CVE-2025-55244CWE-284

Azure Bot Service Elevation of Privilege Vulnerability

Critical · published September 4, 2025

CVSS v3.1
9.0
EPSS
1%
Percentile
50.1
In the wild
Unconfirmed
What it is

🔥 A simple misconfiguration in Azure Bot Service could let an attacker elevate their privileges unchallenged — that’s like a hotel guest magically gaining access to the staff-only areas just by asking! Think of the Azure Bot Service as a hotel where guests can roam freely, but they shouldn't be allowed to waltz into forbidden areas. This vulnerability is like a rogue guest who finds a way to access the staff lounge and kitchen, enabling them to do serious mischief without anyone noticing. An attacker exploiting this vulnerability could gain unauthorized access to sensitive areas within your bot environment, potentially compromising user data and integrity. It’s a gateway to wreaking havoc, manipulating bot functionalities, or even impersonating the bot itself — absolutely devastating!

Put simply

Think of the Azure Bot Service as a hotel where guests can roam freely, but they shouldn't be allowed to waltz into forbidden areas. This vulnerability is like a rogue guest who finds a way to access the staff lounge and kitchen, enabling them to do serious mischief without anyone noticing. This elevation of privilege vulnerability in the Azure Bot Service allows unauthorized users to elevate their access rights, due to misconfigured permissions. Essentially, it means that someone without the right credentials can gain admin-level powers, compromising the entire system’s security.

What to do

An attacker exploiting this vulnerability could gain unauthorized access to sensitive areas within your bot environment, potentially compromising user data and integrity. It’s a gateway to wreaking havoc, manipulating bot functionalities, or even impersonating the bot itself — absolutely devastating! To secure your environment, review and rectify the permission configurations immediately. Ensure that only authorized users have elevated privileges and apply the latest patches or updates provided by Microsoft. Regular audits of your bot service configurations are also essential to maintain security integrity. You've got this! Follow these steps and your Azure Bot Service will be safer in no time! 🛡️

The record
Technical detail
CVSS v3.1
9.0 · CRITICAL
Vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H/E:U/RL:O/RC:C
CVSS v4.0
Not supplied
EPSS
0.00640 · 50.1th percentile
Weakness
CWE-284 · Improper Access Control
Published
2025-09-04T23:09Z
EPSS history
Timeline
  • 04 SEP 23:09Z
    Azure Bot Service Elevation of Privilege Vulnerability
    cvelistv5