CVE-2023-37154

HIGHNVD 8.48.4—
EchelonGraph scoreMEDIUM confidence

This high-severity CVE scores 8.4 under NVD CVSS v3. EPSS exploit probability: 0.5%, top 63% 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).

Triggered by: NVD CVSS baseline
Sources: epss, nvd
Elevated
8.4EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 8.4Exploit: Elevated riskExposed: 0

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

check_by_ssh in Nagios nagios-plugins 2.4.5 allows arbitrary command execution via ProxyCommand, LocalCommand, and PermitLocalCommand with \${IFS}. This has been categorized both as fixed in e8810de, and as intended behavior.

CVSS v3
8.4
EG Score
8.4(medium)
EG Risk
54(Track*)
EG Risk 54/100SSVC: 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
Severity84% × 45%
Exploitation40% × 40%
Automatability0% × 15%
Action: Watch closely — could escalate to Attend.
EPSS PROB
0%
EPSS %ILE
40%
KEV
Not listed

Published

October 9, 2024

Last Modified

April 15, 2026

Advisory Details (3)

Auto-updated Sep 2, 2026
🔬 Proof of concept available. Patch available. Sources: github, github_commit.
generic

Nagios Plugins: Hacking Monitored Servers with check_by_ssh and Argument Injection: CVE-2023-37154 | Joshua Rogers' Scribbles

https://joshua.hu/nagios-hacking-cve-2023-37154
github_commit Patch Available

commit e8810de21be8 (nagios-plugins/nagios-plugins)

Patch available: nagios-plugins/nagios-plugins release-2.4.5 (contains commit e8810de21be8)

https://github.com/nagios-plugins/nagios-plugins/commit/e8810de21be80148562b7e0168b0a62aeedffde6
github Patch Available🟡 PoC Available

Local command execution in check_by_ssh.c · Advisory · monitoring-plugins/monitoring-plugins · GitHub

https://github.com/monitoring-plugins/monitoring-plugins/security/advisories/GHSA-p3gv-vmpx-hhw4

Affected Packages

(4 across 4 ecosystems)
Debian:11(1)
PackageVulnerable rangeFixed inDependents
monitoring-plugins2.3.1-1 ... 2.4.0-5 (19 versions)——
Debian:12(1)
PackageVulnerable rangeFixed inDependents
monitoring-plugins2.3.3-5 ... 2.4.0-5 (11 versions)——
Debian:13(1)
PackageVulnerable rangeFixed inDependents
monitoring-plugins2.4.0-3, 2.4.0-3+deb13u1, 2.4.0-4, 2.4.0-5——
Debian:14(1)
PackageVulnerable rangeFixed inDependents
monitoring-plugins2.4.0-3, 2.4.0-4, 2.4.0-5——

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 3× in last 7d / 24× 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.

Showing the most recent 100 of 197 total refreshes for this CVE.

  1. 2026-09-20 20:14 UTCEPSS rescore
  2. 2026-09-17 14:06 UTCOSV refresh
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  9. 2026-08-13 02:00 UTCOSV refresh
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Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2023-37154?
CVE-2023-37154 is a high vulnerability published on October 9, 2024. checkbyssh in Nagios nagios-plugins 2.4.5 allows arbitrary command execution via ProxyCommand, LocalCommand, and PermitLocalCommand with \${IFS}. This has been categorized both as fixed in e8810de, and as intended behavior.
When was CVE-2023-37154 disclosed?
CVE-2023-37154 was first published in the National Vulnerability Database on October 9, 2024, with the most recent update on April 15, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2023-37154 actively exploited?
CVE-2023-37154 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0% probability of exploitation in the next 30 days, which ranks it in the top 60.1% of all scored CVEs.
What is the CVSS score of CVE-2023-37154?
CVE-2023-37154 has a CVSS v3 base score of 8.4 (NVD).
How do I remediate CVE-2023-37154?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2023-37154, 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.

Dependency Blast Radius

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