CVE-2025-39666 (GCVE-0-2025-39666)
Vulnerability from cvelistv5 – Published: 2026-04-07 12:09 – Updated: 2026-04-07 13:18
VLAI?
Title
omd: Local privilege escalation when executing omd commands as root
Summary
Local privilege escalation in Checkmk 2.2.0 (EOL), Checkmk 2.3.0 before 2.3.0p46, Checkmk 2.4.0 before 2.4.0p25, and Checkmk 2.5.0 (beta) before 2.5.0b3 allows a site user to escalate their privileges to root, by manipulating files in the site context that are processed when the `omd` administrative command is run by root.
Severity ?
CWE
Assigner
References
| URL | Tags | ||||
|---|---|---|---|---|---|
|
|||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Checkmk GmbH | Checkmk |
Affected:
2.2.0
(semver)
Affected: 2.3.0 , < 2.3.0p46 (semver) Affected: 2.4.0 , < 2.4.0p25 (semver) Affected: 2.5.0b1 , < 2.5.0b3 (semver) |
{
"containers": {
"adp": [
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2025-39666",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "total"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-04-07T13:18:12.687066Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-04-07T13:18:19.609Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"product": "Checkmk",
"vendor": "Checkmk GmbH",
"versions": [
{
"status": "affected",
"version": "2.2.0",
"versionType": "semver"
},
{
"lessThan": "2.3.0p46",
"status": "affected",
"version": "2.3.0",
"versionType": "semver"
},
{
"lessThan": "2.4.0p25",
"status": "affected",
"version": "2.4.0",
"versionType": "semver"
},
{
"lessThan": "2.5.0b3",
"status": "affected",
"version": "2.5.0b1",
"versionType": "semver"
}
]
}
],
"cpeApplicability": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:a:checkmk:checkmk:2.2.0:*:*:*:*:*:*:*",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:checkmk:checkmk:*:*:*:*:*:*:*:*",
"versionEndExcluding": "2.3.0p46",
"versionStartIncluding": "2.3.0",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:checkmk:checkmk:*:*:*:*:*:*:*:*",
"versionEndExcluding": "2.4.0p25",
"versionStartIncluding": "2.4.0",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:checkmk:checkmk:*:*:*:*:*:*:*:*",
"versionEndExcluding": "2.5.0b3",
"versionStartIncluding": "2.5.0b1",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "Local privilege escalation in Checkmk 2.2.0 (EOL), Checkmk 2.3.0 before 2.3.0p46, Checkmk 2.4.0 before 2.4.0p25, and Checkmk 2.5.0 (beta) before 2.5.0b3 allows a site user to escalate their privileges to root, by manipulating files in the site context that are processed when the `omd` administrative command is run by root."
}
],
"impacts": [
{
"capecId": "CAPEC-471",
"descriptions": [
{
"lang": "en",
"value": "CAPEC-471: Search Order Hijacking"
}
]
},
{
"capecId": "CAPEC-17",
"descriptions": [
{
"lang": "en",
"value": "CAPEC-17: Accessing, Modifying or Executing Executable Files"
}
]
}
],
"metrics": [
{
"cvssV4_0": {
"baseScore": 9.3,
"baseSeverity": "CRITICAL",
"vectorString": "CVSS:4.0/AV:L/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H",
"version": "4.0"
}
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-426",
"description": "CWE-426: Untrusted Search Path",
"lang": "en",
"type": "CWE"
}
]
},
{
"descriptions": [
{
"cweId": "CWE-829",
"description": "CWE-829: Inclusion of Functionality from Untrusted Control Sphere",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-04-07T12:09:07.609Z",
"orgId": "f7d6281c-4801-44ce-ace2-493291dedb0f",
"shortName": "Checkmk"
},
"references": [
{
"tags": [
"vendor-advisory"
],
"url": "https://checkmk.com/werk/18891"
}
],
"title": "omd: Local privilege escalation when executing omd commands as root",
"x_generator": {
"engine": "cvelib 1.8.0"
}
}
},
"cveMetadata": {
"assignerOrgId": "f7d6281c-4801-44ce-ace2-493291dedb0f",
"assignerShortName": "Checkmk",
"cveId": "CVE-2025-39666",
"datePublished": "2026-04-07T12:09:07.609Z",
"dateReserved": "2025-04-16T07:07:38.257Z",
"dateUpdated": "2026-04-07T13:18:19.609Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2",
"vulnerability-lookup:meta": {
"nvd": "{\"cve\":{\"id\":\"CVE-2025-39666\",\"sourceIdentifier\":\"security@checkmk.com\",\"published\":\"2026-04-07T13:16:44.847\",\"lastModified\":\"2026-04-07T13:20:11.643\",\"vulnStatus\":\"Undergoing Analysis\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"Local privilege escalation in Checkmk 2.2.0 (EOL), Checkmk 2.3.0 before 2.3.0p46, Checkmk 2.4.0 before 2.4.0p25, and Checkmk 2.5.0 (beta) before 2.5.0b3 allows a site user to escalate their privileges to root, by manipulating files in the site context that are processed when the `omd` administrative command is run by root.\"}],\"metrics\":{\"cvssMetricV40\":[{\"source\":\"security@checkmk.com\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"4.0\",\"vectorString\":\"CVSS:4.0/AV:L/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X\",\"baseScore\":9.3,\"baseSeverity\":\"CRITICAL\",\"attackVector\":\"LOCAL\",\"attackComplexity\":\"LOW\",\"attackRequirements\":\"NONE\",\"privilegesRequired\":\"HIGH\",\"userInteraction\":\"NONE\",\"vulnConfidentialityImpact\":\"HIGH\",\"vulnIntegrityImpact\":\"HIGH\",\"vulnAvailabilityImpact\":\"HIGH\",\"subConfidentialityImpact\":\"HIGH\",\"subIntegrityImpact\":\"HIGH\",\"subAvailabilityImpact\":\"HIGH\",\"exploitMaturity\":\"NOT_DEFINED\",\"confidentialityRequirement\":\"NOT_DEFINED\",\"integrityRequirement\":\"NOT_DEFINED\",\"availabilityRequirement\":\"NOT_DEFINED\",\"modifiedAttackVector\":\"NOT_DEFINED\",\"modifiedAttackComplexity\":\"NOT_DEFINED\",\"modifiedAttackRequirements\":\"NOT_DEFINED\",\"modifiedPrivilegesRequired\":\"NOT_DEFINED\",\"modifiedUserInteraction\":\"NOT_DEFINED\",\"modifiedVulnConfidentialityImpact\":\"NOT_DEFINED\",\"modifiedVulnIntegrityImpact\":\"NOT_DEFINED\",\"modifiedVulnAvailabilityImpact\":\"NOT_DEFINED\",\"modifiedSubConfidentialityImpact\":\"NOT_DEFINED\",\"modifiedSubIntegrityImpact\":\"NOT_DEFINED\",\"modifiedSubAvailabilityImpact\":\"NOT_DEFINED\",\"Safety\":\"NOT_DEFINED\",\"Automatable\":\"NOT_DEFINED\",\"Recovery\":\"NOT_DEFINED\",\"valueDensity\":\"NOT_DEFINED\",\"vulnerabilityResponseEffort\":\"NOT_DEFINED\",\"providerUrgency\":\"NOT_DEFINED\"}}]},\"weaknesses\":[{\"source\":\"security@checkmk.com\",\"type\":\"Secondary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-426\"},{\"lang\":\"en\",\"value\":\"CWE-829\"}]}],\"references\":[{\"url\":\"https://checkmk.com/werk/18891\",\"source\":\"security@checkmk.com\"}]}}",
"vulnrichment": {
"containers": "{\"adp\": [{\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2025-39666\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"none\"}, {\"Automatable\": \"no\"}, {\"Technical Impact\": \"total\"}], \"version\": \"2.0.3\", \"timestamp\": \"2026-04-07T13:18:12.687066Z\"}}}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2026-04-07T13:18:16.178Z\"}}], \"cna\": {\"title\": \"omd: Local privilege escalation when executing omd commands as root\", \"impacts\": [{\"capecId\": \"CAPEC-471\", \"descriptions\": [{\"lang\": \"en\", \"value\": \"CAPEC-471: Search Order Hijacking\"}]}, {\"capecId\": \"CAPEC-17\", \"descriptions\": [{\"lang\": \"en\", \"value\": \"CAPEC-17: Accessing, Modifying or Executing Executable Files\"}]}], \"metrics\": [{\"cvssV4_0\": {\"version\": \"4.0\", \"baseScore\": 9.3, \"baseSeverity\": \"CRITICAL\", \"vectorString\": \"CVSS:4.0/AV:L/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H\"}}], \"affected\": [{\"vendor\": \"Checkmk GmbH\", \"product\": \"Checkmk\", \"versions\": [{\"status\": \"affected\", \"version\": \"2.2.0\", \"versionType\": \"semver\"}, {\"status\": \"affected\", \"version\": \"2.3.0\", \"lessThan\": \"2.3.0p46\", \"versionType\": \"semver\"}, {\"status\": \"affected\", \"version\": \"2.4.0\", \"lessThan\": \"2.4.0p25\", \"versionType\": \"semver\"}, {\"status\": \"affected\", \"version\": \"2.5.0b1\", \"lessThan\": \"2.5.0b3\", \"versionType\": \"semver\"}], \"defaultStatus\": \"unaffected\"}], \"references\": [{\"url\": \"https://checkmk.com/werk/18891\", \"tags\": [\"vendor-advisory\"]}], \"x_generator\": {\"engine\": \"cvelib 1.8.0\"}, \"descriptions\": [{\"lang\": \"en\", \"value\": \"Local privilege escalation in Checkmk 2.2.0 (EOL), Checkmk 2.3.0 before 2.3.0p46, Checkmk 2.4.0 before 2.4.0p25, and Checkmk 2.5.0 (beta) before 2.5.0b3 allows a site user to escalate their privileges to root, by manipulating files in the site context that are processed when the `omd` administrative command is run by root.\"}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-426\", \"description\": \"CWE-426: Untrusted Search Path\"}]}, {\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-829\", \"description\": \"CWE-829: Inclusion of Functionality from Untrusted Control Sphere\"}]}], \"cpeApplicability\": [{\"nodes\": [{\"negate\": false, \"cpeMatch\": [{\"criteria\": \"cpe:2.3:a:checkmk:checkmk:2.2.0:*:*:*:*:*:*:*\", \"vulnerable\": true}, {\"criteria\": \"cpe:2.3:a:checkmk:checkmk:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"2.3.0p46\", \"versionStartIncluding\": \"2.3.0\"}, {\"criteria\": \"cpe:2.3:a:checkmk:checkmk:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"2.4.0p25\", \"versionStartIncluding\": \"2.4.0\"}, {\"criteria\": \"cpe:2.3:a:checkmk:checkmk:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"2.5.0b3\", \"versionStartIncluding\": \"2.5.0b1\"}], \"operator\": \"OR\"}]}], \"providerMetadata\": {\"orgId\": \"f7d6281c-4801-44ce-ace2-493291dedb0f\", \"shortName\": \"Checkmk\", \"dateUpdated\": \"2026-04-07T12:09:07.609Z\"}}}",
"cveMetadata": "{\"cveId\": \"CVE-2025-39666\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2026-04-07T13:18:19.609Z\", \"dateReserved\": \"2025-04-16T07:07:38.257Z\", \"assignerOrgId\": \"f7d6281c-4801-44ce-ace2-493291dedb0f\", \"datePublished\": \"2026-04-07T12:09:07.609Z\", \"assignerShortName\": \"Checkmk\"}",
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
}
}
Loading…
Loading…
Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
Loading…
Loading…