CVE-2025-33074 Azure Functions Remote Code Execution Vulnerability
An authorized attacker can execute arbitrary code in Azure Functions due to improper cryptographic signature verification.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2025-33074?
CVE-2025-33074 is a high-severity code injection vulnerability in Microsoft Azure Functions, published on 30 Apr 2025. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
Improper verification of cryptographic signature in Microsoft Azure Functions allows an authorized attacker to execute code over a network.
Weakness: CWE-347
Which versions are affected by CVE-2025-33074?
It affects 1 product.
Products include Microsoft Azure Functions.
How do I fix CVE-2025-33074?
No fix has been published for CVE-2025-33074 yet. Limit exposure of the affected software until one is available.
Upgrade, and never evaluate templates, expressions or code built from user input. More about Code injection.
Is CVE-2025-33074 being exploited?
There is no known exploitation of CVE-2025-33074 in the wild and no public exploit code.
Other vulnerabilities in Microsoft Azure Functions
Sources
Also known as GHSA-m48h-73h7-3chf.