CVE-2022-43440 | Privilege escalation via manipulated unixcat executable

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

Published: 2023-02-09 Last update: 2026-06-17 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2022-43440 is rated Moderate Risk (40.1/100): CVSS High severity, with low exploitation likelihood (EPSS 0.23%). Review affected assets and schedule remediation.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2022-43440

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-06-15 0.06% 0.23% +0.17%
2 2025-03-17 0.04% 0.06% +0.02%
3 2023-03-07 — 0.04% —

Full EPSS history (4 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2022-43440

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
8.8 3.1 HIGH
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H Click to expand
Attack vector (AV:L)
They already need access on the box, or another person has to do something wrong; it’s not a remote drive-by.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:L)
A normal user session is enough; they don’t have to be admin.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:C)
Breaking this can reach past the original component and bite other resources—bigger blast radius.
Confidentiality (C:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:H)
They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 2.0 6.0 [email protected]
7.8 3.1 HIGH
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H Click to expand
Attack vector (AV:L)
They already need access on the box, or another person has to do something wrong; it’s not a remote drive-by.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:L)
A normal user session is enough; they don’t have to be admin.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:H)
They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 1.8 5.9 [email protected]

Weakness enumeration for CVE-2022-43440

OS Trackers for CVE-2022-43440

vendor priority summary link
ubuntu medium CVE-2022-43440 medium priority: Ubuntu including 1 source packages (check-mk), 7 status rows across 7 suites (bionic, focal, jammy, kinetic, trusty, upstream, xenial): DNE 3, needs-triage 3, ignored 1. https://ubuntu.com/security/CVE-2022-43440

Affected software / configurations for CVE-2022-43440

Vendor Product Version Raw CPE
checkmk checkmk < 1.6.0 cpe:2.3:a:checkmk:checkmk:*:*:*:*:*:*:*:*
checkmk checkmk 1.6.0 cpe:2.3:a:checkmk:checkmk:1.6.0:-:*:*:*:*:*:*
checkmk checkmk 1.6.0 cpe:2.3:a:checkmk:checkmk:1.6.0:b1:*:*:*:*:*:*
checkmk checkmk 1.6.0 cpe:2.3:a:checkmk:checkmk:1.6.0:b10:*:*:*:*:*:*
checkmk checkmk 1.6.0 cpe:2.3:a:checkmk:checkmk:1.6.0:b11:*:*:*:*:*:*
checkmk checkmk 1.6.0 cpe:2.3:a:checkmk:checkmk:1.6.0:b12:*:*:*:*:*:*
checkmk checkmk 1.6.0 cpe:2.3:a:checkmk:checkmk:1.6.0:b2:*:*:*:*:*:*
checkmk checkmk 1.6.0 cpe:2.3:a:checkmk:checkmk:1.6.0:b3:*:*:*:*:*:*
checkmk checkmk 1.6.0 cpe:2.3:a:checkmk:checkmk:1.6.0:b4:*:*:*:*:*:*
checkmk checkmk 1.6.0 cpe:2.3:a:checkmk:checkmk:1.6.0:b5:*:*:*:*:*:*
checkmk checkmk 1.6.0 cpe:2.3:a:checkmk:checkmk:1.6.0:b6:*:*:*:*:*:*
checkmk checkmk 1.6.0 cpe:2.3:a:checkmk:checkmk:1.6.0:b7:*:*:*:*:*:*
checkmk checkmk 1.6.0 cpe:2.3:a:checkmk:checkmk:1.6.0:b8:*:*:*:*:*:*
checkmk checkmk 1.6.0 cpe:2.3:a:checkmk:checkmk:1.6.0:b9:*:*:*:*:*:*
checkmk checkmk 1.6.0 cpe:2.3:a:checkmk:checkmk:1.6.0:p1:*:*:*:*:*:*
checkmk checkmk 1.6.0 cpe:2.3:a:checkmk:checkmk:1.6.0:p10:*:*:*:*:*:*
checkmk checkmk 1.6.0 cpe:2.3:a:checkmk:checkmk:1.6.0:p11:*:*:*:*:*:*
checkmk checkmk 1.6.0 cpe:2.3:a:checkmk:checkmk:1.6.0:p12:*:*:*:*:*:*
checkmk checkmk 1.6.0 cpe:2.3:a:checkmk:checkmk:1.6.0:p13:*:*:*:*:*:*
checkmk checkmk 1.6.0 cpe:2.3:a:checkmk:checkmk:1.6.0:p14:*:*:*:*:*:*
checkmk checkmk 1.6.0 cpe:2.3:a:checkmk:checkmk:1.6.0:p15:*:*:*:*:*:*
checkmk checkmk 1.6.0 cpe:2.3:a:checkmk:checkmk:1.6.0:p16:*:*:*:*:*:*
checkmk checkmk 1.6.0 cpe:2.3:a:checkmk:checkmk:1.6.0:p17:*:*:*:*:*:*
checkmk checkmk 1.6.0 cpe:2.3:a:checkmk:checkmk:1.6.0:p18:*:*:*:*:*:*
checkmk checkmk 1.6.0 cpe:2.3:a:checkmk:checkmk:1.6.0:p19:*:*:*:*:*:*
checkmk checkmk 1.6.0 cpe:2.3:a:checkmk:checkmk:1.6.0:p2:*:*:*:*:*:*
checkmk checkmk 1.6.0 cpe:2.3:a:checkmk:checkmk:1.6.0:p20:*:*:*:*:*:*
checkmk checkmk 1.6.0 cpe:2.3:a:checkmk:checkmk:1.6.0:p21:*:*:*:*:*:*
checkmk checkmk 1.6.0 cpe:2.3:a:checkmk:checkmk:1.6.0:p22:*:*:*:*:*:*
checkmk checkmk 1.6.0 cpe:2.3:a:checkmk:checkmk:1.6.0:p23:*:*:*:*:*:*
checkmk checkmk 1.6.0 cpe:2.3:a:checkmk:checkmk:1.6.0:p24:*:*:*:*:*:*
checkmk checkmk 1.6.0 cpe:2.3:a:checkmk:checkmk:1.6.0:p25:*:*:*:*:*:*
checkmk checkmk 1.6.0 cpe:2.3:a:checkmk:checkmk:1.6.0:p26:*:*:*:*:*:*
checkmk checkmk 1.6.0 cpe:2.3:a:checkmk:checkmk:1.6.0:p27:*:*:*:*:*:*
checkmk checkmk 1.6.0 cpe:2.3:a:checkmk:checkmk:1.6.0:p28:*:*:*:*:*:*
checkmk checkmk 1.6.0 cpe:2.3:a:checkmk:checkmk:1.6.0:p3:*:*:*:*:*:*
checkmk checkmk 1.6.0 cpe:2.3:a:checkmk:checkmk:1.6.0:p4:*:*:*:*:*:*
checkmk checkmk 1.6.0 cpe:2.3:a:checkmk:checkmk:1.6.0:p5:*:*:*:*:*:*
checkmk checkmk 1.6.0 cpe:2.3:a:checkmk:checkmk:1.6.0:p6:*:*:*:*:*:*
checkmk checkmk 1.6.0 cpe:2.3:a:checkmk:checkmk:1.6.0:p7:*:*:*:*:*:*
checkmk checkmk 1.6.0 cpe:2.3:a:checkmk:checkmk:1.6.0:p8:*:*:*:*:*:*
checkmk checkmk 1.6.0 cpe:2.3:a:checkmk:checkmk:1.6.0:p9:*:*:*:*:*:*
checkmk checkmk 2.0.0 cpe:2.3:a:checkmk:checkmk:2.0.0:-:*:*:*:*:*:*
checkmk checkmk 2.0.0 cpe:2.3:a:checkmk:checkmk:2.0.0:b1:*:*:*:*:*:*
checkmk checkmk 2.0.0 cpe:2.3:a:checkmk:checkmk:2.0.0:b2:*:*:*:*:*:*
checkmk checkmk 2.0.0 cpe:2.3:a:checkmk:checkmk:2.0.0:b3:*:*:*:*:*:*
checkmk checkmk 2.0.0 cpe:2.3:a:checkmk:checkmk:2.0.0:b4:*:*:*:*:*:*
checkmk checkmk 2.0.0 cpe:2.3:a:checkmk:checkmk:2.0.0:b5:*:*:*:*:*:*
checkmk checkmk 2.0.0 cpe:2.3:a:checkmk:checkmk:2.0.0:b6:*:*:*:*:*:*
checkmk checkmk 2.0.0 cpe:2.3:a:checkmk:checkmk:2.0.0:b7:*:*:*:*:*:*
checkmk checkmk 2.0.0 cpe:2.3:a:checkmk:checkmk:2.0.0:b8:*:*:*:*:*:*
checkmk checkmk 2.0.0 cpe:2.3:a:checkmk:checkmk:2.0.0:i1:*:*:*:*:*:*
checkmk checkmk 2.0.0 cpe:2.3:a:checkmk:checkmk:2.0.0:p1:*:*:*:*:*:*
checkmk checkmk 2.0.0 cpe:2.3:a:checkmk:checkmk:2.0.0:p10:*:*:*:*:*:*
checkmk checkmk 2.0.0 cpe:2.3:a:checkmk:checkmk:2.0.0:p11:*:*:*:*:*:*
checkmk checkmk 2.0.0 cpe:2.3:a:checkmk:checkmk:2.0.0:p12:*:*:*:*:*:*
checkmk checkmk 2.0.0 cpe:2.3:a:checkmk:checkmk:2.0.0:p13:*:*:*:*:*:*
checkmk checkmk 2.0.0 cpe:2.3:a:checkmk:checkmk:2.0.0:p14:*:*:*:*:*:*
checkmk checkmk 2.0.0 cpe:2.3:a:checkmk:checkmk:2.0.0:p15:*:*:*:*:*:*
checkmk checkmk 2.0.0 cpe:2.3:a:checkmk:checkmk:2.0.0:p16:*:*:*:*:*:*
checkmk checkmk 2.0.0 cpe:2.3:a:checkmk:checkmk:2.0.0:p17:*:*:*:*:*:*
checkmk checkmk 2.0.0 cpe:2.3:a:checkmk:checkmk:2.0.0:p18:*:*:*:*:*:*
checkmk checkmk 2.0.0 cpe:2.3:a:checkmk:checkmk:2.0.0:p19:*:*:*:*:*:*
checkmk checkmk 2.0.0 cpe:2.3:a:checkmk:checkmk:2.0.0:p2:*:*:*:*:*:*
checkmk checkmk 2.0.0 cpe:2.3:a:checkmk:checkmk:2.0.0:p20:*:*:*:*:*:*
checkmk checkmk 2.0.0 cpe:2.3:a:checkmk:checkmk:2.0.0:p21:*:*:*:*:*:*
checkmk checkmk 2.0.0 cpe:2.3:a:checkmk:checkmk:2.0.0:p22:*:*:*:*:*:*
checkmk checkmk 2.0.0 cpe:2.3:a:checkmk:checkmk:2.0.0:p23:*:*:*:*:*:*
checkmk checkmk 2.0.0 cpe:2.3:a:checkmk:checkmk:2.0.0:p24:*:*:*:*:*:*
checkmk checkmk 2.0.0 cpe:2.3:a:checkmk:checkmk:2.0.0:p3:*:*:*:*:*:*
checkmk checkmk 2.0.0 cpe:2.3:a:checkmk:checkmk:2.0.0:p4:*:*:*:*:*:*
checkmk checkmk 2.0.0 cpe:2.3:a:checkmk:checkmk:2.0.0:p5:*:*:*:*:*:*
checkmk checkmk 2.0.0 cpe:2.3:a:checkmk:checkmk:2.0.0:p6:*:*:*:*:*:*
checkmk checkmk 2.0.0 cpe:2.3:a:checkmk:checkmk:2.0.0:p7:*:*:*:*:*:*
checkmk checkmk 2.0.0 cpe:2.3:a:checkmk:checkmk:2.0.0:p8:*:*:*:*:*:*
checkmk checkmk 2.0.0 cpe:2.3:a:checkmk:checkmk:2.0.0:p9:*:*:*:*:*:*
checkmk checkmk 2.1.0 cpe:2.3:a:checkmk:checkmk:2.1.0:-:*:*:*:*:*:*
checkmk checkmk 2.1.0 cpe:2.3:a:checkmk:checkmk:2.1.0:b1:*:*:*:*:*:*
checkmk checkmk 2.1.0 cpe:2.3:a:checkmk:checkmk:2.1.0:b2:*:*:*:*:*:*
checkmk checkmk 2.1.0 cpe:2.3:a:checkmk:checkmk:2.1.0:b3:*:*:*:*:*:*

References for CVE-2022-43440

URL Tags
https://checkmk.com/werk/14087 Vendor Advisory
cvelogic Threat Intelligence