CVE-2026-5153 Tenda CH22 WriteFacMac FormWriteFacMac command injection
Remote attackers can execute arbitrary commands on Tenda CH22 routers via the WriteFacMac form, requiring authentication.
- 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-2026-5153?
CVE-2026-5153 is a medium-severity command injection vulnerability in Tenda CH22, published on 30 Mar 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
A flaw has been found in Tenda CH22 1.0.0.1. The affected element is the function FormWriteFacMac of the file /goform/WriteFacMac. Executing a manipulation of the argument mac can lead to command injection. The attack may be launched remotely. The exploit has been published and may be used.
Which versions are affected by CVE-2026-5153?
It affects 1 product.
Products include Tenda Ch22 Firmware.
How do I fix CVE-2026-5153?
No fix has been published for CVE-2026-5153 yet. Limit exposure of the affected software until one is available.
Upgrade, and pass arguments to programs as a list instead of through a shell. More about Command injection.
Is CVE-2026-5153 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-5153 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-cg57-rmwp-qvm9.