Applied Cybernetics Group Sat, Nov 7, 2026 · data 12:17Z
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Microsoft COM for Windows Deserialization of Untrusted Data Vulnerability

Added to KEV
2024-08-05
Federal due date
2024-08-26
Vendor
Microsoft
Product
Windows
EPSS
99.5th percentile (score 0.730, as of 2026-11-06)
NVD CVSS v3.1
—
Ransomware use
Unknown
Upstream
https://nvd.nist.gov/vuln/detail/CVE-2018-0824

CISA short description

Microsoft COM for Windows contains a deserialization of untrusted data vulnerability that allows for privilege escalation and remote code execution via a specially crafted file or script.

Required action

Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.

EPSS percentile is the FIRST.org exploit-probability ranking as of the date noted above; it moves daily. CVSS reflects NVD's analysis at time of publication.