Known exploited vulnerability
CVE-2026-32202
The short answer
CVE-2026-32202 affects Microsoft Windows 10 Version 1607 and is rated medium (CVSS 4.3). CISA added it to the Known Exploited Vulnerabilities catalog on 2026-04-28: attackers are using it, so patch it first.
What it is
Protection mechanism failure in Windows Shell allows an unauthorized attacker to perform spoofing over a network.
Weakness: CWE-693.
Severity
4.3 medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N
Exploited (CISA KEV)
Yes, since Apr 28, 2026
Federal due date May 12, 2026
EPSS, next 30 days
71%
Higher than 99% of scored CVEs
How it can be exploited
- Attack vector
- Network
- Attack complexity
- Low
- Privileges required
- None
- User interaction
- Required
- Scope
- Unchanged
- Confidentiality impact
- Low
- Integrity impact
- None
- Availability impact
- None
What CISA says to do
Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
Affected products
Windows 10 Version 1607, Windows 10 Version 1809, Windows 10 Version 21H2, Windows 10 Version 22H2, Windows 11 version 23H2, Windows 11 Version 23H2, Windows 11 Version 24H2, Windows 11 Version 25H2, Windows 11 version 26H1, Windows Server 2012, Windows Server 2012 (Server Core installation), Windows Server 2012 R2. NVD's record lists the exact affected versions.
References
- msrc.microsoft.com/update-guide/vulnerability/CVE-2026-32202 Vendor Advisory
- www.vicarius.io/vsociety/posts/cve-2026-32202-detection-script-spoofing-vulnerability-in-windows-shell Third Party Advisory
- www.vicarius.io/vsociety/posts/cve-2026-32202-mitigation-script-spoofing-vulnerability-in-windows-shell MitigationThird Party Advisory
- www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-32202 Third Party AdvisoryUS Government Resource
Questions
Is CVE-2026-32202 being exploited?
Yes. CISA added CVE-2026-32202 to its Known Exploited Vulnerabilities catalog on 2026-04-28, with a federal remediation due date of 2026-05-12.
How do I fix CVE-2026-32202?
CISA's required action: Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
From NVD, CISA KEV, FIRST EPSS and OSV.dev, checked . Status on NVD: Analyzed. The description is NVD's text, quoted as published.
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