CVE-2020-36947: LibreNMS contains an authenticated SQL Injection vulnerability

CVE-2020-36947 · Severity: high · CVSS 7.1 · Published 2026-01-27

LibreNMS 1.46 contains an authenticated SQL injection vulnerability in the MAC accounting graph endpoint that allows remote attackers to extract database information. Attackers can exploit the vulnerability by manipulating the 'sort' parameter with crafted SQL injection techniques to retrieve sensitive database contents through time-based blind SQL injection.

Technologies: Librenms, librenms/librenms (Packagist). Vendors: Librenms, Packagist.

Quick answers

Is CVE-2020-36947 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2020-36947 being exploited in the wild.
How severe is CVE-2020-36947?
High severity, with a CVSS score of 7.1, published 27 January 2026.
Which products and versions are affected?
librenms/librenms (Packagist) ECOSYSTEM:introduced=0,last_affected=1.46.
Is there a fix for CVE-2020-36947?
No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
Am I affected by CVE-2020-36947?
Check whether you run Librenms or librenms/librenms (Packagist) at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

Affected products

  • Librenms
  • librenms/librenms (Packagist) ECOSYSTEM:introduced=0,last_affected=1.46

Identifiers

  • CVE-2020-36947
  • GHSA-qp2j-v5jg-hg68

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