CVE-2026-8259: Tenda AC6 httpd telnet os command injection

Severity: high (CVSS 7.2 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 4.9% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2026-05-11 · updated 2026-07-23
Weakness: CWE-77

Description

A vulnerability has been found in Tenda AC6 2.0/15.03.06.23. The affected element is an unknown function of the file /goform/telnet of the component httpd. The manipulation of the argument lan.ip leads to os command injection. Remote exploitation of the attack is possible. The exploit has been disclosed to the public and may be used.

Affected products

Tenda AC6: 15.03.06.23

References

https://github.com/dxz0069/WAVLINK-WN530H4-Command-Injection-in-set_add_routing/blob/main/Tenda%20AC6V2%20TendaTelnet%20Command%20Injection.md
https://vuldb.com/submit/809877
https://vuldb.com/vuln/362556
https://vuldb.com/vuln/362556/cti
https://www.tenda.com.cn/

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