← Vulnerability feed

Vulnerability record · CVE-2026-8259 · published 11 May 2026

CVE-2026-8259: Tenda ac6 firmware command injection vulnerability

Tenda · Ac6 Firmware

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.

2.0 CVSS 4.0 Low EPSS 8.3% · top 5.3% CWE-77 · Command injectionCWE-78 · OS command injection
2.0CVSS 4.0 base score, v2 5.8
8.3%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
5References, 1 tagged exploit
23 Jul 2026Last modified by NVD

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.

CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://github.com/dxz0069/WAVLINK-WN530H4-Command-Injection-in-set_add_routing/blob/main/Tenda%20AC6V2%20TendaTelnet%20 ExploitThird Party Advisory
https://vuldb.com/submit/809877 Third Party AdvisoryVDB Entry
https://vuldb.com/vuln/362556 Third Party AdvisoryVDB Entry
https://vuldb.com/vuln/362556/cti Permissions RequiredVDB Entry
https://www.tenda.com.cn/ Product

Track CVE-2026-8259 inside VULONE

Watch it alongside the ransomware crews, C2 infrastructure and forum chatter that reference it, query it through the API and pull it into your SIEM over TAXII.

Start free Open in platform

Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

9.8CVE-2025-52221Tenda ac6 firmware out-of-bounds write vulnerabilityTenda AC6 15.03.05.16_multi is vulnerable to Buffer Overflow in the formSetCfm function via the funcname, funcpara1, and funcpara2 parameters.EPSS 0.39%9.8CVE-2025-31355Tenda ac6 firmware download of code without integrity check vulnerabilityA firmware update vulnerability exists in the Firmware Signature Validation functionality of Tenda AC6 V5.0 V02.03.01.110. A specially crafted malici…EPSS 0.30%9.8CVE-2025-32010Tenda ac6 firmware stack-based buffer overflow vulnerabilityA stack-based buffer overflow vulnerability exists in the Cloud API functionality of Tenda AC6 V5.0 V02.03.01.110. A specially crafted HTTP response …EPSS 0.69%9.8CVE-2025-24322Tenda ac6 firmware vulnerabilityAn unsafe default authentication vulnerability exists in the Initial Setup Authentication functionality of Tenda AC6 V5.0 V02.03.01.110. A specially …EPSS 0.57%9.8CVE-2025-27129Tenda ac6 firmware authentication bypass via alternate path vulnerabilityAn authentication bypass vulnerability exists in the HTTP authentication functionality of Tenda AC6 V5.0 V02.03.01.110. A specially crafted HTTP requ…EPSS 2.1%9.8CVE-2025-29030Tenda ac6 firmware out-of-bounds write vulnerabilityTenda AC6 v15.03.05.16 was discovered to contain a buffer overflow via the formWifiWpsOOB function.EPSS 0.48%9.8CVE-2025-29031Tenda ac6 firmware out-of-bounds write vulnerabilityTenda AC6 v15.03.05.16 was discovered to contain a buffer overflow via the fromAddressNat function.EPSS 0.48%9.8CVE-2025-29029Tenda ac6 firmware out-of-bounds write vulnerabilityTenda AC6 v15.03.05.16 was discovered to contain a buffer overflow via the formSetSpeedWan function.EPSS 0.48%

Source: NIST National Vulnerability Database (record CVE-2026-8259), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.