Totolink CA750-PoE 6.2c.510 Setting /cgi-bin/cstecgi.cgi setWiFiWpsConfig PIN os command injection

CVSS Meta Temp Score
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CTI Interest Score
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5.7$0-$5k0.00

Summaryinfo

A vulnerability was found in Totolink CA750-PoE 6.2c.510. It has been rated as critical. This impacts the function setWiFiWpsConfig of the file /cgi-bin/cstecgi.cgi of the component Setting Handler. The manipulation of the argument PIN leads to os command injection. This vulnerability is documented as CVE-2026-9534. The attack can be initiated remotely. Additionally, an exploit exists.

Detailsinfo

A vulnerability was found in Totolink CA750-PoE 6.2c.510. It has been rated as critical. This issue affects the function setWiFiWpsConfig of the file /cgi-bin/cstecgi.cgi of the component Setting Handler. The manipulation of the argument PIN with an unknown input leads to a os command injection vulnerability. Using CWE to declare the problem leads to CWE-78. The product constructs all or part of an OS command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended OS command when it is sent to a downstream component. Impacted is confidentiality, integrity, and availability.

The advisory is shared at github.com. The identification of this vulnerability is CVE-2026-9534. The exploitation is known to be easy. The attack may be initiated remotely. Technical details as well as a public exploit are known. MITRE ATT&CK project uses the attack technique T1202 for this issue.

The exploit is available at github.com. It is declared as proof-of-concept.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2026-31796). Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.3
VulDB Meta Temp Score: 5.7

VulDB Base Score: 6.3
VulDB Temp Score: 5.7
VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Os command injection
CWE: CWE-78 / CWE-77 / CWE-74
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Access: Public
Status: Proof-of-Concept
Download: 🔒

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔒

Timelineinfo

05/25/2026 Advisory disclosed
05/25/2026 +0 days VulDB entry created
05/26/2026 +1 days VulDB entry last update

Sourcesinfo

Vendor: totolink.net

Advisory: github.com
Status: Not defined

CVE: CVE-2026-9534 (🔒)
GCVE (CVE): GCVE-0-2026-9534
GCVE (VulDB): GCVE-100-365561
EUVD: 🔒
scip Labs: https://www.scip.ch/en/?labs.20161013

Entryinfo

Created: 05/25/2026 21:49
Updated: 05/26/2026 10:48
Changes: 05/25/2026 21:49 (58), 05/26/2026 10:48 (1)
Complete: 🔍
Submitter: Buoy_yes
Cache ID: 216::103

Submitinfo

Accepted

  • Submit #813938: TOTOLink CA750-PoE V6.2c.510 Command Injection (by Buoy_yes)

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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