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CVE-2026-9532— Totolink CA750-PoE Setting cstecgi.cgi setUploadUserData os command injection

Quick assessment

Affected
Totolink CA750-PoE
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 CA750-PoE是中国吉翁电子（TOTOLINK）公司的一款无线网络接入设备。 TOTOLINK CA750-PoE 6.2c.510版本存在操作系统命令注入漏洞，该漏洞源于Setting Handler组件中/cgi-bin/cstecgi.cgi文件的setUploadUserData函数对FileName参数操作不当，可能导致os命令注入。

CVSS 6.3 · Medium EPSS 1.77% · P77

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application

Affected Version Matrix 1

VendorProduct Version RangeStatus
Totolink CA750-PoE 6.2c.510 affected
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I. Basic Information for CVE-2026-9532

Vulnerability Information
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Vulnerability Title
Totolink CA750-PoE Setting cstecgi.cgi setUploadUserData os command injection
Source: CVE Program / CVE List V5
Vulnerability Description
A security vulnerability has been detected in Totolink CA750-PoE 6.2c.510. The affected element is the function setUploadUserData of the file /cgi-bin/cstecgi.cgi of the component Setting Handler. Such manipulation of the argument FileName leads to os command injection. The attack may be performed from remote. The exploit has been disclosed publicly and may 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
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 CA750-PoE 操作系统命令注入漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
TOTOLINK CA750-PoE是中国吉翁电子（TOTOLINK）公司的一款无线网络接入设备。 TOTOLINK CA750-PoE 6.2c.510版本存在操作系统命令注入漏洞，该漏洞源于Setting Handler组件中/cgi-bin/cstecgi.cgi文件的setUploadUserData函数对FileName参数操作不当，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 CA750-PoE 6.2c.510 cpe:2.3:a:totolink:ca750-poe:*:*:*:*:*:*:*:*

II. Public POCs for CVE-2026-9532

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III. Intelligence Information for CVE-2026-9532

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Proof of Concept for CVE-2026-9532 (1)

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

CVE-2026-9543 9.8 CRITICAL Totolink N300RH Web Management cstecgi.cgi setPasswordCfg os command injection
CVE-2026-9531 6.3 MEDIUM Totolink CA750-PoE Setting cstecgi.cgi setUpgradeUboot 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: CA750-PoE
Same vendor: Totolink
Same weakness: CWE-78

V. Comments for CVE-2026-9532

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