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CVE-2026-1149— Totolink LR350 POST Request cstecgi.cgi setDiagnosisCfg command injection

Quick assessment

Affected
Totolink LR350
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

TOTOLINK LR350是中国吉翁电子（TOTOLINK）公司的一款无线路由器。 TOTOLINK LR350 9.3.5u.6369_B20220309版本存在命令注入漏洞，该漏洞源于对文件/cgi-bin/cstecgi.cgi中参数ip的错误操作，可能导致命令注入。

CVSS 6.3 · Medium EPSS 3.08% · P87

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2026-1149

Vulnerability Information
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Vulnerability Title
Totolink LR350 POST Request cstecgi.cgi setDiagnosisCfg command injection
Source: CVE Program / CVE List V5
Vulnerability Description
A vulnerability was identified in Totolink LR350 9.3.5u.6369_B20220309. This issue affects the function setDiagnosisCfg of the file /cgi-bin/cstecgi.cgi of the component POST Request Handler. The manipulation of the argument ip leads to command injection. The attack can be initiated 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:L/I:L/A:L
Source: CVE Program / CVE List V5
Vulnerability Type
在命令中使用的特殊元素转义处理不恰当(命令注入)
Source: CVE Program / CVE List V5
Vulnerability Title
TOTOLINK LR350 命令注入漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
TOTOLINK LR350是中国吉翁电子（TOTOLINK）公司的一款无线路由器。 TOTOLINK LR350 9.3.5u.6369_B20220309版本存在命令注入漏洞，该漏洞源于对文件/cgi-bin/cstecgi.cgi中参数ip的错误操作，可能导致命令注入。
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
Totolink LR350 9.3.5u.6369_B20220309 cpe:2.3:o:totolink:lr350_firmware:*:*:*:*:*:*:*:*

II. Public POCs for CVE-2026-1149

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III. Intelligence Information for CVE-2026-1149

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Vendor Advisories for CVE-2026-1149 (2)

Same Patch Batch · Totolink · 2026-01-19 · 7 CVEs total

CVE-2026-1158 8.8 HIGH Totolink LR350 POST Request cstecgi.cgi setWizardCfg buffer overflow
CVE-2026-1157 8.8 HIGH Totolink LR350 cstecgi.cgi setWiFiEasyCfg buffer overflow
CVE-2026-1156 8.8 HIGH Totolink LR350 cstecgi.cgi setWiFiBasicCfg buffer overflow
CVE-2026-1155 8.8 HIGH Totolink LR350 cstecgi.cgi setWiFiEasyGuestCfg buffer overflow
CVE-2026-1143 8.8 HIGH TOTOLINK A3700R cstecgi.cgi setWiFiEasyGuestCfg buffer overflow
CVE-2026-1150 6.3 MEDIUM Totolink LR350 POST Request cstecgi.cgi setTracerouteCfg command injection

IV. Related Vulnerabilities

Same product: LR350
Same vendor: Totolink
Same weakness: CWE-77

V. Comments for CVE-2026-1149

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