CVE-2026-1158— Totolink LR350 POST Request cstecgi.cgi setWizardCfg buffer overflow
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I. Basic Information for CVE-2026-1158
Vulnerability Information
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Vulnerability Title
Totolink LR350 POST Request cstecgi.cgi setWizardCfg buffer overflow
Source: NVD (National Vulnerability Database)
Vulnerability Description
A security flaw has been discovered in Totolink LR350 9.3.5u.6369_B20220309. This vulnerability affects the function setWizardCfg of the file /cgi-bin/cstecgi.cgi of the component POST Request Handler. Performing a manipulation of the argument ssid results in buffer overflow. The attack can be initiated remotely. The exploit has been released to the public and may be used for attacks.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Source: NVD (National Vulnerability Database)
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: NVD (National Vulnerability Database)
Vulnerability Title
TOTOLINK LR350 安全漏洞
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版本存在安全漏洞，该漏洞源于对文件/cgi-bin/cstecgi.cgi中参数ssid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
II. Public POCs for CVE-2026-1158
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- CVE-2026-1158 Totolink LR350 POST Request cstecgi.cgi setWizardCfg buffer overflowvdb-entrytechnical-description
- https://nvd.nist.gov/vuln/detail/CVE-2026-1158
Same Patch Batch · Totolink · 2026-01-19 · 7 CVEs total
| 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 |
| CVE-2026-1149 | 6.3 MEDIUM | Totolink LR350 POST Request cstecgi.cgi setDiagnosisCfg command injection |
IV. Related Vulnerabilities
Same product: LR350
- CVE-2026-4976
Totolink LR350 cstecgi.cgi setWiFiGuestCfg buffer overflow - CVE-2026-1157
Totolink LR350 cstecgi.cgi setWiFiEasyCfg buffer overflow - CVE-2026-1156
Totolink LR350 cstecgi.cgi setWiFiBasicCfg buffer overflow - CVE-2026-1155
Totolink LR350 cstecgi.cgi setWiFiEasyGuestCfg buffer overfl - CVE-2026-1150
Totolink LR350 POST Request cstecgi.cgi setTracerouteCfg com
Same vendor: Totolink
- CVE-2026-8137
Totolink X5000R formDdns sub_458E40 buffer overflow - CVE-2026-7823
Totolink A8000RU cstecgi.cgi setAppFilterCfg os command inje - CVE-2026-7750
Totolink N300RH POST Request cstecgi.cgi setMacFilterRules b - CVE-2026-7749
Totolink N300RH POST Request cstecgi.cgi setWanConfig buffer - CVE-2026-7748
Totolink N300RH POST Request cstecgi.cgi setUpgradeFW buffer
Same weakness: CWE-120
- CVE-2026-8260
D-Link DCS-935L HNAP Service hnap_service SetDeviceSettings - CVE-2026-8137
Totolink X5000R formDdns sub_458E40 buffer overflow - CVE-2026-6691
MongoDB C Driver Cyrus SASL Canonicalization Buffer Overflow - CVE-2026-7857
D-Link DI-8100 CGI user_group.asp sprintf buffer overflow - CVE-2026-7856
D-Link DI-8100 Web Management url_member.asp buffer overflow
V. Comments for CVE-2026-1158
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