O3 Firmware
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Tenda O3V2 1.0.0.12(3880) is vulnerable to Buffer Overflow in the fromSafeSetMacFilter function via the mac parameter. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available and no vendor patch available.
CVE-2025-7423 is a critical stack-based buffer overflow vulnerability in Tenda O3V2 router firmware (version 1.0.0.12(3880)) affecting the WiFi MAC filter functionality. An authenticated attacker can remotely exploit this vulnerability by sending a malicious macList parameter to the /goform/setWrlFilterList endpoint, achieving arbitrary code execution with full system compromise (confidentiality, integrity, and availability impact). The vulnerability has public exploit disclosure and may be actively exploited in the wild.
A buffer overflow vulnerability in A vulnerability classified as critical (CVSS 8.8). Risk factors: public PoC available.
A critical stack-based buffer overflow vulnerability exists in Tenda O3V2 firmware version 1.0.0.12(3880) in the MAC filter modification function. An authenticated remote attacker can exploit improper input validation of the 'mac' parameter to achieve remote code execution with full system compromise (confidentiality, integrity, and availability impact). The vulnerability has public exploit disclosure and demonstrates high real-world exploitability.
CVE-2025-7420 is a critical stack-based buffer overflow vulnerability in Tenda O3V2 router firmware (version 1.0.0.12(3880)) affecting the httpd component's WiFi configuration handler. An authenticated remote attacker can overflow the stack via the 'extChannel' parameter in the /goform/setWrlBasicInfo endpoint, achieving complete system compromise including arbitrary code execution, data theft, and denial of service. Public exploit code has been disclosed and the vulnerability meets CVSS 8.8 severity criteria, indicating high real-world risk for affected router deployments.
A critical stack-based buffer overflow vulnerability exists in Tenda O3V2 router firmware version 1.0.0.12(3880), affecting the httpd daemon's speed test functionality. An authenticated remote attacker can exploit the destIP parameter in the /goform/setRateTest endpoint to achieve arbitrary code execution with full system compromise (confidentiality, integrity, and availability). Public exploit code is available and the vulnerability meets criteria for active exploitation risk.
A buffer overflow vulnerability in A vulnerability (CVSS 8.8). Risk factors: public PoC available.
CVE-2025-7417 is a critical stack-based buffer overflow vulnerability in Tenda O3V2 router firmware (version 1.0.0.12(3880)) affecting the /goform/setPingInfo endpoint. An authenticated attacker can exploit improper input validation on the 'ip' parameter to achieve remote code execution with high impact on confidentiality, integrity, and availability. A public proof-of-concept exploit exists, and the vulnerability is actively exploitable in real-world environments.
A critical stack-based buffer overflow vulnerability exists in Tenda O3V2 1.0.0.12(3880) in the httpd component's fromSysToolTime function within /goform/setSysTimeInfo. An authenticated remote attacker can exploit this by manipulating the Time argument to achieve arbitrary code execution with high confidentiality, integrity, and availability impact (CVSS 8.8). Public exploit disclosure and active exploitation indicators elevate real-world risk significantly.
Tenda O3V2 1.0.0.12(3880) is vulnerable to Buffer Overflow in the fromSafeSetMacFilter function via the mac parameter. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available and no vendor patch available.
CVE-2025-7423 is a critical stack-based buffer overflow vulnerability in Tenda O3V2 router firmware (version 1.0.0.12(3880)) affecting the WiFi MAC filter functionality. An authenticated attacker can remotely exploit this vulnerability by sending a malicious macList parameter to the /goform/setWrlFilterList endpoint, achieving arbitrary code execution with full system compromise (confidentiality, integrity, and availability impact). The vulnerability has public exploit disclosure and may be actively exploited in the wild.
A buffer overflow vulnerability in A vulnerability classified as critical (CVSS 8.8). Risk factors: public PoC available.
A critical stack-based buffer overflow vulnerability exists in Tenda O3V2 firmware version 1.0.0.12(3880) in the MAC filter modification function. An authenticated remote attacker can exploit improper input validation of the 'mac' parameter to achieve remote code execution with full system compromise (confidentiality, integrity, and availability impact). The vulnerability has public exploit disclosure and demonstrates high real-world exploitability.
CVE-2025-7420 is a critical stack-based buffer overflow vulnerability in Tenda O3V2 router firmware (version 1.0.0.12(3880)) affecting the httpd component's WiFi configuration handler. An authenticated remote attacker can overflow the stack via the 'extChannel' parameter in the /goform/setWrlBasicInfo endpoint, achieving complete system compromise including arbitrary code execution, data theft, and denial of service. Public exploit code has been disclosed and the vulnerability meets CVSS 8.8 severity criteria, indicating high real-world risk for affected router deployments.
A critical stack-based buffer overflow vulnerability exists in Tenda O3V2 router firmware version 1.0.0.12(3880), affecting the httpd daemon's speed test functionality. An authenticated remote attacker can exploit the destIP parameter in the /goform/setRateTest endpoint to achieve arbitrary code execution with full system compromise (confidentiality, integrity, and availability). Public exploit code is available and the vulnerability meets criteria for active exploitation risk.
A buffer overflow vulnerability in A vulnerability (CVSS 8.8). Risk factors: public PoC available.
CVE-2025-7417 is a critical stack-based buffer overflow vulnerability in Tenda O3V2 router firmware (version 1.0.0.12(3880)) affecting the /goform/setPingInfo endpoint. An authenticated attacker can exploit improper input validation on the 'ip' parameter to achieve remote code execution with high impact on confidentiality, integrity, and availability. A public proof-of-concept exploit exists, and the vulnerability is actively exploitable in real-world environments.
A critical stack-based buffer overflow vulnerability exists in Tenda O3V2 1.0.0.12(3880) in the httpd component's fromSysToolTime function within /goform/setSysTimeInfo. An authenticated remote attacker can exploit this by manipulating the Time argument to achieve arbitrary code execution with high confidentiality, integrity, and availability impact (CVSS 8.8). Public exploit disclosure and active exploitation indicators elevate real-world risk significantly.