CVE-2026-45648: CWE-121: Stack-based Buffer Overflow in Microsoft Windows Server 2022
Stack-based buffer overflow in Active Directory Domain Services allows an authorized attacker to execute code over a network.
AI Analysis
Technical Summary
This vulnerability involves a stack-based buffer overflow in Active Directory Domain Services on Windows Server 2022 (version 10.0.20348.0). An attacker with authorized network access can exploit this flaw to execute arbitrary code remotely. The vulnerability is tracked as CWE-121 and has a CVSS v3.1 score of 8.8, indicating high impact on confidentiality, integrity, and availability. Microsoft has published an official fix to address this issue.
Potential Impact
Successful exploitation allows an authorized attacker to execute arbitrary code remotely on the affected Windows Server 2022 system, potentially leading to full system compromise including confidentiality, integrity, and availability impacts.
Mitigation Recommendations
An official fix is available from Microsoft. Users should apply the security update provided in the Microsoft advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-45648 to remediate this vulnerability.
CVE-2026-45648: CWE-121: Stack-based Buffer Overflow in Microsoft Windows Server 2022
Description
Stack-based buffer overflow in Active Directory Domain Services allows an authorized attacker to execute code over a network.
CVSS v3.1
Score 8.8high
Affected software
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 involves a stack-based buffer overflow in Active Directory Domain Services on Windows Server 2022 (version 10.0.20348.0). An attacker with authorized network access can exploit this flaw to execute arbitrary code remotely. The vulnerability is tracked as CWE-121 and has a CVSS v3.1 score of 8.8, indicating high impact on confidentiality, integrity, and availability. Microsoft has published an official fix to address this issue.
Potential Impact
Successful exploitation allows an authorized attacker to execute arbitrary code remotely on the affected Windows Server 2022 system, potentially leading to full system compromise including confidentiality, integrity, and availability impacts.
Mitigation Recommendations
An official fix is available from Microsoft. Users should apply the security update provided in the Microsoft advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-45648 to remediate this vulnerability.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- microsoft
- Date Reserved
- 2026-05-12T20:33:35.157Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- official-fix
- Vendor Advisory Urls
- [{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-45648","vendor":"Microsoft"}]
Threat ID: 6a284ce98dd33fbd85664ef2
Added to database: 06/09/2026, 17:27:05 UTC
Last enriched: 08/14/2026, 13:44:44 UTC
Last updated: 09/13/2026, 22:01:34 UTC
Views: 153
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