Vulnerability Database

406,364

Total vulnerabilities in the database

CVE-2024-6542 — checkmk / checkmk

Improper Neutralization of Delimiters

Improper neutralization of livestatus command delimiters in mknotifyd in Checkmk <= 2.0.0p39, < 2.1.0p47, < 2.2.0p32 and < 2.3.0p11 allows arbitrary livestatus command execution.

  • Published: Jul 22, 2024
  • Updated: Oct 24, 2026
  • CVE: CVE-2024-6542
  • Severity: Medium
  • Exploit:
  • CISA KEV:

CVSS v3:

  • Severity: Medium
  • Score: 6.5
  • AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L

CWEs:

Software Affected versions
checkmk / checkmk = 2.0.0
checkmk / checkmk = 2.0.0-b1
checkmk / checkmk = 2.0.0-b2
checkmk / checkmk = 2.0.0-b3
checkmk / checkmk = 2.0.0-b4
checkmk / checkmk = 2.0.0-b5
checkmk / checkmk = 2.0.0-b6
checkmk / checkmk = 2.0.0-b7
checkmk / checkmk = 2.0.0-b8
checkmk / checkmk = 2.0.0-i1
checkmk / checkmk = 2.0.0-p1
checkmk / checkmk = 2.0.0-p10
checkmk / checkmk = 2.0.0-p11
checkmk / checkmk = 2.0.0-p12
checkmk / checkmk = 2.0.0-p13
checkmk / checkmk = 2.0.0-p14
checkmk / checkmk = 2.0.0-p15
checkmk / checkmk = 2.0.0-p16
checkmk / checkmk = 2.0.0-p17
checkmk / checkmk = 2.0.0-p18
checkmk / checkmk = 2.0.0-p19
checkmk / checkmk = 2.0.0-p2
checkmk / checkmk = 2.0.0-p20
checkmk / checkmk = 2.0.0-p21
checkmk / checkmk = 2.0.0-p22
checkmk / checkmk = 2.0.0-p23
checkmk / checkmk = 2.0.0-p24
checkmk / checkmk = 2.0.0-p25
checkmk / checkmk = 2.0.0-p26
checkmk / checkmk = 2.0.0-p27
checkmk / checkmk = 2.0.0-p28
checkmk / checkmk = 2.0.0-p29
checkmk / checkmk = 2.0.0-p3
checkmk / checkmk = 2.0.0-p30
checkmk / checkmk = 2.0.0-p31
checkmk / checkmk = 2.0.0-p32
checkmk / checkmk = 2.0.0-p33
checkmk / checkmk = 2.0.0-p34
checkmk / checkmk = 2.0.0-p35
checkmk / checkmk = 2.0.0-p36
checkmk / checkmk = 2.0.0-p37
checkmk / checkmk = 2.0.0-p38
checkmk / checkmk = 2.0.0-p39
checkmk / checkmk = 2.0.0-p4
checkmk / checkmk = 2.0.0-p5
checkmk / checkmk = 2.0.0-p6
checkmk / checkmk = 2.0.0-p7
checkmk / checkmk = 2.0.0-p8
checkmk / checkmk = 2.0.0-p9
checkmk / checkmk = 2.1.0
checkmk / checkmk = 2.1.0-b1
checkmk / checkmk = 2.1.0-b2
checkmk / checkmk = 2.1.0-b3
checkmk / checkmk = 2.1.0-b4
checkmk / checkmk = 2.1.0-b5
checkmk / checkmk = 2.1.0-b6
checkmk / checkmk = 2.1.0-b7
checkmk / checkmk = 2.1.0-b8
checkmk / checkmk = 2.1.0-b9
checkmk / checkmk = 2.1.0-p1
checkmk / checkmk = 2.1.0-p10
checkmk / checkmk = 2.1.0-p11
checkmk / checkmk = 2.1.0-p12
checkmk / checkmk = 2.1.0-p13
checkmk / checkmk = 2.1.0-p14
checkmk / checkmk = 2.1.0-p15
checkmk / checkmk = 2.1.0-p16
checkmk / checkmk = 2.1.0-p17
checkmk / checkmk = 2.1.0-p18
checkmk / checkmk = 2.1.0-p19
checkmk / checkmk = 2.1.0-p2
checkmk / checkmk = 2.1.0-p20
checkmk / checkmk = 2.1.0-p21
checkmk / checkmk = 2.1.0-p22
checkmk / checkmk = 2.1.0-p23
checkmk / checkmk = 2.1.0-p24
checkmk / checkmk = 2.1.0-p25
checkmk / checkmk = 2.1.0-p26
checkmk / checkmk = 2.1.0-p27
checkmk / checkmk = 2.1.0-p28
checkmk / checkmk = 2.1.0-p29
checkmk / checkmk = 2.1.0-p3
checkmk / checkmk = 2.1.0-p30
checkmk / checkmk = 2.1.0-p31
checkmk / checkmk = 2.1.0-p32
checkmk / checkmk = 2.1.0-p33
checkmk / checkmk = 2.1.0-p34
checkmk / checkmk = 2.1.0-p35
checkmk / checkmk = 2.1.0-p36
checkmk / checkmk = 2.1.0-p37
checkmk / checkmk = 2.1.0-p38
checkmk / checkmk = 2.1.0-p39
checkmk / checkmk = 2.1.0-p4
checkmk / checkmk = 2.1.0-p40
checkmk / checkmk = 2.1.0-p41
checkmk / checkmk = 2.1.0-p42
checkmk / checkmk = 2.1.0-p43
checkmk / checkmk = 2.1.0-p44
checkmk / checkmk = 2.1.0-p45
checkmk / checkmk = 2.1.0-p46
checkmk / checkmk = 2.1.0-p5
checkmk / checkmk = 2.1.0-p6
checkmk / checkmk = 2.1.0-p7
checkmk / checkmk = 2.1.0-p8
checkmk / checkmk = 2.1.0-p9
checkmk / checkmk = 2.2.0
checkmk / checkmk = 2.2.0-b1
checkmk / checkmk = 2.2.0-b2
checkmk / checkmk = 2.2.0-b3
checkmk / checkmk = 2.2.0-b4
checkmk / checkmk = 2.2.0-b5
checkmk / checkmk = 2.2.0-b6
checkmk / checkmk = 2.2.0-b7
checkmk / checkmk = 2.2.0-b8
checkmk / checkmk = 2.2.0-i1
checkmk / checkmk = 2.2.0-p1
checkmk / checkmk = 2.2.0-p10
checkmk / checkmk = 2.2.0-p11
checkmk / checkmk = 2.2.0-p12
checkmk / checkmk = 2.2.0-p13
checkmk / checkmk = 2.2.0-p14
checkmk / checkmk = 2.2.0-p15
checkmk / checkmk = 2.2.0-p16
checkmk / checkmk = 2.2.0-p17
checkmk / checkmk = 2.2.0-p18
checkmk / checkmk = 2.2.0-p19
checkmk / checkmk = 2.2.0-p2
checkmk / checkmk = 2.2.0-p20
checkmk / checkmk = 2.2.0-p21
checkmk / checkmk = 2.2.0-p22
checkmk / checkmk = 2.2.0-p23
checkmk / checkmk = 2.2.0-p24
checkmk / checkmk = 2.2.0-p25
checkmk / checkmk = 2.2.0-p26
checkmk / checkmk = 2.2.0-p27
checkmk / checkmk = 2.2.0-p28
checkmk / checkmk = 2.2.0-p29
checkmk / checkmk = 2.2.0-p3
checkmk / checkmk = 2.2.0-p30
checkmk / checkmk = 2.2.0-p31
checkmk / checkmk = 2.2.0-p4
checkmk / checkmk = 2.2.0-p5
checkmk / checkmk = 2.2.0-p6
checkmk / checkmk = 2.2.0-p7
checkmk / checkmk = 2.2.0-p8
checkmk / checkmk = 2.2.0-p9
checkmk / checkmk = 2.3.0
checkmk / checkmk = 2.3.0-p1
checkmk / checkmk = 2.3.0-p10
checkmk / checkmk = 2.3.0-p2
checkmk / checkmk = 2.3.0-p3
checkmk / checkmk = 2.3.0-p4
checkmk / checkmk = 2.3.0-p5
checkmk / checkmk = 2.3.0-p6
checkmk / checkmk = 2.3.0-p7
checkmk / checkmk = 2.3.0-p8
checkmk / checkmk = 2.3.0-p9

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A security vulnerability is a weakness in software, hardware, or configuration that can be exploited to compromise confidentiality, integrity, or availability. Many vulnerabilities are tracked as CVEs (Common Vulnerabilities and Exposures), which provide a standardized identifier so teams can coordinate patching, mitigation, and risk assessment across tools and vendors.

CVSS (Common Vulnerability Scoring System) estimates technical severity, but it doesn't automatically equal business risk. Prioritize using context like internet exposure, affected asset criticality, known exploitation (proof-of-concept or in-the-wild), and whether compensating controls exist. A "Medium" CVSS on an exposed, production system can be more urgent than a "Critical" on an isolated, non-production host.

A vulnerability is the underlying weakness. An exploit is the method or code used to take advantage of it. A zero-day is a vulnerability that is unknown to the vendor or has no publicly available fix when attackers begin using it. In practice, risk increases sharply when exploitation becomes reliable or widespread.

Recurring findings usually come from incomplete Asset Discovery, inconsistent patch management, inherited images, and configuration drift. In modern environments, you also need to watch the software supply chain: dependencies, containers, build pipelines, and third-party services can reintroduce the same weakness even after you patch a single host. Unknown or unmanaged assets (often called Shadow IT) are a common reason the same issues resurface.

Use a simple, repeatable triage model: focus first on externally exposed assets, high-value systems (identity, VPN, email, production), vulnerabilities with known exploits, and issues that enable remote code execution or privilege escalation. Then enforce patch SLAs and track progress using consistent metrics so remediation is steady, not reactive.

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