CVE-2026-56194: CWE-122: Heap-based Buffer Overflow in Microsoft Windows 10 Version 1607
Heap-based buffer overflow in Windows Network File System allows an authorized attacker to elevate privileges over a network.
AI Analysis
Technical Summary
This vulnerability (CVE-2026-56194) involves a heap-based buffer overflow in the Windows Network File System on Windows 10 Version 1607 (build 10.0.14393.0). An attacker with authorized network access can exploit this flaw to elevate privileges on the affected system. The vulnerability is classified under CWE-122 (Heap-based Buffer Overflow). Microsoft has published an official fix to remediate this issue.
Potential Impact
Successful exploitation of this vulnerability could allow an authorized attacker to gain elevated privileges on the affected Windows 10 Version 1607 system via network access. This could lead to full system compromise, affecting confidentiality, integrity, and availability.
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-2026-56194 to remediate this vulnerability.
CVE-2026-56194: CWE-122: Heap-based Buffer Overflow in Microsoft Windows 10 Version 1607
Description
Heap-based buffer overflow in Windows Network File System allows an authorized attacker to elevate privileges over a network.
CVSS v3.1
Score 8.8high
Affected software
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability (CVE-2026-56194) involves a heap-based buffer overflow in the Windows Network File System on Windows 10 Version 1607 (build 10.0.14393.0). An attacker with authorized network access can exploit this flaw to elevate privileges on the affected system. The vulnerability is classified under CWE-122 (Heap-based Buffer Overflow). Microsoft has published an official fix to remediate this issue.
Potential Impact
Successful exploitation of this vulnerability could allow an authorized attacker to gain elevated privileges on the affected Windows 10 Version 1607 system via network access. This could lead to full system compromise, affecting confidentiality, integrity, and availability.
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-2026-56194 to remediate this vulnerability.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- microsoft
- Date Reserved
- 2026-06-19T13:54:04.006Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- official-fix
- Vendor Advisory Urls
- [{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-56194","vendor":"Microsoft"}]
Threat ID: 6a5676ba68715ace43f0aeae
Added to database: 07/14/2026, 17:49:46 UTC
Last enriched: 08/13/2026, 15:50:00 UTC
Last updated: 08/26/2026, 22:52:11 UTC
Views: 79
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.