CVE-2025-12235 Tenda CH22 SetIpBind fromSetIpBind buffer overflow
A buffer overflow in the Tenda CH22 router allows local network attackers to execute arbitrary code or cause denial of service.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2025-12235?
CVE-2025-12235 is a high-severity memory corruption vulnerability in Tenda CH22, published on 27 Oct 2025. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
A vulnerability was found in Tenda CH22 1.0.0.1. This vulnerability affects the function fromSetIpBind of the file /goform/SetIpBind. The manipulation of the argument page results in buffer overflow. The attack must originate from the local network. The exploit has been made public and could be used.
Which versions are affected by CVE-2025-12235?
It affects 1 product.
Products include Tenda Ch22 Firmware.
How do I fix CVE-2025-12235?
No fix has been published for CVE-2025-12235 yet. Limit exposure of the affected software until one is available.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2025-12235 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-12235 exists.
Other vulnerabilities in Tenda CH22
- CVE-2025-11418 Tenda CH22 HTTP Request AdvSetWrlsafeset formWrlsafeset stack-based overflow
- CVE-2025-11423 Tenda CH22 SafeEmailFilter formSafeEmailFilter memory corruption
- CVE-2026-5604 Tenda CH22 Parameter CertLocalPrecreate formCertLocalPrecreate stack-based overflow
- CVE-2026-5605 Tenda CH22 WrlExtraSet formWrlExtraSet stack-based overflow
- CVE-2026-5204 Tenda CH22 Parameter webtypelibrary formWebTypeLibrary stack-based overflow
Sources
Also known as GHSA-mrmh-4ppp-pg8c.