LibreNMS versions before 26.3.0 are affected by an authenticated remote code execution vulnerability by abusing the Binary Locations config and the Netcommand feature. Successful exploitation requires administrative privileges. Exploitation could result in compromise of the underlying web server.
CVE-2026-6204
This high-severity CVE scores 7.2 under NVD CVSS v3. EPSS exploit probability: 7.5%, top 6% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).
- High severity, but no confirmed exploitation yet
No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.
- CVSS v3
- 7.2
- EG Score
- 7.2(medium)
- EG Risk
- 48(Track*)EG Risk 48/100SSVC: Track*
EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).
How it’s computedSeverity72% × 45%Exploitation40% × 40%Automatability0% × 15%Action: Watch closely — could escalate to Attend. - EPSS PROB
- 8%
- EPSS %ILE
- 94%
- KEV
- Not listed
Published
April 13, 2026
Last Modified
April 22, 2026
References (2)
- ab69c47f-b95e-4bf2-b2d9-4b1fd1b24b4ahttps://github.com/librenms/librenms/security/advisories/GHSA-pr3g-phhr-h8fh
- ab69c47f-b95e-4bf2-b2d9-4b1fd1b24b4ahttps://projectblack.io/blog/librenms-authenticated-rce-and-xss/#binary-path-rce-poc
Affected Packages
(1 across 1 ecosystem)
Packagist(1)
| Package | Vulnerable range | Fixed in | Dependents |
|---|---|---|---|
| librenms/librenms | 1.48 ... 26.2.0 (111 versions) | 26.3.0 | — |
Weakness Classification(1)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Data Freshness Timeline
(refreshed 8× in last 7d / 44× in last 30d)
Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.
- 2026-07-30 01:30 UTCEPSS rescore
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- 2026-07-23 03:21 UTCEG score recompute
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- 2026-07-20 12:02 UTCOSV refresh
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- 2026-05-26 07:18 UTCEPSS rescore
- 2026-05-21 22:43 UTCEPSS rescore
- 2026-05-20 17:40 UTCEG score recompute
- 2026-05-20 11:22 UTCEPSS rescore
Related CVEs(same CWE)
Same CWE
10 shownCWE-78
- CVE-2009-20011EG 10.0CRITICAL
- CVE-2011-10017EG 10.0CRITICAL
- CVE-2012-1166EG 10.0EPSS p91HIGH
- CVE-2012-2976EG 10.0EPSS p92HIGH
- CVE-2012-2953EG 10.0EPSS p99HIGH
- CVE-2011-4502EG 10.0EPSS p92HIGH
- CVE-2011-2148EG 10.0EPSS p92HIGH
- CVE-2011-0382EG 10.0EPSS p90HIGH
- CVE-2011-0381EG 10.0EPSS p92HIGH
- CVE-2011-0372EG 10.0HIGH
Frequently asked(5)
What is CVE-2026-6204?
When was CVE-2026-6204 disclosed?
Is CVE-2026-6204 actively exploited?
What is the CVSS score of CVE-2026-6204?
How do I remediate CVE-2026-6204?
Dependency Blast Radius
See which npm, PyPI, Go, and Maven packages are affected by CVE-2026-6204
Is Your Infrastructure Affected by CVE-2026-6204?
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