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Vulnerability record · CVE-2025-11120 · published 28 September 2025

CVE-2025-11120: Tenda ac18 firmware memory buffer overflow vulnerability

Tenda · Ac18 Firmware

A weakness has been identified in Tenda AC8 16.03.34.06. The affected element is the function formSetServerConfig of the file /goform/SetServerConfig. Executing manipulation can lead to buffer overflow. It is possible to launch the attack remotely. The exploit has been made available to the public and could be exploited.

7.4 CVSS 4.0 High EPSS 3.7% · top 10.7% CWE-119 · Memory buffer overflowCWE-120 · Classic buffer overflow
7.4CVSS 4.0 base score, v2 9.0
3.7%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
6References, 2 tagged exploit
17 Jun 2026Last modified by NVD

Description

A weakness has been identified in Tenda AC8 16.03.34.06. The affected element is the function formSetServerConfig of the file /goform/SetServerConfig. Executing manipulation can lead to buffer overflow. It is possible to launch the attack remotely. The exploit has been made available to the public and could be exploited.

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/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/alc9700jmo/CVE/issues/19 ExploitIssue Tracking
https://vuldb.com/?ctiid.326201 Permissions RequiredVDB Entry
https://vuldb.com/?id.326201 Third Party AdvisoryVDB Entry
https://vuldb.com/?submit.664065 Third Party AdvisoryVDB Entry
https://www.tenda.com.cn/ Product
https://github.com/alc9700jmo/CVE/issues/19 ExploitIssue Tracking

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Related vulnerabilities

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

9.8CVE-2026-31255Tenda ac18 firmware command injection vulnerabilityA command injection vulnerability exists in Tenda AC18 V15.03.05.05_multi. The vulnerability is located in the /goform/SetSambaCfg interface, where i…EPSS 1.5%9.8CVE-2024-57579Tenda ac18 firmware out-of-bounds write vulnerabilityTenda AC18 V15.03.05.19 was discovered to contain a stack overflow via the limitSpeedUp parameter in the formSetClientState function.EPSS 0.68%9.8CVE-2024-57580Tenda ac18 firmware out-of-bounds write vulnerabilityTenda AC18 V15.03.05.19 was discovered to contain a stack overflow via the devName parameter in the formSetDeviceName function.EPSS 0.77%9.8CVE-2024-57581Tenda ac18 firmware out-of-bounds write vulnerabilityTenda AC18 V15.03.05.19 was discovered to contain a stack overflow via the firewallEn parameter in the formSetFirewallCfg function.EPSS 0.75%9.8CVE-2024-57582Tenda ac18 firmware out-of-bounds write vulnerabilityTenda AC18 V15.03.05.19 was discovered to contain a stack overflow via the startIP parameter in the formSetPPTPServer function.EPSS 0.75%9.8CVE-2024-57583Tenda ac18 firmware command injection vulnerabilityTenda AC18 V15.03.05.19 was discovered to contain a command injection vulnerability via the usbName parameter in the formSetSambaConf function.EPSS 1.5%9.8CVE-2024-57575Tenda ac18 firmware out-of-bounds write vulnerabilityTenda AC18 V15.03.05.19 was discovered to contain a stack overflow via the ssid parameter in the form_fast_setting_wifi_set function.EPSS 0.79%9.8CVE-2024-33835Tenda ac18 firmware out-of-bounds write vulnerabilityTenda AC18 V15.03.05.05 has a stack overflow vulnerability in the remoteIp parameter from formSetSafeWanWebMan function.EPSS 0.82%

Source: NIST National Vulnerability Database (record CVE-2025-11120), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.