CVE-2025-59514CWE-269

Microsoft Streaming Service Proxy Elevation of Privilege Vulnerability

High · published November 11, 2025

CVSS v3.1
7.8
EPSS
0%
Percentile
31.3
In the wild
Unconfirmed
What it is

⚡ An authorized attacker can elevate privileges locally with just a sneaky trick! This flaw in Microsoft Streaming Service lets someone boost their access without a hitch. 😱 Think of it as someone sneaking backstage at a concert. They have a ticket, but instead of just enjoying the show, they find a way to access the VIP area without the right pass — that’s what’s happening here! If exploited, this vulnerability could allow an attacker to gain unauthorized access to sensitive data or perform actions that should be restricted. The consequences could be absolutely devastating, leading to a complete compromise of the system's security and trust.

Put simply

Think of it as someone sneaking backstage at a concert. They have a ticket, but instead of just enjoying the show, they find a way to access the VIP area without the right pass — that’s what’s happening here! The improper privilege management in Microsoft Streaming Service allows users with lower access levels to escalate their privileges, essentially bypassing security controls that should restrict them.

What to do

If exploited, this vulnerability could allow an attacker to gain unauthorized access to sensitive data or perform actions that should be restricted. The consequences could be absolutely devastating, leading to a complete compromise of the system's security and trust. To protect against this vulnerability, ensure you update to the latest version of Microsoft Streaming Service as soon as it’s available. Regularly review user permissions to ensure they match the principle of least privilege. It’s also a good idea to conduct security audits to catch any unusual access patterns. You’ve got this! Stay vigilant, patch up, and you’ll keep your systems secure! 🛡️

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
0.00385 · 31.3th percentile
Weakness
CWE-269 · Improper Privilege Management
Published
2025-11-11T17:59Z
EPSS history
Timeline
  • 11 NOV 17:59Z
    Microsoft Streaming Service Proxy Elevation of Privilege Vulnerability
    cvelistv5