CVE-2025-1819
Published: 02 March 2025
Summary
CVE-2025-1819 is a medium-severity Command Injection (CWE-77) vulnerability in Tenda Ac7 Firmware. Its CVSS base score is 5.3 (Medium).
Operationally, exploitation aligns with the MITRE ATT&CK technique Exploit Public-Facing Application (T1190); ranked in the top 26.7% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog.
The strongest mitigations our analysis identified are NIST 800-53 RA-5 (Vulnerability Monitoring and Scanning) and SI-10 (Information Input Validation).
Deeper analysis
A critical OS command injection vulnerability was discovered in the Tenda AC7 1200M wireless router running firmware version 15.03.06.44. The flaw resides in the TendaTelnet function within the /goform/telnet endpoint, where unsanitized input to the lan_ip parameter allows arbitrary command execution. The issue is tracked under CWE-77 and CWE-78 and carries a CVSS 4.0 score of 5.3.
An authenticated remote attacker can supply a crafted lan_ip value to execute operating-system commands on the device. Because the attack can be launched over the network without user interaction, an adversary who obtains low-privileged credentials or re-uses a session can potentially alter device configuration, exfiltrate data, or pivot further into the local network. A public proof-of-concept has already been posted to GitHub.
The EPSS score for the vulnerability rose from a low baseline to a recorded peak of 0.0166, indicating that exploitation interest increased after disclosure. No vendor advisory or firmware update addressing the issue has been referenced in the available sources.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2025-5859
Vulnerability details
A vulnerability, which was classified as critical, was found in Tenda AC7 1200M 15.03.06.44. Affected is the function TendaTelnet of the file /goform/telnet. The manipulation of the argument lan_ip leads to os command injection. It is possible to launch the…
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attack remotely. The exploit has been disclosed to the public and may be used.
- CWE(s)
Related Threats
MITRE ATT&CK Enterprise TechniquesAI
Why these techniques?
Direct OS command injection in public-facing router web form (/goform/telnet) enables remote exploitation of the device (T1190) and arbitrary command execution via its CLI (T1059.008).
CVEs Like This One
Affected Assets
Mitigating Controls
Mitigating Controls (NIST 800-53 r5) AI
Directly remediates the OS command injection flaw in the TendaTelnet function by applying firmware patches or updates.
Validates and sanitizes the lan_ip input parameter to block command injection manipulations in the /goform/telnet endpoint.
Scans systems for the specific CVE-2025-1819 vulnerability in Tenda AC7 firmware to identify exploitable routers.