CVE-2025-59273 Azure Event Grid System Elevation of Privilege Vulnerability
An unauthorized attacker can elevate privileges in Azure Event Grid due to improper access control, requiring immediate patching.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2025-59273?
CVE-2025-59273 is a high-severity vulnerability in Microsoft Azure Event Grid System, published on 23 Oct 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
Improper access control in Azure Event Grid allows an unauthorized attacker to elevate privileges over a network.
Weakness: CWE-284
Which versions are affected by CVE-2025-59273?
It affects 1 product.
Products include Microsoft Azure Event Grid.
How do I fix CVE-2025-59273?
No fix has been published for CVE-2025-59273 yet. Limit exposure of the affected software until one is available.
Is CVE-2025-59273 being exploited?
There is no known exploitation of CVE-2025-59273 in the wild and no public exploit code.
Other vulnerabilities in Microsoft Azure Event Grid System
Sources
Also known as GHSA-5wpc-p9f6-h8mw.