CVE-2026-21224CWE-121

Azure Connected Machine Agent Elevation of Privilege Vulnerability

High · published January 13, 2026

CVSS v3.1
7.8
EPSS
0%
Percentile
23.7
In the wild
Unconfirmed
What it is

⚡ A stack-based buffer overflow in Azure Connected Machine Agent lets an authorized attacker get cozy and elevate their privileges locally! 😱 Think of this vulnerability like a VIP access pass for a concert that allows someone to bypass security checkpoints and access restricted areas backstage — once inside, it’s game over! 🎤 An attacker could gain full control over the system, potentially accessing sensitive data and executing malicious commands without detection. This could lead to a catastrophic compromise of your system integrity and confidentiality!

Put simply

Think of this vulnerability like a VIP access pass for a concert that allows someone to bypass security checkpoints and access restricted areas backstage — once inside, it’s game over! 🎤 This vulnerability allows an authorized attacker to manipulate the stack memory of the Azure Connected Machine Agent, enabling them to execute arbitrary code with elevated privileges. Essentially, it’s a door left ajar for those with a key to slip through and take over operations.

What to do

An attacker could gain full control over the system, potentially accessing sensitive data and executing malicious commands without detection. This could lead to a catastrophic compromise of your system integrity and confidentiality! Ensure that your Azure Connected Machine Agent is updated to the latest version as soon as a patch is released. Regularly audit user permissions to minimize exposure and monitor for any unusual activities that could indicate exploitation attempts. 🛡️ You've got this! With the right steps, you can secure your systems and keep the bad guys at bay! 💪✨

The record
Technical detail
CVSS v3.1
7.8 · HIGH
Vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C
CVSS v4.0
Not supplied
EPSS
0.00320 · 23.7th percentile
Weakness
CWE-121 · Stack-based Buffer Overflow
Published
2026-01-13T17:56Z
EPSS history
Timeline
  • 13 JAN 17:56Z
    Azure Connected Machine Agent Elevation of Privilege Vulnerability
    cvelistv5