Goal Reached Thanks to every supporter — we hit 100%!

Goal: 1000 CNY · Raised: 1359 CNY

100%
Buy Us a Coffee

CVE-2026-9543— Totolink N300RH Web Management cstecgi.cgi setPasswordCfg os command injection

Quick assessment

Affected
Totolink N300RH
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.

TOTOLINK N300RH是中国吉翁电子（TOTOLINK）公司的一款长距离无线路由器。 TOTOLINK N300RH 6.1c.1353_B20190305版本存在安全漏洞，该漏洞源于Web Management Interface组件中文件/cgi-bin/cstecgi.cgi的setPasswordCfg函数对参数admpass操作不当，可能导致OS命令注入。

CVSS 9.8 · Critical EPSS 3.25% · P88

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application

Affected Version Matrix 1

VendorProduct Version RangeStatus
Totolink N300RH 6.1c.1353_B20190305 affected
Get alerts for future matching vulnerabilities Log in to subscribe

I. Basic Information for CVE-2026-9543

Vulnerability Information
Have questions about the vulnerability? See if Shenlong's analysis helps!
View Shenlong Deep Dive ↗

Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.

Vulnerability Title
Totolink N300RH Web Management cstecgi.cgi setPasswordCfg os command injection
Source: CVE Program / CVE List V5
Vulnerability Description
A vulnerability has been found in Totolink N300RH 6.1c.1353_B20190305. Affected is the function setPasswordCfg of the file /cgi-bin/cstecgi.cgi of the component Web Management Interface. Such manipulation of the argument admpass leads to os command injection. The attack can be executed remotely. The exploit has been disclosed to the public and may be used.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
OS命令中使用的特殊元素转义处理不恰当(OS命令注入)
Source: CVE Program / CVE List V5
Vulnerability Title
TOTOLINK N300RH 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
TOTOLINK N300RH是中国吉翁电子（TOTOLINK）公司的一款长距离无线路由器。 TOTOLINK N300RH 6.1c.1353_B20190305版本存在安全漏洞，该漏洞源于Web Management Interface组件中文件/cgi-bin/cstecgi.cgi的setPasswordCfg函数对参数admpass操作不当，可能导致OS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 N300RH 6.1c.1353_B20190305 cpe:2.3:o:totolink:n300rh_firmware:*:*:*:*:*:*:*:*

II. Public POCs for CVE-2026-9543

# POC Description Source Link Shenlong Link
AI-Generated POC Premium
Qwen3.6-35B-A3B · 7122 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
100+ AI POC generations per month

III. Intelligence Information for CVE-2026-9543

请登录查看更多情报信息。

Exploits & Public PoCs for CVE-2026-9543 (1)

Same Patch Batch · Totolink · 2026-05-26 · 5 CVEs total

CVE-2026-9531 6.3 MEDIUM Totolink CA750-PoE Setting cstecgi.cgi setUpgradeUboot os command injection
CVE-2026-9532 6.3 MEDIUM Totolink CA750-PoE Setting cstecgi.cgi setUploadUserData os command injection
CVE-2026-9533 6.3 MEDIUM Totolink CA750-PoE Setting cstecgi.cgi recvUpgradeNewFw os command injection
CVE-2026-9534 6.3 MEDIUM Totolink CA750-PoE Setting cstecgi.cgi setWiFiWpsConfig os command injection

IV. Related Vulnerabilities

Same product: N300RH
Same vendor: Totolink
Same weakness: CWE-78

V. Comments for CVE-2026-9543

No comments yet

Leave a comment