---
id: CVE-2025-59273
title: >-
  Improper access control in Azure Event Grid allows an unauthorized attacker to
  elevate privileges over a network.
summary: >-
  Improper access control in Azure Event Grid allows an unauthorized attacker to
  elevate privileges over a network.
severity: high
cvss: 7.3
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L'
cwe:
  - CWE-284
vendor: microsoft
product: azure_event_grid
affected:
  - azure_event_grid
published: '2025-10-23'
updated: '2026-10-08'
sourceUpdated: '2026-10-08T11:10:00.250'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2025-59273'
references:
  - url: 'https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-59273'
    label: secure@microsoft.com
tags:
  - nvd
epss: 0.0038
epssPercentile: 0.29809
ingestedAt: '2026-10-08T11:31:27.564Z'
---

## Overview

Improper access control in Azure Event Grid allows an unauthorized attacker to elevate privileges over a network.

## Affected

- `azure_event_grid`

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.