---
id: CVE-2020-36947
title: >-
  LibreNMS 1.46 contains an authenticated SQL injection vulnerability in the MAC
  accounting graph endpoint that allows remote attackers to extract database
  information
summary: >-
  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' par…
severity: high
cvss: 7.1
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:N'
cwe:
  - CWE-89
vendor: librenms
product: librenms
affected:
  - librenms = 1.46
published: '2026-01-27'
updated: '2026-10-08'
sourceUpdated: '2026-10-08T16:16:43.840'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2020-36947'
references:
  - url: 'https://community.librenms.org/'
    label: disclosure@vulncheck.com
  - url: 'https://github.com/librenms/librenms'
    label: disclosure@vulncheck.com
  - url: 'https://www.exploit-db.com/exploits/49246'
    label: disclosure@vulncheck.com
  - url: 'https://www.librenms.org'
    label: disclosure@vulncheck.com
  - url: >-
      https://www.vulncheck.com/advisories/librenms-mac-accounting-graph-authenticated-sql-injection
    label: disclosure@vulncheck.com
  - url: 'https://community.librenms.org/'
    label: 134c704f-9b21-4f2e-91b3-4a467353bcc0
tags:
  - nvd
  - cve.org
  - exploit-available
exploitAvailable: true
ssvc:
  exploitation: poc
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2026-01-27T21:08:15.808529Z'
epss: 0.00464
epssPercentile: 0.38165
ingestedAt: '2026-10-08T16:52:14.671Z'
---

## Overview

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.

## Affected

- `librenms = 1.46`

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.