Tenda: security record
CISA's Known Exploited Vulnerabilities catalog lists 3 flaws in Tenda routers and network gear that attackers have exploited in the wild, added on 3 November 2021.
What this list means
CISA adds a flaw to its Known Exploited Vulnerabilities catalog when there is reliable evidence that attackers have used it in the wild and clear steps exist to fix or reduce it. A listed flaw usually has a patch or workaround from the maker. Some older devices are no longer supported and will not be fixed. If you own an affected model, check the maker's notice, update the firmware or replace the device if it is out of support.
Tenda AC11 Router Stack Buffer Overflow Vulnerability
Tenda AC11 devices contain a stack buffer overflow vulnerability in /goform/setmac which allows attackers to execute code via a crafted post request.
Tenda AC1900 Router AC15 Model Remote Code Execution Vulnerability
Tenda AC1900 Router AC15 Model contains an unspecified vulnerability that allows remote attackers to execute system commands via the deviceName POST parameter.
Tenda AC7, AC9, and AC10 Routers Command Injection Vulnerability
Tenda AC7, AC9, and AC10 devices contain a command injection vulnerability due to the "formsetUsbUnload" function executes a dosystemCmd function with untrusted input. Successful exploitation allows an attacker to execute OS commands via a crafted goform/setUsbUnload request.
A listing shows that a flaw was exploited, not how a maker compares overall. Makers with many devices in use tend to appear more often. Check the maker's own notice for the models and firmware versions affected.
Sources
- Cybersecurity and Infrastructure Security Agency (CISA), Known Exploited Vulnerabilities Catalog, version 2026.10.28, released 28 October 2026
- National Institute of Standards and Technology, National Vulnerability Database
Checked 29 October 2026.