CVE-2026-21224 is a high-severity stack-based buffer overflow vulnerability in the Microsoft Azure Connected Machine Agent that allows an authenticated local attacker to achieve privilege escalation. With a CVSS score of 7.8, exploitation is low complexity and could lead to high impact on confidentiality, integrity, and availability. While there is no known active exploitation or public exploit code (Metasploit, Nuclei, ExploitDB), the vulnerability has garnered significant community discussion and media coverage, indicating awareness and potential for future exploitation. It is not currently listed in CISA's KEV catalog.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
>= 1.0.0, < 1.60.03293.2680CPE match | cpe:2.3:a:microsoft:azure_connected_machine_agent:*:*:*:*:*:*:*:* | ||
< 1.60CPE matchmatch criteria | cpe:2.3:a:microsoft:azure_connected_machine_agent:*:*:*:*:*:*:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.2 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.
The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.