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CVE-2026-32202: Microsoft Windows Protection Mechanism Failure Vulnerability

criticalknown exploitedpublic exploitCVE-2026-32202
Actively exploited. At least one CVE in this advisory is listed in the CISA Known Exploited Vulnerabilities catalog — exploitation has been observed in the wild. Treat remediation as urgent.
Microsoft Windows Shell contains a protection mechanism failure vulnerability that allows an unauthorized attacker to perform spoofing over a network.

CSIRTS triage

vendor: Microsoftproduct: Windows ShellOther
What
The vulnerability allows an unauthorized attacker to perform spoofing over a network due to a protection mechanism failure.
Who is affected
Users of Microsoft Windows Shell are affected.
Urgency
Remediation is urgent as the vulnerability is critical and actively exploited.
Action
Install the security update provided by Microsoft.

AI-assisted analysis generated from the source advisory — verify against the original.

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Details

Source
CISA Known Exploited Vulnerabilities (US · database · site)
Severity
critical
Published
2026-04-28
Exploitation
Observed in the wild (CISA KEV)

Original advisory: https://nvd.nist.gov/vuln/detail/CVE-2026-32202

Exploitation outlook

EPSS (FIRST.org) estimates each CVE’s probability of exploitation in the next 30 days — here is the CSIRTS.com read on those numbers.

Referenced CVEs

CVECSIRTS overviewExternal
CVE-2026-32202coverage & exploitation statusNVD · CVE.org

Recent advisories for Microsoft Windows Protection

A cluster of recent advisories against the same product widens the attack surface — attackers routinely chain freshly published CVEs on one product, so review these together.

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