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CVE-2026-9533— Totolink CA750-PoE Setting cstecgi.cgi recvUpgradeNewFw os command injection

CVSS 6.3 · Medium EPSS 2.95% · P87

Possible ATT&CK Techniques 1AI

T1190 · Exploit Public-Facing Application

Affected Version Matrix 1

VendorProductVersion RangeStatus
TotolinkCA750-PoE6.2c.510affected
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I. Basic Information for CVE-2026-9533

Vulnerability Information
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Vulnerability Title
Totolink CA750-PoE Setting cstecgi.cgi recvUpgradeNewFw os command injection
Source: NVD (National Vulnerability Database)
Vulnerability Description
A vulnerability was detected in Totolink CA750-PoE 6.2c.510. The impacted element is the function recvUpgradeNewFw of the file /cgi-bin/cstecgi.cgi of the component Setting Handler. Performing a manipulation of the argument fwUrl/magicid results in os command injection. It is possible to initiate the attack remotely. The exploit is now public and may be used.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
Source: NVD (National Vulnerability Database)
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: NVD (National Vulnerability Database)
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recvUpgradeNewFw函数对fwUrl/magicid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

VendorProductAffected VersionsCPESubscribe
TotolinkCA750-PoE 6.2c.510 cpe:2.3:a:totolink:ca750-poe:*:*:*:*:*:*:*:*

II. Public POCs for CVE-2026-9533

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III. Intelligence Information for CVE-2026-9533

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News Coverage for CVE-2026-9533 (1)

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

CVE-2026-95439.8 CRITICALTotolink N300RH Web Management cstecgi.cgi setPasswordCfg os command injection
CVE-2026-95346.3 MEDIUMTotolink CA750-PoE Setting cstecgi.cgi setWiFiWpsConfig os command injection
CVE-2026-95326.3 MEDIUMTotolink CA750-PoE Setting cstecgi.cgi setUploadUserData os command injection
CVE-2026-95316.3 MEDIUMTotolink CA750-PoE Setting cstecgi.cgi setUpgradeUboot os command injection

IV. Related Vulnerabilities

Same product: CA750-PoE
Same vendor: Totolink
Same weakness: CWE-78

V. Comments for CVE-2026-9533

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