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CVE-2024-2809— Tenda AC15 SetFirewallCfg formSetFirewallCfg stack-based overflow

Quick assessment

Affected
Tenda AC15
Exploitation
Public or AI PoC available; prioritize validation
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Tenda AC15是中国腾达（Tenda）公司的一款无线路由器。 Tenda AC15 15.03.05.18 版本存在安全漏洞，该漏洞源于 /goform/SetFirewallCfg 页面的 formSetFirewallCfg 方法中的firewallEn 参数存在基于堆栈的缓冲区溢出。

CVSS 8.8 · High EPSS 1.92% · P79
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I. Basic Information for CVE-2024-2809

Vulnerability Information
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Vulnerability Title
Tenda AC15 SetFirewallCfg formSetFirewallCfg stack-based overflow
Source: CVE Program / CVE List V5
Vulnerability Description
A vulnerability, which was classified as critical, was found in Tenda AC15 15.03.05.18/15.03.20_multi. Affected is the function formSetFirewallCfg of the file /goform/SetFirewallCfg. The manipulation of the argument firewallEn leads to stack-based buffer overflow. It is possible to launch the attack remotely. The exploit has been disclosed to the public and may be used. The identifier of this vulnerability is VDB-257664. NOTE: The vendor was contacted early about this disclosure but did not respond in any way.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
栈缓冲区溢出
Source: CVE Program / CVE List V5
Vulnerability Title
Tenda AC15 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Tenda AC15是中国腾达（Tenda）公司的一款无线路由器。 Tenda AC15 15.03.05.18 版本存在安全漏洞，该漏洞源于 /goform/SetFirewallCfg 页面的 formSetFirewallCfg 方法中的firewallEn 参数存在基于堆栈的缓冲区溢出。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Tenda AC15 15.03.05.18 -

II. Public POCs for CVE-2024-2809

# POC Description Source Link Shenlong Link
AI-Generated POC Verified env Premium
Qwen3.6-35B-A3B · 8186 chars
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In-depth vulnerability mechanism
Trigger conditions & impact
Full executable POC code
Exploit chain & mitigation
POC zip download
100+ AI POC generations per month

III. Intelligence Information for CVE-2024-2809

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Vendor Advisories for CVE-2024-2809 (1)

Other References for CVE-2024-2809 (1)

Same Patch Batch · Tenda · 2024-03-22 · 13 CVEs total

CVE-2024-2815 8.8 HIGH Tenda AC15 Cookie execCommand R7WebsSecurityHandler stack-based overflow
CVE-2024-2814 8.8 HIGH Tenda AC15 DhcpListClient fromDhcpListClient stack-based overflow
CVE-2024-2813 8.8 HIGH Tenda AC15 fast_setting_wifi_set form_fast_setting_wifi_set stack-based overflow
CVE-2024-2811 8.8 HIGH Tenda AC15 WifiWpsStart formWifiWpsStart stack-based overflow
CVE-2024-2810 8.8 HIGH Tenda AC15 WifiWpsOOB formWifiWpsOOB stack-based overflow
CVE-2024-2808 8.8 HIGH Tenda AC15 QuickIndex formQuickIndex stack-based overflow
CVE-2024-2807 8.8 HIGH Tenda AC15 expandDlnaFile formExpandDlnaFile stack-based overflow
CVE-2024-2806 8.8 HIGH Tenda AC15 addWifiMacFilter stack-based overflow
CVE-2024-2805 8.8 HIGH Tenda AC15 SetSpeedWan formSetSpeedWan stack-based overflow
CVE-2024-2812 6.3 MEDIUM Tenda AC15 WriteFacMac formWriteFacMac os command injection
CVE-2024-2817 4.3 MEDIUM Tenda AC15 SysToolRestoreSet fromSysToolRestoreSet cross-site request forgery
CVE-2024-2816 4.3 MEDIUM Tenda AC15 SysToolReboot fromSysToolReboot cross-site request forgery

IV. Related Vulnerabilities

Same product: AC15
Same vendor: Tenda
Same weakness: CWE-121

V. Comments for CVE-2024-2809

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