CVE-2025-49752CWE-294

CVE-2025-49752

Critical · published November 21, 2025

CVSS v3.1
10.0
EPSS
1%
Percentile
59.7
In the wild
Unconfirmed
What it is

🚨 One wrong move in Azure Bastion can give an attacker the keys to the kingdom! This elevation of privilege vulnerability could allow unauthorized users to gain admin access with a crafty maneuver. 🔥 Think of Azure Bastion like a secure hotel lobby where a guest suddenly finds a way to access the staff-only areas. If someone slips through unnoticed, they could cause chaos in areas meant for authorized personnel only. An attacker could exploit this vulnerability to escalate their privileges, gaining access to sensitive resources and potentially wreaking havoc on your cloud environment. Imagine a malicious actor changing configurations, stealing data, or even locking out legitimate users—absolutely devastating!

Put simply

Think of Azure Bastion like a secure hotel lobby where a guest suddenly finds a way to access the staff-only areas. If someone slips through unnoticed, they could cause chaos in areas meant for authorized personnel only. This critical vulnerability in Azure Bastion allows an attacker with lower-level permissions to gain elevated privileges without proper authorization, compromising the integrity of the entire system.

What to do

An attacker could exploit this vulnerability to escalate their privileges, gaining access to sensitive resources and potentially wreaking havoc on your cloud environment. Imagine a malicious actor changing configurations, stealing data, or even locking out legitimate users—absolutely devastating! To defend against this threat, promptly update Azure Bastion to the latest version and review your access control policies. Ensure that least privilege principles are enforced and regularly audit user permissions. You've got this! With these steps, you'll patch up your defenses and stand tall as a hero in securing your cloud environment! 🛡️

The record
Technical detail
CVSS v3.1
10.0 · CRITICAL
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:L
CVSS v4.0
Not supplied
EPSS
0.00913 · 59.7th percentile
Weakness
CWE-294 · Authentication Bypass by Capture-replay
Published
2025-11-21T04:15Z
Affected products (1)
ProductVersionsFixed in
microsoft/azure_bastion_developerall versions—
References (1)
EPSS history
Timeline
  • 20 NOV 22:18Z
    Azure Bastion Elevation of Privilege Vulnerability
    cvelistv5