CVE-2026-32202
medium CISA KEVMicrosoft Windows Protection Mechanism Failure Vulnerability
Vendor / product: Microsoft — Windows
Protection mechanism failure in Windows Shell allows an unauthorized attacker to perform spoofing over a network.
CVSS
4.3
4.3 (CVSS v3.1)
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N Severity source: NVD CVSS v3.1 (secure@microsoft.com)
Timeline (UTC)
Published: 2026-04-14 18:17
Modified: 2026-10-26 21:10
NVD status: Analyzed
Last synced 2 days ago
Verified against the source API 2026-10-27 07:07 UTC
Exploitation
Listed in CISA KEV
Added 2026-04-28 · due 2026-05-12
Known ransomware use: Unknown
Required action (CISA)
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
microsoft / windows_10_1607 <10.0.14393.9060
microsoft / windows_10_1809 <10.0.17763.8644
microsoft / windows_10_21h2 <10.0.19044.7184
microsoft / windows_10_22h2 <10.0.19045.7184
microsoft / windows_11_23h2 <10.0.22631.6936
microsoft / windows_11_24h2 <10.0.26100.8246
microsoft / windows_11_25h2 <10.0.26200.8246
microsoft / windows_11_26h1 <10.0.28000.1836
microsoft / windows_server_2012 all versions, r2
microsoft / windows_server_2016 <10.0.14393.9060
microsoft / windows_server_2019 <10.0.17763.8644
microsoft / windows_server_2022 <10.0.20348.5020
microsoft / windows_server_2022_23h2 <10.0.25398.2274
microsoft / windows_server_2025 <10.0.26100.32690
Weakness classification (CWE)
Source: NVD / CISA. “NVD-CWE-Other” and “NVD-CWE-noinfo” mean NVD could not assign a specific weakness.
Mitigation & advisories
Vendor advisory: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-32202
References
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-32202 secure@microsoft.com
- https://www.vicarius.io/vsociety/posts/cve-2026-32202-detection-script-spoofing-vulnerabil... af854a3a-2127-422b-91ae-364da2661108
- https://www.vicarius.io/vsociety/posts/cve-2026-32202-mitigation-script-spoofing-vulnerabi... af854a3a-2127-422b-91ae-364da2661108
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-32202 134c704f-9b21-4f2e-91b3-4a467353bcc0
Data sources
CISA KEV — fetched 2026-10-27 06:50 UTC · record ↗
NVD CVE API 2.0 — fetched 2026-10-27 07:07 UTC · record ↗