RCE in Tenda Ac6
CVE-2025-57296
Tenda AC6 router firmware 15.03.05.19 contains a command injection vulnerability in the formSetIptv function, which processes requests to the /goform/SetIPTVCfg web interface. When handling the list and vlanId parameters, the sub_ADBC0 helper function concatenates these user-supplied values into nvram set system commands using doSystemCmd, without validating or sanitizing special characters (e.g., ;, ", #). An unauthenticated or authenticated attacker can exploit this by submitting a crafted POST request, leading to arbitrary system command execution on the affected device.
Vulnerability class: Command Injection (OS Command Injection)
EPSS: 0.033 (87.3th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N.
Affected products
- Tenda Ac6
- Tenda Ac6_firmware — versions 15.03.05.19
- N/a — versions n/a
Weakness classification (CWE)
Public proof-of-concept exploits
References
- cve@mitre.org (Release Notes)
- cve@mitre.org (Exploit, Third Party Advisory)
- cve@mitre.org (Exploit, Third Party Advisory)
Frequently asked questions
- What is CVE-2025-57296?
- CVE-2025-57296 is a medium-severity vulnerability in Tenda Ac6, classified under Command Injection. CVSS score: 6.5/10. Published 2025-09-19.
- How severe is CVE-2025-57296?
- Medium severity. CVSS v3 base score is 6.5 out of 10.
- Is CVE-2025-57296 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.