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CVE-2025-12271— Tenda CH22 RouteStatic fromRouteStatic buffer overflow

Quick assessment

Affected
Tenda CH22
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 CH22是中国腾达（Tenda）公司的一款网络设备。 Tenda CH22 1.0.0.1版本存在安全漏洞，该漏洞源于对文件/goform/RouteStatic中参数page的错误操作，可能导致缓冲区溢出。

CVSS 8.8 · High EPSS 1.01% · P62
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I. Basic Information for CVE-2025-12271

Vulnerability Information
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Vulnerability Title
Tenda CH22 RouteStatic fromRouteStatic buffer overflow
Source: CVE Program / CVE List V5
Vulnerability Description
A vulnerability was identified in Tenda CH22 1.0.0.1. This affects the function fromRouteStatic of the file /goform/RouteStatic. Such manipulation of the argument page leads to buffer overflow. The attack can be launched remotely. The exploit is publicly available and might be used.
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
未进行输入大小检查的缓冲区拷贝(传统缓冲区溢出)
Source: CVE Program / CVE List V5
Vulnerability Title
Tenda CH22 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Tenda CH22是中国腾达（Tenda）公司的一款网络设备。 Tenda CH22 1.0.0.1版本存在安全漏洞，该漏洞源于对文件/goform/RouteStatic中参数page的错误操作，可能导致缓冲区溢出。
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 CH22 1.0.0.1 cpe:2.3:o:tenda:ch22_firmware:*:*:*:*:*:*:*:*

II. Public POCs for CVE-2025-12271

# POC Description Source Link Shenlong Link
AI-Generated POC Premium
Qwen3.6-35B-A3B · 8314 chars
Pro+ exclusive includes:
Vulnerability reproduction recording (real sandbox build + trigger, exclusive)
In-depth vulnerability mechanism
Trigger conditions & impact
Full executable POC code
Exploit chain & mitigation
POC zip download
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III. Intelligence Information for CVE-2025-12271

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Same Patch Batch · Tenda · 2025-10-27 · 18 CVEs total

CVE-2025-12233 8.8 HIGH Tenda CH22 SafeUrlFilter fromSafeUrlFilter buffer overflow
CVE-2025-12322 8.8 HIGH Tenda CH22 NatStaticSetting fromNatStaticSetting buffer overflow
CVE-2025-12274 8.8 HIGH Tenda CH22 P2pListFilter fromP2pListFilter buffer overflow
CVE-2025-12273 8.8 HIGH Tenda CH22 webExcptypemanFilter fromwebExcptypemanFilter buffer overflow
CVE-2025-12272 8.8 HIGH Tenda CH22 addressNat fromAddressNat buffer overflow
CVE-2025-12265 8.8 HIGH Tenda CH22 VirtualSer fromVirtualSer buffer overflow
CVE-2025-12236 8.8 HIGH Tenda CH22 DhcpListClient fromDhcpListClient buffer overflow
CVE-2025-12234 8.8 HIGH Tenda CH22 SafeMacFilter fromSafeMacFilter buffer overflow
CVE-2025-12209 8.8 HIGH Tenda O3 setDhcpConfig GetValue stack-based overflow
CVE-2025-12232 8.8 HIGH Tenda CH22 SafeClientFilter fromSafeClientFilter buffer overflow
CVE-2025-12225 8.8 HIGH Tenda AC6 HTTP Request WifiGuestSet stack-based overflow
CVE-2025-12214 8.8 HIGH Tenda O3 sysAutoReboot GetValue stack-based overflow
CVE-2025-12213 8.8 HIGH Tenda O3 setVlanConfig GetValue stack-based overflow
CVE-2025-12212 8.8 HIGH Tenda O3 setNetworkService GetValue stack-based overflow
CVE-2025-12211 8.8 HIGH Tenda O3 setDmzInfo GetValue stack-based overflow
CVE-2025-12210 8.8 HIGH Tenda O3 AdvSetLanip GetValue stack-based overflow
CVE-2025-12235 8.0 HIGH Tenda CH22 SetIpBind fromSetIpBind buffer overflow

IV. Related Vulnerabilities

Same product: CH22
Same vendor: Tenda
Same weakness: CWE-120

V. Comments for CVE-2025-12271

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