CVE-2026-97866 Zhonglun CloudPOS Automatic Update Program.cs channel accessible
Attackers can bypass update channel restrictions in Zhonglun CloudPOS by manipulating update arguments, potentially accessing unauthorized update channels.
- 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-2026-97866?
CVE-2026-97866 is a medium-severity vulnerability in Zhonglun CloudPOS, published on 25 Sep 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
A weakness has been identified in Zhonglun CloudPOS 3.0. Affected by this vulnerability is an unknown functionality of the file Program.cs of the component Automatic Update. Executing a manipulation of the argument version/url/packagekey/package name can lead to channel accessible by non-endpoint. The attack can be launched remotely. Attacks of this nature are highly complex. The exploitation appears to be difficult. The exploit has been made available to the public and could be used for attacks. The vendor was contacted early about this disclosure but did not respond in any way.
Weakness: CWE-300
Which versions are affected by CVE-2026-97866?
How do I fix CVE-2026-97866?
No fix has been published for CVE-2026-97866 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-97866 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-97866 exists.
Sources
Also known as GHSA-pfcj-6jpm-f37g.