CVE-2026-32225: Windows Shell Security Feature Bypass Vulnerability
CVE-2026-32225 is a security feature bypass vulnerability in Windows Shell, rated Important by Microsoft, with a CVSS 3.1 base score of 8.8 (High). An attacker can exploit it remotely over the network, without any privileges and only if a user takes an action. Microsoft has not reported exploitation in the wild and rates exploitation as more likely. The EPSS model estimates a 1.20% probability of exploitation activity in the next 30 days, higher than 68% of all scored vulnerabilities. Microsoft released the fix on 14 April 2026 in the April 2026 Patch Tuesday, delivered through 11 security updates (KB5082123, KB5082142, KB5082200, KB5082063 and more). It affects 31 products in 2 product families (Windows, ESU).
Key facts
- CVE ID
- CVE-2026-32225
- Severity
- High CVSS 8.8
- Microsoft severity
- Important
- Impact
- Security Feature Bypass
- Exploited in the wild
- No
- Publicly disclosed
- No
- Exploitation likelihood
- More Likely
- Weakness
- CWE-693
- EPSS
- 1.20% (percentile 68%)
- CISA KEV
- Not listed
- Released
- Last updated
- Patch Tuesday
- April 2026 Patch Tuesday
- Product families
- Windows, ESU
CVSS score and vector
Microsoft scores CVE-2026-32225 at 8.8 (temporal 7.7) using CVSS 3.1. Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C
| Metric | Value |
|---|---|
| Attack vector | Network |
| Attack complexity | Low |
| Privileges required | None |
| User interaction | Required |
| Scope | Unchanged |
| Confidentiality impact | High |
| Integrity impact | High |
| Availability impact | High |
| Exploit code maturity | Unproven |
| Remediation level | Official fix |
| Report confidence | Confirmed |
Description
Improper neutralization of special elements used in a command ('command injection') in Windows Shell allows an unauthorized attacker to bypass a security feature over a network.
Frequently asked questions (Microsoft)
What kind of security feature could be bypassed by successfully exploiting this vulnerability?
This vulnerability could allow an attacker to bypass SmartScreen protections that rely on the Mark of the Web (MotW) to identify files originating from the internet.
How could an attacker exploit this vulnerability?
An attacker could exploit this issue by convincing a user to open a specially crafted .lnk file delivered through email, a website download, or removable media. When opened, the shortcut causes Windows to launch commands or Control Panel applets without proper MotW handling, potentially allowing arbitrary command execution or loading attacker‑controlled DLLs.
According to the CVSS metric, user interaction is required (UI:R). What interaction would the user have to do?
To successfully exploit this vulnerability, an attacker must convince a user to open a malicious link or shortcut file.
Affected products (31)
Windows
| Product | Security update | Type | Fixed build | Restart |
|---|---|---|---|---|
| Windows 10 Version 1809 for 32-bit Systems | KB5082123 | Security Update | 10.0.17763.8644 | Yes |
| Windows 10 Version 1809 for x64-based Systems | KB5082123 | Security Update | 10.0.17763.8644 | Yes |
| Windows Server 2019 | KB5082123 | Security Update | 10.0.17763.8644 | Yes |
| Windows Server 2019 (Server Core installation) | KB5082123 | Security Update | 10.0.17763.8644 | Yes |
| Windows Server 2022 | KB5082142 | Security Update | 10.0.20348.5020 | Yes |
| Windows Server 2022 (Server Core installation) | KB5082142 | Security Update | 10.0.20348.5020 | Yes |
| Windows 10 Version 21H2 for 32-bit Systems | KB5082200 | Security Update | 10.0.19044.7184 | Yes |
| Windows 10 Version 21H2 for ARM64-based Systems | KB5082200 | Security Update | 10.0.19044.7184 | Yes |
| Windows 10 Version 21H2 for x64-based Systems | KB5082200 | Security Update | 10.0.19044.7184 | Yes |
| Windows Server 2025 (Server Core installation) | KB5082063 | Security Update | 10.0.26100.32690 | Yes |
| Windows 11 Version 25H2 for ARM64-based Systems | KB5083769 | Security Update | 10.0.26200.8246 | Yes |
| Windows 11 Version 25H2 for x64-based Systems | KB5083769 | Security Update | 10.0.26200.8246 | Yes |
| Windows 11 Version 23H2 for ARM64-based Systems | KB5082052 | Security Update | 10.0.22631.6936 | Yes |
| Windows 11 Version 23H2 for x64-based Systems | KB5082052 | Security Update | 10.0.22631.6936 | Yes |
| Windows Server 2022, 23H2 Edition (Server Core installation) | KB5082060 | Security Update | 10.0.25398.2274 | Yes |
| Windows 11 Version 24H2 for ARM64-based Systems | ||||
| Windows 11 Version 24H2 for x64-based Systems | ||||
| Windows Server 2025 | KB5082063 | Security Update | 10.0.26100.32690 | Yes |
| Windows 10 Version 1607 for 32-bit Systems | KB5082198 | Security Update | 10.0.14393.9060 | Yes |
| Windows 10 Version 1607 for x64-based Systems | KB5082198 | Security Update | 10.0.14393.9060 | Yes |
| Windows Server 2016 | KB5082198 | Security Update | 10.0.14393.9060 | Yes |
| Windows Server 2016 (Server Core installation) | KB5082198 | Security Update | 10.0.14393.9060 | Yes |
| Windows 11 Version 26H1 for ARM64-based Systems | KB5083768 | Security Update | 10.0.28000.1836 | Yes |
| Windows 11 version 26H1 for x64-based Systems | KB5083768 | Security Update | 10.0.28000.1836 | Yes |
ESU
| Product | Security update | Type | Fixed build | Restart |
|---|---|---|---|---|
| Windows 10 Version 22H2 for x64-based Systems | ||||
| Windows 10 Version 22H2 for ARM64-based Systems | ||||
| Windows 10 Version 22H2 for 32-bit Systems | ||||
| Windows Server 2012 | KB5082127 | Monthly Rollup | 6.2.9200.26026 | Yes |
| Windows Server 2012 (Server Core installation) | KB5082127 | Monthly Rollup | 6.2.9200.26026 | Yes |
| Windows Server 2012 R2 | KB5082126 | Monthly Rollup | 6.3.9600.23132 | Yes |
| Windows Server 2012 R2 (Server Core installation) | KB5082126 | Monthly Rollup | 6.3.9600.23132 | Yes |
Security updates (11)
NIST NVD data
- NVD status
- Analyzed
- NVD CVSS
- 8.8 (HIGH)
- NVD weakness
- CWE-693
- Published to NVD
- NVD last modified
Affected configurations (CPE)
| Product | Vulnerable versions |
|---|---|
| windows 10 1607 (x64) | before 10.0.14393.9060 |
| windows 10 1607 (x86) | before 10.0.14393.9060 |
| windows 10 1809 (x64) | before 10.0.17763.8644 |
| windows 10 1809 (x86) | before 10.0.17763.8644 |
| windows 10 21h2 (arm64) | before 10.0.19044.7184 |
| windows 10 21h2 (x64) | before 10.0.19044.7184 |
| windows 10 21h2 (x86) | before 10.0.19044.7184 |
| windows 10 22h2 (arm64) | before 10.0.19045.7184 |
| windows 10 22h2 (x64) | before 10.0.19045.7184 |
| windows 10 22h2 (x86) | before 10.0.19045.7184 |
| windows 11 23h2 (arm64) | before 10.0.22631.6936 |
| windows 11 23h2 (x64) | before 10.0.22631.6936 |
| windows 11 24h2 (arm64) | before 10.0.26100.8246 |
| windows 11 24h2 (x64) | before 10.0.26100.8246 |
| windows 11 25h2 (arm64) | before 10.0.26200.8246 |
| windows 11 25h2 (x64) | before 10.0.26200.8246 |
| windows 11 26h1 (arm64) | before 10.0.28000.1836 |
| windows 11 26h1 (x64) | before 10.0.28000.1836 |
| windows server 2012 | all listed versions |
| windows server 2012 r2 | all listed versions |
| windows server 2016 | before 10.0.14393.9060 |
| windows server 2019 | before 10.0.17763.8644 |
| windows server 2022 | before 10.0.20348.5020 |
| windows server 2022 23h2 | before 10.0.25398.2274 |
| windows server 2025 | before 10.0.26100.32690 |
References
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-32225 (Vendor Advisory)
Acknowledgments
Revision history
| Version | Date | Description |
|---|---|---|
| 1.0 | Information published. |