CVE-2026-32202
published 2026-04-14CVE-2026-32202: Protection mechanism failure in Windows Shell allows an unauthorized attacker to perform spoofing over a network.
PriorityP276medium4.3CVSS 3.1
AVNACLPRNUIRSUCLINAN
KEVITWEXPLOIT
CISA Known Exploited Vulnerabilitydue 2026-05-12
Exploited in the wild
EPSS
64.09%
99.1th percentile
Protection mechanism failure in Windows Shell allows an unauthorized attacker to perform spoofing over a network.
Affected
29 ranges· showing 25
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| microsoft | windows_10_1607 | < 10.0.14393.9060 | 10.0.14393.9060 |
| microsoft | windows_10_1809 | < 10.0.17763.8644 | 10.0.17763.8644 |
| microsoft | windows_10_21h2 | < 10.0.19044.7184 | 10.0.19044.7184 |
| microsoft | windows_10_22h2 | < 10.0.19045.7184 | 10.0.19045.7184 |
| microsoft | windows_10_version_1607 | >= 10.0.14393.0 < 10.0.14393.9060 | 10.0.14393.9060 |
| microsoft | windows_10_version_1809 | >= 10.0.17763.0 < 10.0.17763.8644 | 10.0.17763.8644 |
| microsoft | windows_10_version_21h2 | >= 10.0.19044.0 < 10.0.19044.7184 | 10.0.19044.7184 |
| microsoft | windows_10_version_22h2 | >= 10.0.19045.0 < 10.0.19045.7184 | 10.0.19045.7184 |
| microsoft | windows_11_23h2 | < 10.0.22631.6936 | 10.0.22631.6936 |
| microsoft | windows_11_24h2 | < 10.0.26100.8246 | 10.0.26100.8246 |
| microsoft | windows_11_25h2 | < 10.0.26200.8246 | 10.0.26200.8246 |
| microsoft | windows_11_26h1 | < 10.0.28000.1836 | 10.0.28000.1836 |
| microsoft | windows_11_version_22h3 | >= 10.0.22631.0 < 10.0.22631.6936 | 10.0.22631.6936 |
| microsoft | windows_11_version_23h2 | >= 10.0.22631.0 < 10.0.22631.6936 | 10.0.22631.6936 |
| microsoft | windows_11_version_24h2 | >= 10.0.26100.0 < 10.0.26100.8246 | 10.0.26100.8246 |
| microsoft | windows_11_version_25h2 | >= 10.0.26200.0 < 10.0.26200.8246 | 10.0.26200.8246 |
| microsoft | windows_11_version_26h1 | >= 10.0.28000.0 < 10.0.28000.1836 | 10.0.28000.1836 |
| microsoft | windows_server_2012 | — | — |
| microsoft | windows_server_2012 | >= 6.2.9200.0 < 6.2.9200.26026 | 6.2.9200.26026 |
| microsoft | windows_server_2012_r2 | >= 6.3.9600.0 < 6.3.9600.23132 | 6.3.9600.23132 |
| microsoft | windows_server_2016 | < 10.0.14393.9060 | 10.0.14393.9060 |
| microsoft | windows_server_2016 | >= 10.0.14393.0 < 10.0.14393.9060 | 10.0.14393.9060 |
| microsoft | windows_server_2019 | < 10.0.17763.8644 | 10.0.17763.8644 |
| microsoft | windows_server_2019 | >= 10.0.17763.0 < 10.0.17763.8644 | 10.0.17763.8644 |
| microsoft | windows_server_2022 | < 10.0.20348.5020 | 10.0.20348.5020 |
Detection & IOCsextracted from sources · hover to see the quote
- →Monitor for Net-NTLMv2 hash capture events on SMB — the vulnerability enables zero-click credential theft via auto-parsed LNK files, usable for NTLM relay attacks and offline cracking. ↗
- →Alert on SMB connections initiated from Windows Shell/File Explorer process (explorer.exe) to non-local UNC paths, particularly when triggered without explicit user file execution. ↗
- →Correlate CVE-2026-32202 exploitation attempts with prior CVE-2026-21510 and CVE-2026-21513 activity — APT28 chained all three in campaigns targeting Ukraine and EU nations starting December 2025. ↗
- ·The February 2026 patch for CVE-2026-21510 only partially mitigated the attack chain — it added a SmartScreen check on CPL digital signature/origin zone but did NOT block the UNC path resolution and SMB connection, leaving the NTLM hash leak vector (CVE-2026-32202) open until the April 2026 Patch Tuesday fix. ↗
- ·CVE-2026-32202 is an incomplete patch bypass of CVE-2026-21510 — defenders who applied the February 2026 patch but not the April 2026 Patch Tuesday update (KB2026-04214) remain vulnerable to NTLM hash capture. ↗
CVSS provenance
nvdv3.14.3MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N
vulncheck4.3MEDIUM
cisa4.3MEDIUM
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GHSA
GHSA-x62h-w968-3v9v: Protection mechanism failure in Windows Shell allows an unauthorized attacker to perform spoofing over a network
ghsa_unreviewed·2026-04-14
CVE-2026-32202 [MEDIUM] CWE-693 GHSA-x62h-w968-3v9v: Protection mechanism failure in Windows Shell allows an unauthorized attacker to perform spoofing over a network
Protection mechanism failure in Windows Shell allows an unauthorized attacker to perform spoofing over a network.
VulDB
Microsoft Windows up to Server 2025 Shell protection mechanism
vuldb·2026-04-14·CVSS 4.3
CVE-2026-32202 [MEDIUM] Microsoft Windows up to Server 2025 Shell protection mechanism
A vulnerability labeled as problematic has been found in Microsoft Windows. This vulnerability affects unknown code of the component Shell. Executing a manipulation can lead to protection mechanism failure.
The identification of this vulnerability is CVE-2026-32202. The attack may be launched remotely. There is no exploit available.
The affected component should be upgraded.
VulnCheck
Microsoft Windows Protection Mechanism Failure
vulncheck·2026·CVSS 4.3
CVE-2026-32202 [MEDIUM] Microsoft Windows Protection Mechanism Failure
Microsoft Windows Protection Mechanism Failure
Protection mechanism failure in Windows Shell allows an unauthorized attacker to perform spoofing over a network.
Affected: Microsoft Windows
Required Action: Apply remediations or mitigations per vendor instructions or discontinue use of the product if remediation or mitigations are unavailable.
Exploitation References: https://api.msrc.microsoft.com/cvrf/v3.0/cvrf/2026-Apr
CISA
Microsoft Windows Protection Mechanism Failure Vulnerability
cisa·2026-04-28·CVSS 4.3
CVE-2026-32202 [MEDIUM] CWE-693 Microsoft Windows Protection Mechanism Failure Vulnerability
Vulnerability: Microsoft Windows Protection Mechanism Failure Vulnerability
Affected: Microsoft Windows
Microsoft Windows Shell contains a protection mechanism failure vulnerability that allows an unauthorized attacker to perform spoofing over a network.
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.
Notes: https://msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2026-32202 ; https://nvd.nist.gov/vuln/detail/CVE-2026-32202
Remediation Due Date: 2026-05-12
No detection rules found.
Hackernews
⚡ Weekly Recap: AI-Powered Phishing, Android Spying Tool, Linux Exploit, GitHub RCE & More
blogs_hackernews·2026-05-04·CVSS 9.3
CVE-2026-41940 [CRITICAL] ⚡ Weekly Recap: AI-Powered Phishing, Android Spying Tool, Linux Exploit, GitHub RCE & More
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## ⚡ Weekly Recap: AI-Powered Phishing, Android Spying Tool, Linux Exploit, GitHub RCE & More
This week, the shadows moved faster than the patches.
While most teams were still triaging last month’s alerts, attackers had already turned control panels into kill switches, kernels into open doors, and open-source pipelines into silent delivery systems.
The game has shifted from breach to occupation. They’re living inside SaaS sessions, pushing code with trusted commits, and scaling operations like legitimate businesses — except their product is chaos. And the underground is getting uncomfortably professional.
Here’s the full week
Sans Isc
TeamPCP Weekly Analysis: 2026-W18 (2026-04-27 through 2026-05-03), (Mon, May 4th)
blogs_sans_isc·2026-05-04
CVE-2024-1708 TeamPCP Weekly Analysis: 2026-W18 (2026-04-27 through 2026-05-03), (Mon, May 4th)
TeamPCP Weekly Analysis: 2026-W18 (2026-04-27 through 2026-05-03)
Published: 2026-05-04. Last Updated: 2026-05-04 17:12:18 UTC
by Kenneth Hartman (Version: 1)
0 comment(s)
Summary
The most significant development of the week was the April 29 to 30 Mini Shai-Hulud worm, a self-propagating supply chain campaign that compromised four official SAP npm packages, two PyTorch Lightning PyPI versions, two intercom-client npm versions, and the intercom-php Packagist package across three package ecosystems. OX Security tracked roughly 1,800 GitHub repositories created with stolen credentials by the worm during the two day campaign, and Wiz attributed the operation to TeamPCP at high confidence based on a shared RSA public key with the prior Bitwarden CLI and Checkmarx KICS operations. Reporting s
Bleepingcomputer
CISA orders feds to patch Windows flaw exploited as zero-day
blogs_bleepingcomputer·2026-04-29·CVSS 4.3
CVE-2026-32202 [MEDIUM] CISA orders feds to patch Windows flaw exploited as zero-day
## CISA orders feds to patch Windows flaw exploited as zero-day
## Sergiu Gatlan
Microsoft says that remote attackers who successfully exploit the CVE-2026-32202 vulnerability in low-complexity attacks by sending "the victim a malicious file that the victim would have to execute," could "view some sensitive information" on unpatched systems.
Akamai further explained in a Thursday report that this security flaw can be exploited in pass-the-hash attacks to steal NTLM hashes (hashed passwords), which are later used to authenticate as the compromised user, allowing attackers to spread laterally across the network or steal sensitive data.
Microsoft also flagged the CVE-2026-3220 flaw as exploited in attacks on Sunday after BleepingComputer reached out last week to ask why the advisory relea
Hackernews
CISA Adds Actively Exploited ConnectWise and Windows Flaws to KEV
blogs_hackernews·2026-04-29·CVSS 8.4
CVE-2024-1708 [HIGH] CISA Adds Actively Exploited ConnectWise and Windows Flaws to KEV
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## CISA Adds Actively Exploited ConnectWise and Windows Flaws to KEV
The U.S. Cybersecurity and Infrastructure Security Agency (CISA) on Tuesday added two security flaws impacting ConnectWise ScreenConnect and Microsoft Windows to its Known Exploited Vulnerabilities ( KEV ) catalog, based on evidence of active exploitation.
The vulnerabilities are listed below -
CVE-2024-1708 (CVSS score: 8.4) - A path traversal vulnerability in ConnectWise ScreenConnect that could allow an attacker to execute remote code or directly impact confidential data and critical systems. (Fixed in February 2024)
CVE-2026-32202 (CVSS score: 4.3) - A p
Hackernews
Microsoft Confirms Active Exploitation of Windows Shell CVE-2026-32202
blogs_hackernews·2026-04-28·CVSS 8.8
CVE-2026-32202 [HIGH] Microsoft Confirms Active Exploitation of Windows Shell CVE-2026-32202
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## Microsoft Confirms Active Exploitation of Windows Shell CVE-2026-32202
Microsoft on Monday revised its advisory for a now-patched, high-severity security flaw impacting Windows Shell to acknowledge that it has been actively exploited in the wild.
The vulnerability in question is CVE-2026-32202 (CVSS score: 4.3), a spoofing vulnerability that could allow an attacker to access sensitive information. It was addressed as part of its Patch Tuesday update for this month.
"Protection mechanism failure in Windows Shell allows an unauthorized attacker to perform spoofing over a network," Microsoft noted in an alert. "An attacker wou
Bleepingcomputer
Microsoft April 2026 Patch Tuesday fixes 167 flaws, 2 zero-days
blogs_bleepingcomputer·2026-04-14·CVSS 6.5
[MEDIUM] Microsoft April 2026 Patch Tuesday fixes 167 flaws, 2 zero-days
## Microsoft April 2026 Patch Tuesday fixes 167 flaws, 2 zero-days
## Lawrence Abrams
Today is Microsoft's April 2026 Patch Tuesday with security updates for 167 flaws, including 2 zero-day vulnerabilities.
This Patch Tuesday also addresses eight "Critical" vulnerabilities, 7 of which are remote code execution flaws and the other is a denial of service flaw.
The number of bugs in each vulnerability category is listed below:
93 Elevation of Privilege Vulnerabilities
13 Security Feature Bypass Vulnerabilities
20 Remote Code Execution Vulnerabilities
21 Information Disclosure Vulnerabilities
10 Denial of Service Vulnerabilities
9 Spoofing Vulnerabilities
When BleepingComputer reports on Patch Tuesday security updates, we only count those released by Microsoft today.
Therefore, the
Talos
Microsoft Patch Tuesday for April 2026 - Snort Rule and Prominent Vulnerabilities
blogs_talos·2026-04-14·CVSS 7.5
CVE-2026-23666 [HIGH] Microsoft Patch Tuesday for April 2026 - Snort Rule and Prominent Vulnerabilities
## Microsoft Patch Tuesday for April 2026 - Snort Rule and Prominent Vulnerabilities
Microsoft has released its monthly security update for April 2026, which includes 165 vulnerabilities affecting a wide range of products, including eight Microsoft marked as “critical.”
CVE-2026-23666 is a critical Denial of Service (DoS) vulnerability that affects the .NET framework. Successful exploitation could allow the attacker to deny service over the network.
CVE-2026-32157 is a critical use after free vulnerability in the Remote Desktop Client that results in code execution. Attack requires an authorized user on the client to connect to a malicious server, which could result in code execution on the client.
CVE-2026-32190 is a critical user after free vulnerability in Microsoft Office that can
Qualys
Microsoft and Adobe Patch Tuesday, April 2026 Security Update Review
blogs_qualys·2026-04-14
Microsoft and Adobe Patch Tuesday, April 2026 Security Update Review
## Table of Contents
Microsoft Patch Tuesday forApril2026
Adobe Patches for April2026
Zero-day Vulnerabilities Patched inAprilPatch Tuesday Edition
Critical Severity Vulnerabilities Patched inAprilPatch Tuesday Edition
Other Microsoft Vulnerability Highlights
Microsoft Release Summary
Qualys Monthly Webinar Series
April 2026’s Patch Tuesday arrives with Microsoft addressing a fresh set of vulnerabilities across its ecosystem, reinforcing the ongoing need for timely patching in an increasingly threat-heavy landscape. Here’s a quick breakdown of what you need to know.
## Microsoft Patch Tuesday for April 2026
This month’s release addresses 163 vulnerabilities, including eight critical and 154 important-severity vulnerabilities.
In this month’s updates, Microsoft has addressed one
Sans Isc
Microsoft Patch Tuesday April 2026., (Tue, Apr 14th)
blogs_sans_isc·2026-04-14·CVSS 8.8
[HIGH] Microsoft Patch Tuesday April 2026., (Tue, Apr 14th)
Microsoft Patch Tuesday April 2026.
Published: 2026-04-14. Last Updated: 2026-04-14 17:46:09 UTC
by Johannes Ullrich (Version: 1)
0 comment(s)
This month's Microsoft Patch Tuesday looks like a record one, but let's look at it a bit closer to understand what is happening
The update patches a total of 243 vulnerabilities. However, 78 of them are Chromium issues affecting Microsoft Edge. Patches for Edge were released earlier. This leaves 165 vulnerabilities that are not Edge-related. Of these, 8 are rated critical, and 154 are important. One vulnerability has already been exploited, and another was made public before today but has not yet been seen in the wild.
Noteworthy Vulnerabilities:
CVE-2026-33827 (Windows TCP/IP Remote Code Execution Vulnerability): As a packet nerd, I love thes
Rapid7
Patch Tuesday - April 2026
blogs_rapid7·2026-04-14·CVSS 6.5
[MEDIUM] Patch Tuesday - April 2026
Microsoft is publishing 167 vulnerabilities on April 2026 Patch Tuesday . Microsoft is aware of exploitation in the wild for one of today’s vulnerabilities, and public disclosure for one other. Microsoft evaluates 19 of the vulnerabilities published today as more likely to see future exploitation. So far this month, Microsoft has provided patches to address 80 browser vulnerabilities, which are not included in the Patch Tuesday count above.
## Increasing volumes of vulnerabilities
Regular Patch Tuesday watchers will know that these vulnerability totals are significantly higher than usual, especially the browser numbers. Late last week, Microsoft published patches to resolve more than 60 browser vulnerabilities in a single day, which is a new record in that very specific category.
It mig
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-32202https://www.vicarius.io/vsociety/posts/cve-2026-32202-detection-script-spoofing-vulnerability-in-windows-shellhttps://www.vicarius.io/vsociety/posts/cve-2026-32202-mitigation-script-spoofing-vulnerability-in-windows-shellhttps://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-32202
2026-04-14
Published
2026-04-28
Added to CISA KEV
Exploited in the wild