CVE-2024-41723Network attack vector

Authenticated username disclosure via undisclosed REST endpoint

Published Aug 14, 2024 · Updated Aug 16, 2024

Information disclosure in F5 BIG-IP allows remote authenticated users to obtain user account names through iControl REST requests. F5 identifies an undisclosed iControl REST endpoint that returns a username list but has not published the endpoint or faulty authorization logic. A low-privileged account and network access to iControl REST are required; the reported consequence is limited to account-name disclosure.

CVSS severity5.3
Medium
EPSS probability0.30%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Information disclosure in F5 BIG-IP allows remote authenticated users to obtain user account names through iControl REST requests. F5 identifies an undisclosed iControl REST endpoint that returns a username list but has not published the endpoint or faulty authorization logic. A low-privileged account and network access to iControl REST are required; the reported consequence is limited to account-name disclosure.

The record

CVE
CVE-2024-41723
Published
Aug 14, 2024
Updated
Aug 16, 2024
Vendor
F5 Networks
Product
BIG-IP
Classifications
CWE-200, T1087
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Aug 14, 2024CVE publishedPublication date reported by the CVE source.
  2. Aug 16, 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 <*
  2. Affected versionversion=16.1.0 <16.1.5
  3. Affected versionversion=17.1.0 <17.1.1

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

F5 Networks · BIG-IPversion=15.1.0 <*; version=16.1.0 <16.1.5; version=17.1.0 <17.1.1

Published CVSS scores

5.3F5 NetworksCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N
4.3F5 NetworksCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

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
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-200Exposure of Sensitive Information to an Unauthorized Actor
T1087Account Discovery

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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