CVE-2025-59273CWE-284broken-access-control

CVE-2025-59273

High · published October 24, 2025

CVSS v3.1
7.3
EPSS
0%
Percentile
30.7
In the wild
Unconfirmed
What it is

⚡ Improper access control in Azure Event Grid is like leaving the party door wide open — an unauthorized attacker can just stroll in and start calling the shots! 🔥 Think of Azure Event Grid as a swanky party with exclusive access. If the bouncer (access control) isn't doing their job, anyone can waltz in and take the VIP seat, potentially disrupting the whole event! An attacker could elevate their privileges and gain unauthorized access to critical resources, which could lead to data breaches or service disruptions. This is no small matter; it’s like a rogue guest grabbing the microphone and making wild announcements, wreaking havoc on the entire gathering!

Put simply

Think of Azure Event Grid as a swanky party with exclusive access. If the bouncer (access control) isn't doing their job, anyone can waltz in and take the VIP seat, potentially disrupting the whole event! This vulnerability arises from improper access control within Azure Event Grid. It allows attackers to escalate their privileges, potentially compromising the integrity of the network and the services relying on it.

What to do

An attacker could elevate their privileges and gain unauthorized access to critical resources, which could lead to data breaches or service disruptions. This is no small matter; it’s like a rogue guest grabbing the microphone and making wild announcements, wreaking havoc on the entire gathering! To mitigate this risk, review your access control policies immediately. Ensure robust authentication measures are in place, and apply the latest security patches from Microsoft. It's vital to audit your Azure configurations to block any unauthorized access. You've got this! By taking action now, you can secure your party and keep those unwanted guests out! 🛡️

The record
Technical detail
CVSS v3.1
7.3 · HIGH
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
CVSS v4.0
Not supplied
EPSS
0.00380 · 30.7th percentile
Weakness
CWE-284 · Improper Access Control
Published
2025-10-24T02:15Z
Affected products (1)
ProductVersionsFixed in
microsoft/azure_event_gridall versions—
References (1)
EPSS history
Timeline
  • 23 OCT 21:17Z
    Azure Event Grid System Elevation of Privilege Vulnerability
    cvelistv5