CVE-2018-6926

HIGHNVD 7.27.2—
EchelonGraph scoreMEDIUM confidence

Score 7.2 from GitHub Security Advisory (severity: HIGH) published 2022-05-14. NVD baseline CVSS 7.2; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
Trending — 3 sources updated this week
7.2
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 2%CVSS: 7.2Exploit: NoneExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

In app/Controller/ServersController.php in MISP 2.4.87, a server setting permitted the override of a path variable on certain Red Hed Enterprise Linux and CentOS systems (where rh_shell_fix was enabled), and consequently allowed site admins to inject arbitrary OS commands. The impact is limited by the setting being only accessible to the site administrator.

CVSS v3
7.2
EG Score
7.2(medium)
EG Risk
38(Track)
EG Risk 38/100SSVC: 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 computed
Severity72% × 45%
Exploitation2% × 40%
Automatability30% × 15%
Action: Routine — remediate on your standard cadence.
EPSS
74.3%
KEV
Not listed

Published

February 12, 2018

Last Modified

June 22, 2026

Advisory Details (1)

Auto-updated Jun 22, 2026
Upstream fix merged — awaiting tagged release. Sources: github_commit.
github_commit

commit 0a2aa9d52492 (MISP/MISP)

Fix landed in MISP/MISP commit 0a2aa9d52492 — awaiting tagged release

https://github.com/MISP/MISP/commit/0a2aa9d52492d960b9a161160acedbe9caaa4126

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 13× in last 7d / 46× 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.

  1. 2026-07-23 14:15 UTCEPSS rescore
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  3. 2026-07-23 01:37 UTCEG score recompute
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Frequently asked(5)

What is CVE-2018-6926?
CVE-2018-6926 is a high vulnerability published on February 12, 2018. In app/Controller/ServersController.php in MISP 2.4.87, a server setting permitted the override of a path variable on certain Red Hed Enterprise Linux and CentOS systems (where rhshellfix was enabled), and consequently allowed site admins to inject arbitrary OS commands. The impact is limited by…
When was CVE-2018-6926 disclosed?
CVE-2018-6926 was first published in the National Vulnerability Database on February 12, 2018, with the most recent update on June 22, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2018-6926 actively exploited?
CVE-2018-6926 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 74.3% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2018-6926?
CVE-2018-6926 has a CVSS v3 base score of 7.2 (NVD).
How do I remediate CVE-2018-6926?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2018-6926, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

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