CVE-2026-21224: CWE-121: Stack-based Buffer Overflow in Microsoft Azure Connected Machine Agent
Stack-based buffer overflow in Azure Connected Machine Agent allows an authorized attacker to elevate privileges locally.
AI Analysis
Technical Summary
This vulnerability is a stack-based buffer overflow (CWE-121) in Microsoft Azure Connected Machine Agent version 1.0.0. It enables an attacker with local authorized access to escalate privileges on the affected system. The CVSS 3.1 vector (AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H) reflects that the attack requires local access with low complexity and privileges but results in high impact on confidentiality, integrity, and availability. The vulnerability is officially published and a patch is available from Microsoft.
Potential Impact
Successful exploitation allows an authorized local attacker to elevate privileges, potentially gaining higher-level access and control over the affected system. This can lead to full compromise of the system's confidentiality, integrity, and availability.
Mitigation Recommendations
A patch is available for this vulnerability. It is recommended to apply the official Microsoft update for Azure Connected Machine Agent version 1.0.0 promptly to remediate this issue. No additional mitigation guidance is provided or required beyond applying the patch.
CVE-2026-21224: CWE-121: Stack-based Buffer Overflow in Microsoft Azure Connected Machine Agent
Description
Stack-based buffer overflow in Azure Connected Machine Agent allows an authorized attacker to elevate privileges locally.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability is a stack-based buffer overflow (CWE-121) in Microsoft Azure Connected Machine Agent version 1.0.0. It enables an attacker with local authorized access to escalate privileges on the affected system. The CVSS 3.1 vector (AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H) reflects that the attack requires local access with low complexity and privileges but results in high impact on confidentiality, integrity, and availability. The vulnerability is officially published and a patch is available from Microsoft.
Potential Impact
Successful exploitation allows an authorized local attacker to elevate privileges, potentially gaining higher-level access and control over the affected system. This can lead to full compromise of the system's confidentiality, integrity, and availability.
Mitigation Recommendations
A patch is available for this vulnerability. It is recommended to apply the official Microsoft update for Azure Connected Machine Agent version 1.0.0 promptly to remediate this issue. No additional mitigation guidance is provided or required beyond applying the patch.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- microsoft
- Date Reserved
- 2025-12-11T21:02:05.732Z
- Cvss Version
- 3.1
- State
- PUBLISHED
Threat ID: 69668ae6a60475309f9ae27a
Added to database: 1/13/2026, 6:11:50 PM
Last enriched: 4/3/2026, 12:53:55 PM
Last updated: 5/10/2026, 9:43:20 AM
Views: 133
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