Strix
64.8K

CVE-2026-40058

HIGHCVSS 8.8/10EPSS 0.08%

Last modified

CVE-2026-40058 is a high-severity vulnerability rated 8.8/10 on the CVSS scale. 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. EPSS estimates a 0.08% chance of exploitation in the next 30 days.

Description

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.

Metrics

CVSS 3.1
8.8/10

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

EPSS Probability
0.08%

0.3th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Source: CNA advisory (CVE.org). NVD analysis pending.

VendorProductVersions
CrowdStrikeFalcon sensor for Windows>= 8.10.0, < 8.10.21408; >= 7.40.0, < 7.40.21309; >= 7.39.0, < 7.39.21113; >= 7.38.0, < 7.38.21007; >= 7.37.0, < 7.37.20912; >= 7.36.0, < 7.36.20807; >= 7.35.0, < 7.35.20712; >= 7.34.0, < 7.34.20613; 7.33.0; >= 7.32.0, < 7.32.20410
CrowdStrikeFalcon sensor for Windows>= 7.16.0, < 7.16.18644
CrowdStrikeLaroux Cleanup Tool>= 1.0.20, < 1.4.70.0

References

Timeline

Published
Last Modified
Status
Awaiting Analysis

Frequently Asked Questions

What is CVE-2026-40058?
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.
How severe is CVE-2026-40058?
CVE-2026-40058 has a CVSS score of 8.8/10 (HIGH severity). The EPSS model estimates a 0.08% probability of exploitation in the next 30 days.
How do I fix CVE-2026-40058?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

How Strix Helps

Related CVEs from 2026

View all 2026CVEs →

Are you affected by CVE-2026-40058?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST