FKIE_CVE-2026-40058
Vulnerability from fkie_nvd - Published: 2026-09-15 18:17 - Updated: 2026-09-15 19:17
Severity
Summary
CrowdStrike released a security update to address a vulnerability in the Falcon sensor for Windows. The vulnerability only exists when the Microsoft Office File Malicious Macro Removal Windows policy setting is enabled and customers remain protected through the Cloud Anti-malware for Microsoft Office Files settings.
An update is available immediately for versions 7.34 and above, 7.32 LTS, and 7.16 for Windows 7/2008 R2 systems. The Falcon sensor for Mac, Linux, and Legacy Systems are not affected.
This vulnerability could expose an arbitrary file write to protected locations from an unprivileged context, potentially leading to local privilege escalation.
The CrowdStrike Laroux Malware Cleanup Tool, based off of the same feature in the CrowdStrike Falcon sensor for Windows, is also affected. An update for this tool is also available immediately.
References
Impacted products
| Vendor | Product | Version |
|---|
{
"affected": [
{
"affectedData": [
{
"defaultStatus": "unknown",
"platforms": [
"Windows"
],
"product": "Falcon sensor for Windows",
"vendor": "CrowdStrike",
"versions": [
{
"lessThan": "8.10.21408",
"status": "affected",
"version": "8.10.0",
"versionType": "semver"
},
{
"lessThan": "7.40.21309",
"status": "affected",
"version": "7.40.0",
"versionType": "semver"
},
{
"lessThan": "7.39.21113",
"status": "affected",
"version": "7.39.0",
"versionType": "semver"
},
{
"lessThan": "7.38.21007",
"status": "affected",
"version": "7.38.0",
"versionType": "semver"
},
{
"lessThan": "7.37.20912",
"status": "affected",
"version": "7.37.0",
"versionType": "semver"
},
{
"lessThan": "7.36.20807",
"status": "affected",
"version": "7.36.0",
"versionType": "semver"
},
{
"lessThan": "7.35.20712",
"status": "affected",
"version": "7.35.0",
"versionType": "semver"
},
{
"lessThan": "7.34.20613",
"status": "affected",
"version": "7.34.0",
"versionType": "semver"
},
{
"status": "affected",
"version": "7.33.0",
"versionType": "semver"
},
{
"lessThan": "7.32.20410",
"status": "affected",
"version": "7.32.0",
"versionType": "semver"
}
]
},
{
"defaultStatus": "unknown",
"platforms": [
"Windows 7",
"Windows Server 2008"
],
"product": "Falcon sensor for Windows",
"vendor": "CrowdStrike",
"versions": [
{
"lessThan": "7.16.18644",
"status": "affected",
"version": "7.16.0",
"versionType": "semver"
}
]
},
{
"defaultStatus": "unknown",
"platforms": [
"Windows"
],
"product": "Laroux Cleanup Tool",
"vendor": "CrowdStrike",
"versions": [
{
"lessThan": "1.4.70.0",
"status": "affected",
"version": "1.0.20",
"versionType": "semver"
}
]
}
],
"source": "13ddcd98-6f4a-40a8-8e24-29ca0aee4661"
}
],
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "CrowdStrike released a security update to address a vulnerability in the Falcon sensor for Windows. The vulnerability only exists when the Microsoft Office File Malicious Macro Removal Windows policy setting is enabled and customers remain protected through the Cloud Anti-malware for Microsoft Office Files settings.\n\n\n\n\nAn update is available immediately for versions 7.34 and above, 7.32 LTS, and 7.16 for Windows 7/2008 R2 systems. The Falcon sensor for Mac, Linux, and Legacy Systems are not affected.\u00a0\n\n\n\n\nThis vulnerability could expose an arbitrary file write to protected locations from an unprivileged context, potentially leading to local privilege escalation.\n\n\n\n\nThe CrowdStrike Laroux Malware Cleanup Tool, based off of the same feature in the CrowdStrike Falcon sensor for Windows, is also affected. An update for this tool is also available immediately."
}
],
"id": "CVE-2026-40058",
"lastModified": "2026-09-15T19:17:18.573",
"metrics": {
"cvssMetricV31": [
{
"cvssData": {
"attackComplexity": "LOW",
"attackVector": "LOCAL",
"availabilityImpact": "HIGH",
"baseScore": 8.8,
"baseSeverity": "HIGH",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "LOW",
"scope": "CHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H",
"version": "3.1"
},
"exploitabilityScore": 2.0,
"impactScore": 6.0,
"source": "13ddcd98-6f4a-40a8-8e24-29ca0aee4661",
"type": "Secondary"
}
],
"ssvcV203": [
{
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"ssvcData": {
"id": "CVE-2026-40058",
"options": [
{
"exploitation": "none"
},
{
"automatable": "no"
},
{
"technicalImpact": "total"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-09-15T18:04:32.076649Z",
"version": "2.0.3"
}
}
]
},
"published": "2026-09-15T18:17:20.913",
"references": [
{
"source": "13ddcd98-6f4a-40a8-8e24-29ca0aee4661",
"url": "https://www.crowdstrike.com/en-us/security-advisories/cve-2026-40058/"
}
],
"sourceIdentifier": "13ddcd98-6f4a-40a8-8e24-29ca0aee4661",
"vulnStatus": "Received",
"weaknesses": [
{
"description": [
{
"lang": "en",
"value": "CWE-367"
}
],
"source": "13ddcd98-6f4a-40a8-8e24-29ca0aee4661",
"type": "Secondary"
}
]
}
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Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
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.
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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
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Related by attack behaviour
Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.
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