CVE-2026-40058 CrowdStrike Falcon - Local Privilege Escalation

CrowdStrike Falcon sensor for Windows (versions 7.34+, 7.32 LTS, 7.16 on Windows 7/2008 R2) contains an arbitrary file write vulnerability caused by Microsoft Office File Malicious Macro Removal policy enabled, letting unprivileged attackers escalate privileges locally, exploit requires the specific Windows policy enabled.

CVSS base score 8.8 /10
High
CISA KEV
Not listed
Public exploit
None known
Authentication
Required
EPSS
0.08% chance of exploitation in 30 days
View the NVD record ↗

Details

Type
Local Privilege Escalation
Impact
File System Write, Privilege Escalation
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
Published
15 September 2026
Updated
15 October 2026
Weakness
CWE-367

Vendor fix

Update to the latest versions 7.34 and above, 7.32 LTS, or 7.16 for Windows 7/2008 R2 systems.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

References

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