CVE-2025-12344 Yonyou U8 Cloud Request Header NCloudGatewayServlet unrestricted upload
Remote attackers can upload arbitrary files via the NCloudGatewayServlet, potentially leading to code execution in Yonyou U8 Cloud.
- 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-2025-12344?
CVE-2025-12344 is a medium-severity vulnerability in Yonyou U8 Cloud, published on 28 Oct 2025. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
A vulnerability has been found in Yonyou U8 Cloud up to 5.1sp. The impacted element is an unknown function of the file /service/NCloudGatewayServlet of the component Request Header Handler. Such manipulation of the argument ts/sign leads to unrestricted upload. The attack may be performed from remote. The exploit has been disclosed to the public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.
Which versions are affected by CVE-2025-12344?
How do I fix CVE-2025-12344?
No fix has been published for CVE-2025-12344 yet. Limit exposure of the affected software until one is available.
Is CVE-2025-12344 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-12344 exists.
Sources
Also known as GHSA-2xvr-434q-cr2p.