CVE-2026-42982: CWE-1288: Improper Validation of Consistency within Input in Microsoft Windows 10 Version 1607
CVE-2026-42982 is a high-severity vulnerability in Microsoft Windows 10 Version 1607 (build 10.0.14393.0) involving improper validation of consistency within input in Windows Secure Kernel Mode. This flaw allows an authorized local attacker to elevate privileges. An official fix is available from Microsoft to address this issue.
AI Analysis
Technical Summary
This vulnerability (CVE-2026-42982) affects Windows 10 Version 1607 (build 10.0.14393.0) and is caused by improper validation of consistency within input processed by the Windows Secure Kernel Mode. Exploiting this flaw enables an authorized local attacker to elevate their privileges, potentially gaining higher system rights. The CVSS 3.1 base score is 7.8, indicating high severity, with attack vector local, low attack complexity, and no user interaction required. Microsoft has published an official fix to remediate this vulnerability.
Potential Impact
Successful exploitation allows an authorized local attacker to elevate privileges, potentially leading to full system compromise with high confidentiality, integrity, and availability impacts as indicated by the CVSS vector. There are no known exploits in the wild at this time.
Mitigation Recommendations
An official fix is available from Microsoft. Users and administrators should apply the security update provided in the Microsoft advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-42982 to remediate this vulnerability.
CVE-2026-42982: CWE-1288: Improper Validation of Consistency within Input in Microsoft Windows 10 Version 1607
Description
CVE-2026-42982 is a high-severity vulnerability in Microsoft Windows 10 Version 1607 (build 10.0.14393.0) involving improper validation of consistency within input in Windows Secure Kernel Mode. This flaw allows an authorized local attacker to elevate privileges. An official fix is available from Microsoft to address this issue.
CVSS v3.1
Score 7.8high
Affected software
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability (CVE-2026-42982) affects Windows 10 Version 1607 (build 10.0.14393.0) and is caused by improper validation of consistency within input processed by the Windows Secure Kernel Mode. Exploiting this flaw enables an authorized local attacker to elevate their privileges, potentially gaining higher system rights. The CVSS 3.1 base score is 7.8, indicating high severity, with attack vector local, low attack complexity, and no user interaction required. Microsoft has published an official fix to remediate this vulnerability.
Potential Impact
Successful exploitation allows an authorized local attacker to elevate privileges, potentially leading to full system compromise with high confidentiality, integrity, and availability impacts as indicated by the CVSS vector. There are no known exploits in the wild at this time.
Mitigation Recommendations
An official fix is available from Microsoft. Users and administrators should apply the security update provided in the Microsoft advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-42982 to remediate this vulnerability.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- microsoft
- Date Reserved
- 2026-04-30T23:43:50.745Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- official-fix
- Vendor Advisory Urls
- [{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-42982","vendor":"Microsoft"}]
Threat ID: 6a566f6768715ace43e6b30e
Added to database: 07/14/2026, 17:18:31 UTC
Last enriched: 07/15/2026, 02:03:58 UTC
Last updated: 07/15/2026, 02:03:58 UTC
Views: 2
Community Reviews
0 reviewsCrowdsource mitigation strategies, share intel context, and vote on the most helpful responses. Sign in to add your voice and help keep defenders ahead.
Want to contribute mitigation steps or threat intel context? Sign in or create an account to join the community discussion.
Actions
Updates to AI analysis require Pro Console access. Upgrade inside Console → Billing.
External Links
Need more coverage?
Upgrade to Pro Console for AI refresh and higher limits.
For incident response and remediation, OffSeq services can help resolve threats faster.
Latest Threats
Check if your credentials are on the dark web
Instant breach scanning across billions of leaked records. Free tier available.