CVE-2020-36947

LibreNMS 1.46 - MAC Accounting Graph Authenticated SQL Injection

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

CVSS v4.0 VULNCHECK

7.1 HIGHCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

CVSS v4.0 GitHub

7.1 HIGHCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N

CVSS v3.1 NVD

6.5 MEDIUMCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

CVSS v3.1 VULNCHECK

7.1 HIGHCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:N

EPSS

0.46% chance of exploitation in the next 30 days, 39th percentile

Published

2026-01-27

Updated

2026-10-08

Proof-of-concept exploits (1)

• https://www.exploit-db.com/exploits/49246

Security advisories

• https://www.vulncheck.com/advisories/librenms-mac-accounting-graph-authenticated-sql-inje…
• advisories/GHSA-qp2j-v5jg-hg68
• https://community.librenms.org
• librenms/librenms
• https://www.librenms.org

References

• CVE Record
• NVD entry