Tenda AC20 Telnet Service telnet websFormDefine command injection
Tenda · AC20
A command injection flaw in the Telnet Service component of the Tenda AC20 router firmware (version 16.03.08.12), specifically in the websFormDefine function handling the /goform/telnet endpoint, lets an attacker inject operating system commands through crafted input. An attacker can exploit this remotely over the network with low-privilege authenticated access and requires no user interaction.
A vulnerability was identified in Tenda AC20 16.03.08.12. Affected is the function websFormDefine of the file /goform/telnet of the component Telnet Service. The manipulation leads to command injection. It is possible to launch the attack remotely. The exploit has been disclosed to the public and may be used.
- Exploited
- Yes, in VulnCheck KEV
- Reports
- 0
- Tactics
- 0/15
Exploitation timelineDated milestones for a CVE: when it was disclosed, when exploit code became public, when exploitation was confirmed, and when threat reports named it.
First seen exploited 13 months after disclosure. Public exploit code (PoC-in-GitHub) was available the same day.
- First seen exploitedVulnCheck KEV evidence+13 mo
MITRE ATT&CKA public catalogue of the techniques attackers use, maintained by MITRE. Patchfirst uses it to describe what attackers do with a vulnerability. techniques
No techniques linkedNo ATT&CK techniques are linked to this CVE yet. MITRE CTID has not mapped it, and no report passage in the corpus ties it to a technique.