9.3Critical
Microsoft Azure Data Factory
CVE-2026-62834
Improper verification of cryptographic signature in Azure Data Factory allows an unauthorized attacker to elevate privileges over a network.
What this means for your business
- It affects Microsoft Azure Data Factory. It matters if your company, or a supplier that handles your data, runs it.
- An attacker can use it remotely, over a network, without a login, but only after tricking someone into an action such as opening a file or a link.
- FIRST's prediction model gives it a 0.3% chance of attack attempts being seen in the next 30 days, ranking above 22% of all known flaws.
What to do
- 1Check whether your company or your suppliers run Microsoft Azure Data Factory, and which version. The affected versions are listed further down this page.
- 2If you do, apply the vendor's fix. A patch or vendor advisory has been published.
Not sure if your company is exposed?
Fastnexa’s certified penetration testers can check whether attackers could use this flaw, or others like it, against your websites, apps and network. The full test is free for our first 10 founding clients until 31 December 2026.
Scoring
- CVSS
- 9.3 (v3.1)
- Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N- Weakness
- CWE-347
- Assigned by
- secure@microsoft.com
Dates
- Published
- 2026-08-20
- Last modified
- 2026-08-24
- Sources
- NVD
Affected products
- Microsoft Azure Data Factoryall versions
As listed in the NVD configuration data. Not a statement about your estate.