CVE-2026-72986: CWE-122: Heap-based Buffer Overflow in Microsoft Windows 10 Version 1607
Description
Heap-based buffer overflow in Graphic Fonts allows an unauthorized attacker to execute code over a network.
CVSS v3.1
Score 8.8high
Affected software
Microsoft
Windows 10 Version 1607
Microsoft
Windows 10 Version 1809
Microsoft
Windows 10 Version 21H2
Microsoft
Windows 10 Version 22H2
Microsoft
Windows 11 version 23H2
Microsoft
Windows 11 Version 23H2
Microsoft
Windows 11 Version 24H2
Microsoft
Windows 11 Version 25H2
Microsoft
Windows 11 version 26H1
Microsoft
Windows Server 2012
Microsoft
Windows Server 2012 (Server Core installation)
Microsoft
Windows Server 2012 R2
Microsoft
Windows Server 2012 R2 (Server Core installation)
Microsoft
Windows Server 2016
Microsoft
Windows Server 2016 (Server Core installation)
Microsoft
Windows Server 2019
Microsoft
Windows Server 2019 (Server Core installation)
Microsoft
Windows Server 2022
Microsoft
Windows Server 2025
Microsoft
Windows Server 2025 (Server Core installation)
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability (CVE-2026-72986) involves a heap-based buffer overflow in the Graphic Fonts component of Microsoft Windows 10, affecting multiple specific builds starting from version 10.0.14393.0 up to but not including various patch levels. An attacker can exploit this flaw remotely without privileges and with user interaction to execute arbitrary code, impacting confidentiality, integrity, and availability. The vulnerability is tracked under CWE-122 and has an official fix available from Microsoft.
Potential Impact
Successful exploitation allows remote code execution with high impact on confidentiality, integrity, and availability of the affected system. The attacker does not require privileges but does require user interaction. This can lead to complete system compromise.
Mitigation Recommendations
Microsoft has released official patches addressing this vulnerability. Users and administrators should apply the latest security updates as detailed in the Microsoft advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-72986 to remediate this issue.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- microsoft
- Date Reserved
- 2026-08-10T18:38:17.057Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- official-fix
- Vendor Advisory Urls
- [{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-72986","vendor":"Microsoft"}]
Threat ID: 6aa0454bacd9273b49fa9d7d
Added to database: 09/08/2026, 17:26:35 UTC
Last enriched: 10/14/2026, 21:51:48 UTC
Last updated: 10/24/2026, 03:05:10 UTC
Views: 28
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.