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
CVE-2026-54993 is a heap-based buffer overflow vulnerability in Microsoft Windows Media Foundation affecting Windows 10 Version 1809 (build 10.0.17763.0). The vulnerability allows a local attacker to execute arbitrary code, potentially leading to full system compromise. The vulnerability has a CVSS v3.1 base score of 7.8, indicating high severity. Microsoft has released an official fix to address this issue as documented in their security update guide.
Potential Impact
Successful exploitation of this vulnerability could allow an attacker to execute arbitrary code locally, resulting in complete compromise of confidentiality, integrity, and availability of the affected system. This could lead to unauthorized control over the system and disruption of normal operations.
Mitigation Recommendations
An official fix is available from Microsoft. Users and administrators should apply the security update provided by Microsoft for Windows 10 Version 1809 (build 10.0.17763.0) as soon as possible to remediate this vulnerability. Refer to the Microsoft advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-54993 for detailed update instructions.
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
CVE-2026-54993 is a heap-based buffer overflow vulnerability in Microsoft Windows Media Foundation affecting Windows 10 Version 1809 (build 10.0.17763.0). The vulnerability allows a local attacker to execute arbitrary code, potentially leading to full system compromise. The vulnerability has a CVSS v3.1 base score of 7.8, indicating high severity. Microsoft has released an official fix to address this issue as documented in their security update guide.
Potential Impact
Successful exploitation of this vulnerability could allow an attacker to execute arbitrary code locally, resulting in complete compromise of confidentiality, integrity, and availability of the affected system. This could lead to unauthorized control over the system and disruption of normal operations.
Mitigation Recommendations
An official fix is available from Microsoft. Users and administrators should apply the security update provided by Microsoft for Windows 10 Version 1809 (build 10.0.17763.0) as soon as possible to remediate this vulnerability. Refer to the Microsoft advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-54993 for detailed update instructions.
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: 07/14/2026, 17:50:51 UTC
Last updated: 07/14/2026, 20:03:47 UTC
Views: 2
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