SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityReceived

CVE-2026-40058

CrowdStrike released a security update to address a vulnerability in the Falcon sensor for Windows.

HIGH 8.8EPSS 0.08%

Does this matter?

High impact if exploited, but EPSS currently rates exploitation as unlikely (0.08%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.

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.

CVSS 3.1
8.8 HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
EPSS
0.08% probability · 0th percentile
CISA KEV
Not listed
Weakness
CWE-367
Source
13ddcd98-6f4a-40a8-8e24-29ca0aee4661

Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.