CVE-2026-32202mediumunder attackCWE-693

CVE-2026-32202: medium-severity vulnerability in Microsoft Windows 10 Version 1607

Windows Shell Spoofing Vulnerability

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85Vexday Risk Score

Prioritize patching. It under exploitation confirmed by CISA, has an official Brazilian government alert and has a public proof of concept.

ssvc Actcvss 4.3epss 71%
from disclosure to weapon16 days
Published on NVDApr 14
1st PoC+16d
CISA KEV+14d
Official alert in Brazil

Brazil's federal government published an alert, recommendation or bulletin that cites this vulnerability.

Source: CTIR Gov (GSI) and CISC Gov.br, under the CC BY-ND 3.0 license.
Action required by CISAfederal deadline: 2026-05-12

Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.

In short

Windows Shell has a flaw that lets attackers trick users by pretending to be legitimate programs or sources over the network. This matters because users could be deceived into running harmful code thinking it's safe.

Technical detail

CWE-693 identifies a failure in Windows Shell's protection mechanism that permits network-based spoofing attacks. The vulnerability allows an unauthenticated remote attacker to impersonate legitimate shell operations or sources, potentially leading to social engineering or code execution via deceptive presentation.

Summary generated and translated by AI from the official description.

The full analysis of this CVE is available in Portuguese →

Protection mechanism failure in Windows Shell allows an unauthorized attacker to perform spoofing over a network.
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N/E:F/RL:O/RC:C
Affected products
Microsoft · Windows 10 Version 1607Microsoft · Windows 10 Version 1809Microsoft · Windows 10 Version 21H2Microsoft · Windows 10 Version 22H2Microsoft · Windows 11 version 23H2Microsoft · Windows 11 Version 24H2Microsoft · Windows 11 Version 25H2Microsoft · Windows 11 version 26H1Microsoft · Windows Server 2012Microsoft · Windows Server 2012 R2Microsoft · Windows Server 2012 R2 (Server Core installation)Microsoft · Windows Server 2012 (Server Core installation)Microsoft · Windows Server 2016Microsoft · Windows Server 2016 (Server Core installation)Microsoft · Windows Server 2019Microsoft · Windows Server 2019 (Server Core installation)Microsoft · Windows Server 2022Microsoft · Windows Server 2025Microsoft · Windows Server 2025 (Server Core installation)
⚠ Public resources, to assess the exposure of systems you control or are authorized to test. Test only with authorization.
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