Submit #836469: Tenda W20E Enterprise Router V15.11.0.6 Stack-based Buffer Overflowinfo

TitelTenda W20E Enterprise Router V15.11.0.6 Stack-based Buffer Overflow
BeschreibungA stack-based buffer overflow vulnerability has been identified in the formSetPortMirror function of the Tenda W20E router. By sending a crafted portMirrorMirroredPorts parameter, an authenticated attacker can overflow a 256-byte stack buffer, leading to a service crash or Remote Code Execution (RCE). The formSetPortMirror function handles port mirroring configuration. It retrieves the user-controlled parameter portMirrorMirroredPorts and uses sprintf to format it into a fixed-size stack buffer sMibValue (256 bytes). The lack of bounds checking on pMirroredPorts allows an attacker to provide a string longer than 256 bytes, overwriting the saved Link Register (LR) on the stack.
Quelle⚠️ https://github.com/Robots10/IoT_vlu/blob/main/reports/Tenda/formSetPortMirror/portMirrorMirroredPorts.md
Benutzer
 hacker128 (UID 93883)
Einreichung24.05.2026 17:22 (vor 16 Tagen)
Moderieren07.06.2026 18:06 (14 days later)
StatusAkzeptiert
VulDB Eintrag369142 [Tenda W20E 15.11.0.6 /goform/setPortMirror formSetPortMirror portMirrorMirroredPorts Pufferüberlauf]
Punkte20

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