CVE-2023-46745Public exploitNetwork attack vector

Account compromise via unthrottled GET login

Published Nov 17, 2023 · Updated Aug 29, 2024

Improper login-attempt restriction in LibreNMS before 23.11.0 allows remote attackers to compromise accounts through password guessing. LegacyExternalAuth passes GET-supplied username and password values directly to Auth::attempt without applying the login throttle. The attack requires a reachable web interface and a guessable password; a successful guess exposes the account's data and privileges.

CVSS severity5.3
Medium
EPSS probability0.60%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper login-attempt restriction in LibreNMS before 23.11.0 allows remote attackers to compromise accounts through password guessing. LegacyExternalAuth passes GET-supplied username and password values directly to Auth::attempt without applying the login throttle. The attack requires a reachable web interface and a guessable password; a successful guess exposes the account's data and privileges.

The record

CVE
CVE-2023-46745
Published
Nov 17, 2023
Updated
Aug 29, 2024
Vendor
LibreNMS
Product
LibreNMS
Classifications
CWE-523, CWE-307, T1110.001
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Nov 17, 2023CVE publishedPublication date reported by the CVE source.
  2. Aug 29, 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=< 23.11.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

LibreNMS · LibreNMSversion=< 23.11.0

Published CVSS scores

7.5NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
5.3GitHubCVSS:3.1/AV:N/AC:L/PR:N/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.

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No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-523Unprotected Transport of Credentials
CWE-307Improper Restriction of Excessive Authentication Attempts
T1110.001Password Guessing

Public exploit references

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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