CVE-2023-5591Network attack vector

Database disclosure via unparameterized MAC address search

Published Oct 16, 2023 · Updated Sep 16, 2024

SQL injection in LibreNMS before 23.10.0 allows remote authenticated users to read database data through a crafted MAC-address search. The MAC branch in includes/html/table/address-search.inc.php concatenates the address parameter into an ifPhysAddress LIKE clause instead of binding it. Any logged-in user who can submit the address-search request can alter the query and expose data accessible to the LibreNMS database account.

CVSS severity7.8
High
EPSS probability22.22%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

SQL injection in LibreNMS before 23.10.0 allows remote authenticated users to read database data through a crafted MAC-address search. The MAC branch in includes/html/table/address-search.inc.php concatenates the address parameter into an ifPhysAddress LIKE clause instead of binding it. Any logged-in user who can submit the address-search request can alter the query and expose data accessible to the LibreNMS database account.

The record

CVE
CVE-2023-5591
Published
Oct 16, 2023
Updated
Sep 16, 2024
Vendor
LibreNMS
Product
LibreNMS
Classifications
CWE-89, T1190
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Oct 16, 2023CVE publishedPublication date reported by the CVE source.
  2. Sep 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=unspecified <23.10.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

LibreNMS · LibreNMSversion=unspecified <23.10.0

Published CVSS scores

7.8huntr.devCVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
6.5NIST NVDCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/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-89Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')
T1190Exploit Public-Facing Application

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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