CVE-2023-37154

8.4 High

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.

Attack profile

How easy it is to exploit

Attack vector: Local
Complexity: Low
Privileges needed: None
User interaction: None

What an attacker can affect

Confidentiality: High
Integrity: High
Availability: High

Exploit likelihood

0.47%Up 0.4 points since Oct 10, 2024

What each source reports

CVE List Score used 8.4

Record: CVE-2023-37154
CVSS 3.1: 8.4 HighCVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness: CWE-77
Updated: 2026-11-02

EUVDEUVD-2023-41074 8.4

Record: EUVD-2023-41074
CVSS 3.1: 8.4 HighCVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Updated: 2026-11-03

NVD 8.4

Record: CVE-2023-37154
CVSS 3.1: 8.4 HighCVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness: CWE-77
Updated: 2026-11-02

OSV 8.4

Record: CVE-2023-37154
CVSS 3.1: 8.4 HighCVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Updated: 2026-11-02

OSVDEBIAN-CVE-2023-37154 8.4

Record: DEBIAN-CVE-2023-37154
CVSS 3.1: 8.4 HighCVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Updated: 2026-11-02

OSVUBUNTU-CVE-2023-37154 8.4

Record: UBUNTU-CVE-2023-37154
CVSS 3.1: 8.4 HighCVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Updated: 2026-11-02

Affected products

nagios plugins

Affected packages

Affected packages
Package	Affected	Fixed
`monitoring-plugins` Debian:12	All versions, plus listed versions 2.3.3-52.3.3-5+deb12u12.3.3-5+deb12u22.3.3-62.3.5-1 Show 6 moreShow less 2.4.0-12.4.0-22.4.0-32.4.0-3~exp12.4.0-42.4.0-5	None known
`monitoring-plugins` Debian:13	All versions, plus listed versions 2.4.0-32.4.0-3+deb13u12.4.0-42.4.0-5	None known
`monitoring-plugins` Debian:14	All versions, plus listed versions 2.4.0-32.4.0-42.4.0-5	None known
`monitoring-plugins` Ubuntu:16.04:LTS	All versions, plus listed versions 2.1.2-2ubuntu12.1.2-2ubuntu2	None known
`monitoring-plugins` Ubuntu:18.04:LTS	All versions, plus listed versions 2.2-3ubuntu12.2-3ubuntu22.2-3ubuntu32.2-3ubuntu3.18.04.1	None known
`monitoring-plugins` Ubuntu:20.04:LTS	All versions, plus listed versions 2.2-6build22.2-6ubuntu12.2-6ubuntu1.12.2-6ubuntu1.2	None known
`monitoring-plugins` Ubuntu:22.04:LTS	All versions, plus listed versions 2.3.1-1ubuntu22.3.1-1ubuntu32.3.1-1ubuntu4	None known
`monitoring-plugins` Ubuntu:24.04:LTS	All versions, plus listed versions 2.3.3-6ubuntu12.3.5-1ubuntu12.3.5-1ubuntu22.3.5-1ubuntu3	None known
`monitoring-plugins` Ubuntu:25.10	All versions, plus listed versions 2.4.0-1ubuntu1	None known
`monitoring-plugins` Ubuntu:26.10	All versions, plus listed versions 2.4.0-1ubuntu22.4.0-1ubuntu4	None known
`monitoring-plugins` Ubuntu:26.04:LTS	All versions, plus listed versions 2.4.0-1ubuntu12.4.0-1ubuntu2	None known

History

History
Recorded	Changed	Sources
Nov 3, 2026	aliases	EUVD
Nov 2, 2026	first indexed	CVE List, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2023-37154 is a high vulnerability (CVSS 8.4) in Nagios Plugins, published October 9, 2024. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.47%, the 40th percentile. No source names a fixed version.