CVE-2026-62778: CWE-416: Use After Free in Microsoft Windows 10 Version 1607
Use after free in Windows DNS allows an unauthorized attacker to elevate privileges over a network.
AI Analysis
Technical Summary
This vulnerability (CVE-2026-62778) involves a use-after-free condition in the Windows DNS service on Windows 10 Version 1607 (build 10.0.14393.0). Exploitation could allow an attacker to elevate privileges remotely over a network. The CVSS 3.1 vector indicates network attack vector with high complexity, no privileges required, no user interaction, and impacts confidentiality, integrity, and availability with high severity. Microsoft has released an official fix to remediate this vulnerability.
Potential Impact
Successful exploitation of this vulnerability could allow an unauthorized attacker to elevate privileges on the affected system remotely, potentially leading to full system compromise. The impact affects confidentiality, integrity, and availability at a high level.
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-2026-62778 to remediate this vulnerability.
CVE-2026-62778: CWE-416: Use After Free in Microsoft Windows 10 Version 1607
Description
Use after free in Windows DNS allows an unauthorized attacker to elevate privileges over a network.
CVSS v3.1
Score 8.1high
Affected software
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability (CVE-2026-62778) involves a use-after-free condition in the Windows DNS service on Windows 10 Version 1607 (build 10.0.14393.0). Exploitation could allow an attacker to elevate privileges remotely over a network. The CVSS 3.1 vector indicates network attack vector with high complexity, no privileges required, no user interaction, and impacts confidentiality, integrity, and availability with high severity. Microsoft has released an official fix to remediate this vulnerability.
Potential Impact
Successful exploitation of this vulnerability could allow an unauthorized attacker to elevate privileges on the affected system remotely, potentially leading to full system compromise. The impact affects confidentiality, integrity, and availability at a high level.
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-2026-62778 to remediate this vulnerability.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- microsoft
- Date Reserved
- 2026-07-14T21:04:04.256Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- official-fix
- Vendor Advisory Urls
- [{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-62778","vendor":"Microsoft"}]
Threat ID: 6a7b5816bf8831d539155f10
Added to database: 08/11/2026, 17:12:54 UTC
Last enriched: 08/11/2026, 21:43:02 UTC
Last updated: 08/12/2026, 03:21:14 UTC
Views: 3
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