CVE-2026-50499: CWE-122: Heap-based Buffer Overflow in Microsoft Windows 10 Version 1809
Heap-based buffer overflow in Windows Print Spooler Components allows an authorized attacker to elevate privileges locally.
AI Analysis
Technical Summary
This vulnerability (CVE-2026-50499) involves a heap-based buffer overflow in the Windows Print Spooler components on Windows 10 Version 1809 (build 10.0.17763.0). An attacker with local authorized access can exploit this flaw to elevate their privileges, potentially gaining higher-level access than intended. The vulnerability has been assigned a CVSS v3.1 score of 7.8, indicating high severity. Microsoft has published an official fix to remediate this issue, as detailed in their security update guide.
Potential Impact
Successful exploitation of this vulnerability allows an authorized local attacker to elevate privileges, potentially leading to full system compromise or unauthorized administrative access. The impact includes confidentiality, integrity, and availability being rated as high according to the CVSS vector.
Mitigation Recommendations
An official fix is available from Microsoft. It is recommended to apply the security update provided in the Microsoft advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-50499 to remediate this vulnerability. No additional mitigation steps are indicated beyond applying the official patch.
CVE-2026-50499: CWE-122: Heap-based Buffer Overflow in Microsoft Windows 10 Version 1809
Description
Heap-based buffer overflow in Windows Print Spooler Components allows an authorized attacker to elevate privileges locally.
CVSS v3.1
Score 7.8high
Affected software
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability (CVE-2026-50499) involves a heap-based buffer overflow in the Windows Print Spooler components on Windows 10 Version 1809 (build 10.0.17763.0). An attacker with local authorized access can exploit this flaw to elevate their privileges, potentially gaining higher-level access than intended. The vulnerability has been assigned a CVSS v3.1 score of 7.8, indicating high severity. Microsoft has published an official fix to remediate this issue, as detailed in their security update guide.
Potential Impact
Successful exploitation of this vulnerability allows an authorized local attacker to elevate privileges, potentially leading to full system compromise or unauthorized administrative access. The impact includes confidentiality, integrity, and availability being rated as high according to the CVSS vector.
Mitigation Recommendations
An official fix is available from Microsoft. It is recommended to apply the security update provided in the Microsoft advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-50499 to remediate this vulnerability. No additional mitigation steps are indicated beyond applying the official patch.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- microsoft
- Date Reserved
- 2026-06-04T18:59:53.337Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- official-fix
- Vendor Advisory Urls
- [{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-50499","vendor":"Microsoft"}]
Threat ID: 6a5676a768715ace43f09671
Added to database: 07/14/2026, 17:49:27 UTC
Last enriched: 08/13/2026, 15:05:18 UTC
Last updated: 08/27/2026, 03:14:51 UTC
Views: 51
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