How severe is CVE-2022-43440?

CVE-2022-43440 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2022-43440 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (14th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2022-43440?

CVE-2022-43440 primarily affects Checkmk. In total, 86 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2022-43440?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2022-43440 published?

CVE-2022-43440 was published on 2023-02-09 and last updated on 2026-06-17.

CVE-2022-43440

CVE-2022-43440 is a high-severity vulnerability in Checkmk with a CVSS 3.x base score of 8.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-427.

Key facts

Severity: High (CVSS 3.x base score 8.8)
EPSS exploit prediction: 0% (14th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-427
Affected product: Checkmk
Published: 2023-02-09
Last modified: 2026-06-17

Description

Uncontrolled Search Path Element in Checkmk Agent in Tribe29 Checkmk before 2.1.0p1, before 2.0.0p25 and before 1.6.0p29 on a Checkmk server allows the site user to escalate privileges via a manipulated unixcat executable

Frequently asked questions

What is CVE-2022-43440?: Uncontrolled Search Path Element in Checkmk Agent in Tribe29 Checkmk before 2.1.0p1, before 2.0.0p25 and before 1.6.0p29 on a Checkmk server allows the site user to escalate privileges via a manipulated unixcat executable
How severe is CVE-2022-43440?: CVE-2022-43440 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2022-43440 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (14th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2022-43440?: CVE-2022-43440 primarily affects Checkmk. In total, 86 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2022-43440?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2022-43440 published?: CVE-2022-43440 was published on 2023-02-09 and last updated on 2026-06-17.

References

https://checkmk.com/werk/14087

Affected products (86)

cpe:2.3:a:checkmk:checkmk:*:*:*:*:*:*:*:*
cpe:2.3:a:checkmk:checkmk:1.6.0:-:*:*:*:*:*:*
cpe:2.3:a:checkmk:checkmk:1.6.0:b1:*:*:*:*:*:*
cpe:2.3:a:checkmk:checkmk:1.6.0:b10:*:*:*:*:*:*
cpe:2.3:a:checkmk:checkmk:1.6.0:b11:*:*:*:*:*:*
cpe:2.3:a:checkmk:checkmk:1.6.0:b12:*:*:*:*:*:*
cpe:2.3:a:checkmk:checkmk:1.6.0:b2:*:*:*:*:*:*
cpe:2.3:a:checkmk:checkmk:1.6.0:b3:*:*:*:*:*:*
cpe:2.3:a:checkmk:checkmk:1.6.0:b4:*:*:*:*:*:*
cpe:2.3:a:checkmk:checkmk:1.6.0:b5:*:*:*:*:*:*
cpe:2.3:a:checkmk:checkmk:1.6.0:b6:*:*:*:*:*:*
cpe:2.3:a:checkmk:checkmk:1.6.0:b7:*:*:*:*:*:*
cpe:2.3:a:checkmk:checkmk:1.6.0:b8:*:*:*:*:*:*
cpe:2.3:a:checkmk:checkmk:1.6.0:b9:*:*:*:*:*:*
cpe:2.3:a:checkmk:checkmk:1.6.0:p1:*:*:*:*:*:*
cpe:2.3:a:checkmk:checkmk:1.6.0:p10:*:*:*:*:*:*
cpe:2.3:a:checkmk:checkmk:1.6.0:p11:*:*:*:*:*:*
cpe:2.3:a:checkmk:checkmk:1.6.0:p12:*:*:*:*:*:*
cpe:2.3:a:checkmk:checkmk:1.6.0:p13:*:*:*:*:*:*
cpe:2.3:a:checkmk:checkmk:1.6.0:p14:*:*:*:*:*:*
cpe:2.3:a:checkmk:checkmk:1.6.0:p15:*:*:*:*:*:*
cpe:2.3:a:checkmk:checkmk:1.6.0:p16:*:*:*:*:*:*
cpe:2.3:a:checkmk:checkmk:1.6.0:p17:*:*:*:*:*:*
cpe:2.3:a:checkmk:checkmk:1.6.0:p18:*:*:*:*:*:*
cpe:2.3:a:checkmk:checkmk:1.6.0:p19:*:*:*:*:*:*
cpe:2.3:a:checkmk:checkmk:1.6.0:p2:*:*:*:*:*:*
cpe:2.3:a:checkmk:checkmk:1.6.0:p20:*:*:*:*:*:*
cpe:2.3:a:checkmk:checkmk:1.6.0:p21:*:*:*:*:*:*
cpe:2.3:a:checkmk:checkmk:1.6.0:p22:*:*:*:*:*:*
cpe:2.3:a:checkmk:checkmk:1.6.0:p23:*:*:*:*:*:*
cpe:2.3:a:checkmk:checkmk:1.6.0:p24:*:*:*:*:*:*
cpe:2.3:a:checkmk:checkmk:1.6.0:p25:*:*:*:*:*:*
cpe:2.3:a:checkmk:checkmk:1.6.0:p26:*:*:*:*:*:*
cpe:2.3:a:checkmk:checkmk:1.6.0:p27:*:*:*:*:*:*
cpe:2.3:a:checkmk:checkmk:1.6.0:p28:*:*:*:*:*:*
cpe:2.3:a:checkmk:checkmk:1.6.0:p3:*:*:*:*:*:*
cpe:2.3:a:checkmk:checkmk:1.6.0:p4:*:*:*:*:*:*
cpe:2.3:a:checkmk:checkmk:1.6.0:p5:*:*:*:*:*:*
cpe:2.3:a:checkmk:checkmk:1.6.0:p6:*:*:*:*:*:*
cpe:2.3:a:checkmk:checkmk:1.6.0:p7:*:*:*:*:*:*

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