CVE-2020-36947

Name: CVE-2020-36947
Creator: NVD / NIST
Published: 2026-01-27T16:16:12.04+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.1/10EPSS 0.40%

Last modified Jun 17, 2026

CVE-2020-36947 is a high-severity vulnerability rated 7.1/10 on the CVSS scale. 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.. EPSS estimates a 0.40% chance of exploitation in the next 30 days.

Description

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.

Metrics

CVSS 3.1

6.5/10

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

CVSS 4.0

7.1/10

CVSS: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

EPSS Probability

0.40%

31.8th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-89

Affected Software

Vendor	Product	Versions
Librenms	Librenms	1.46

References

https://community.librenms.org/Product
https://github.com/librenms/librenmsProduct
https://www.exploit-db.com/exploits/49246Exploit, Third Party Advisory, VDB Entry
https://www.librenms.orgProduct
https://www.vulncheck.com/advisories/librenms-mac-accounting-graph-authenticated-sql-injectionThird Party Advisory
https://community.librenms.org/Product

Timeline

Published: Jan 27, 2026
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2020-36947?

How severe is CVE-2020-36947?

CVE-2020-36947 has a CVSS score of 7.1/10 (HIGH severity). The EPSS model estimates a 0.40% probability of exploitation in the next 30 days.

How do I fix CVE-2020-36947?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2020-36947?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST