Windows ARM Information Disclosure Vulnerability
Priority MEDIUM 40CWE-203Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Information disclosure
- Confidentiality · integrity · availability
- None · None · High
- Fix status
- Fixed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-203.
Summary
An information disclosure vulnerability exists on ARM implementations that use speculative execution in control flow via a side-channel analysis, aka "straight-line speculation." To exploit this vulnerability, an attacker with local privileges would need to run a specially crafted application. The security update addresses the vulnerability by bypassing the speculative execution.
Why it matters now
EPSS 0.04466 91st percentileScored 2026-11-07
Fix Fixed Windows 10 Version 1809 (Microsoft): publicationWindows 10 Version 1909 (Microsoft): publication+2 more products
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Microsoft | Windows 10 Version 1809 | 10.0.0 to before publication | publication | Patch available | CNA |
| Microsoft | Windows 10 Version 1909 | 10.0.0 to before publication | publication | Patch available | CNA |
| Microsoft | Windows 10 Version 1903 for ARM64-based Systems | 10.0.0 to before publication | publication | Patch available | CNA |
| Microsoft | Windows 10 Version 2004 | 10.0.0 to before publication | publication | Patch available | CNA |
- Windows 10 Version 1809 VendorMicrosoft Affected 10.0.0 to before publication Fixed in publication Patch available CNA
- Windows 10 Version 1909 VendorMicrosoft Affected 10.0.0 to before publication Fixed in publication Patch available CNA
- Windows 10 Version 1903 for ARM64-based Systems VendorMicrosoft Affected 10.0.0 to before publication Fixed in publication Patch available CNA
- Windows 10 Version 2004 VendorMicrosoft Affected 10.0.0 to before publication Fixed in publication Patch available CNA
CPE configurations NVD · 4
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:microsoft:windows_10:1809:*:*:*:*:*:*:* | 1809 | Vulnerable | Microsoft |
| cpe:2.3:o:microsoft:windows_10:1903:*:*:*:*:*:*:* | 1903 | Vulnerable | Microsoft |
| cpe:2.3:o:microsoft:windows_10:1909:*:*:*:*:*:*:* | 1909 | Vulnerable | Microsoft |
| cpe:2.3:o:microsoft:windows_10:2004:*:*:*:*:*:*:* | 2004 | Vulnerable | Microsoft |
- cpe:2.3:o:microsoft:windows_10:1809:*:*:*:*:*:*:* Versions 1809 Vulnerable ·Microsoft
- cpe:2.3:o:microsoft:windows_10:1903:*:*:*:*:*:*:* Versions 1903 Vulnerable ·Microsoft
- cpe:2.3:o:microsoft:windows_10:1909:*:*:*:*:*:*:* Versions 1909 Vulnerable ·Microsoft
- cpe:2.3:o:microsoft:windows_10:2004:*:*:*:*:*:*:* Versions 2004 Vulnerable ·Microsoft
Remediation
- Fix · CNA Windows 10 Version 1809 (Microsoft) Fixed in publication
- Fix · CNA Windows 10 Version 1909 (Microsoft) Fixed in publication
- Fix · CNA Windows 10 Version 1903 for ARM64-based Systems (Microsoft) Fixed in publication
- Fix · CNA Windows 10 Version 2004 (Microsoft) Fixed in publication
Timeline
- 2026-10-02 Threatist record created from CVE-2020-1459
- 2026-10-03 Alias added: GHSA-cjp5-p4x3-x7jg
More Microsoft Windows 10 vulnerabilities
- TI-2015-02132 Buffer underflow in atmfd.dll in the Windows Adobe Type Manager Library in Microsoft… KEVCVSS 3.1HIGH 8.8
- TI-2022-10056 Remote Procedure Call Runtime Remote Code Execution Vulnerability CVSS 3.1CRITICAL 9.8
- TI-2022-06273 HTTP Protocol Stack Remote Code Execution Vulnerability CVSS 3.1CRITICAL 9.8
- TI-2019-00906 Remote Desktop Services Remote Code Execution Vulnerability CVSS 3.1CRITICAL 9.8
- TI-2022-15533 Windows Internet Key Exchange (IKE) Protocol Extensions Remote Code Execution Vulnerability CVSS 3.1CRITICAL 9.8
- TI-2015-01587 Mount Manager in Microsoft Windows Vista SP2, Windows Server 2008 SP2 and R2 SP1, Windows… KEVCVSS 3.1MEDIUM 6.6
Sources
- CVE-2020-1459 · CVE Program
- CVE-2020-1459 · NVD
- FIRST EPSS
- GHSA-cjp5-p4x3-x7jg · GitHub Advisory Database · CC BY 4.0
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