0-20221110_0614.im","status":"affected"},{"at":"classification-update-16.1.0-20221125_0422.im","status":"affected"},{"at":"classification-update-16.1.0-20221212_0929.im","status":"affected"},{"at":"classification-update-16.1.0-20221222_0627.im","status":"affected"},{"at":"classification-update-16.1.0-20230105_0508.im","status":"affected"},{"at":"classification-update-16.1.0-20230120_1249.im","status":"affected"},{"at":"classification-update-16.1.0-20230203_1610.im","status":"affected"},{"at":"classification-update-16.1.0-20230216_0811.im","status":"affected"},{"at":"classification_updates_16.1.0-20230302_1513.im","status":"unaffected"}]; version=17.0.0 <* changes=[{"at":"classification-update-17.0.0-20220919_0728.im","status":"affected"},{"at":"classification-update-17.0.0-20220929_1149.im","status":"affected"},{"at":"classification-update-17.0.0-20221014_1320.im","status":"affected"},{"at":"classification-update-17.0.0-20221027_0652.im","status":"affected"},{"at":"classification-update-17.0.0-20221110_0614.im","status":"affected"},{"at":"classification-update-17.0.0-20221125_0422.im","status":"affected"},{"at":"classification-update-17.0.0-20221212_0929.im","status":"affected"},{"at":"classification-update-17.0.0-20221222_0627.im","status":"affected"},{"at":"classification-update-17.0.0-20230105_0508.im","status":"affected"},{"at":"classification-update-17.0.0-20230120_1249.im","status":"affected"},{"at":"classification-update-17.0.0-20230203_1610.im","status":"affected"},{"at":"classification-update-17.0.0-20230216_0811.im","status":"affected"},{"at":"classification_updates_17.0.0-20230302_1513.im","status":"unaffected"}]
F5 Networks · BIG-IP Policy Enforcement Managerversion=15.1.0 <=15.1.10; version=16.1.0 <=16.1.4; version=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

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-121Stack-based Buffer Overflow
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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