CVE-2025-7421: high-severity vulnerability in Tenda O3V2
Tenda O3V2 httpd operateMacFilter fromMacFilterModify stack-based overflow
Published
E-mail alert when it lands in KEV, gets a public PoC or its score goes up.
21Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 8.7epss 1.0%
A vulnerability was found in Tenda O3V2 1.0.0.12(3880). It has been rated as critical. This issue affects the function fromMacFilterModify of the file /goform/operateMacFilter of the component httpd. The manipulation of the argument mac leads to stack-based buffer overflow. The attack may be initiated remotely. The exploit has been disclosed to the public and may be used.
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P
Affected products
Tenda · O3V2Related CVEs — Tenda O3V2
In the same product, most dangerous first.
CVE-2025-7414MEDIUMTenda O3V2 httpd setPingInfo fromNetToolGet os command injectionEPSS 12.6%CVE-2025-7415MEDIUMTenda O3V2 httpd getTraceroute fromTraceroutGet command injectionEPSS 3.4%CVE-2025-7423HIGHTenda O3V2 httpd setWrlFilterList formWifiMacFilterSet stack-based overflowEPSS 1.0%CVE-2025-7422HIGHTenda O3V2 httpd setNetworkService setAutoReboot stack-based overflowEPSS 1.0%CVE-2025-7420HIGHTenda O3V2 httpd setWrlBasicInfo formWifiBasicSet stack-based overflowEPSS 1.0%CVE-2025-7419HIGHTenda O3V2 httpd setRateTest fromSpeedTestSet stack-based overflowEPSS 1.0%