CVE-2026-54993: CWE-122: Heap-based Buffer Overflow in Microsoft Windows 10 Version 1809
Heap-based buffer overflow in Microsoft Windows Media Foundation allows an unauthorized attacker to execute code locally.
AI Analysis
Technical Summary
This vulnerability (CVE-2026-54993) involves a heap-based buffer overflow in the Windows Media Foundation component of Microsoft Windows 10 Version 1809 (build 10.0.17763.0). The flaw allows an attacker to execute arbitrary code locally, potentially leading to full system compromise. The vulnerability has a CVSS 3.1 base score of 7.8, indicating high severity. Microsoft has released an official patch to address this issue.
Potential Impact
Successful exploitation of this vulnerability allows an unauthorized local attacker to execute arbitrary code, resulting in complete compromise of confidentiality, integrity, and availability of the affected system. This can lead to full control over the vulnerable Windows 10 Version 1809 device.
Mitigation Recommendations
Microsoft has released an official fix for this vulnerability. Users and administrators should apply the available security update from the Microsoft Security Response Center to remediate this issue. No additional mitigation steps are indicated by the vendor advisory.
CVE-2026-54993: CWE-122: Heap-based Buffer Overflow in Microsoft Windows 10 Version 1809
Description
Heap-based buffer overflow in Microsoft Windows Media Foundation allows an unauthorized attacker to execute code locally.
CVSS v3.1
Score 7.8high
Affected software
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability (CVE-2026-54993) involves a heap-based buffer overflow in the Windows Media Foundation component of Microsoft Windows 10 Version 1809 (build 10.0.17763.0). The flaw allows an attacker to execute arbitrary code locally, potentially leading to full system compromise. The vulnerability has a CVSS 3.1 base score of 7.8, indicating high severity. Microsoft has released an official patch to address this issue.
Potential Impact
Successful exploitation of this vulnerability allows an unauthorized local attacker to execute arbitrary code, resulting in complete compromise of confidentiality, integrity, and availability of the affected system. This can lead to full control over the vulnerable Windows 10 Version 1809 device.
Mitigation Recommendations
Microsoft has released an official fix for this vulnerability. Users and administrators should apply the available security update from the Microsoft Security Response Center to remediate this issue. No additional mitigation steps are indicated by the vendor advisory.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- microsoft
- Date Reserved
- 2026-06-16T14:10:05.869Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- official-fix
- Vendor Advisory Urls
- [{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-54993","vendor":"Microsoft"}]
Threat ID: 6a566f7e68715ace43e6bc1f
Added to database: 07/14/2026, 17:18:54 UTC
Last enriched: 08/13/2026, 15:25:39 UTC
Last updated: 08/27/2026, 22:52:12 UTC
Views: 43
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