Is CVE-2026-9534 exploited in the wild?

No. Junglewise Threat Intelligence has no report of CVE-2026-9534 being exploited in the wild.

How severe is CVE-2026-9534?

Medium severity, with a CVSS score of 6.3, published 26 May 2026.

Is there a fix for CVE-2026-9534?

No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.

How is CVE-2026-9534 attacked?

It is attacked over the network, in a network appliance.

Am I affected by CVE-2026-9534?

Check whether you run TOTOLINK CA750-PoE at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

CVE-2026-9534: Totolink CA750-PoE command injection in setWiFiWpsConfig

CVE-2026-9534 · Severity: medium · CVSS 6.3 · Published 2026-05-26

A security vulnerability exists in the Totolink CA750-PoE, a wireless access point used for providing network connectivity. An attacker can exploit this flaw to take control of the device by sending a specially crafted request to the Wi-Fi configuration settings. If successful, this could allow an unauthorized user to disrupt network operations, intercept traffic, or use the device as a foothold to attack other systems on the corporate network.

Technologies: TOTOLINK CA750-PoE. Vendors: TOTOLINK.

Quick answers

Is CVE-2026-9534 exploited in the wild?: No. Junglewise Threat Intelligence has no report of CVE-2026-9534 being exploited in the wild.
How severe is CVE-2026-9534?: Medium severity, with a CVSS score of 6.3, published 26 May 2026.
Which products and versions are affected?: TOTOLINK CA750-PoE 6.2c.510.
Is there a fix for CVE-2026-9534?: No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
How is CVE-2026-9534 attacked?: It is attacked over the network, in a network appliance.
Am I affected by CVE-2026-9534?: Check whether you run TOTOLINK CA750-PoE at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

Technical details

An OS command injection vulnerability (CWE-78) exists in the Totolink CA750-PoE firmware version 6.2c.510. The flaw is located within the 'setWiFiWpsConfig' function in the '/cgi-bin/cstecgi.cgi' binary (specifically within the wps.so library). The 'PIN' argument is processed without sufficient sanitization before being passed to a system command execution context. A remote attacker with low privileges (authenticated access to the setting handler) can inject arbitrary shell commands using backticks or other shell metacharacters. A public proof-of-concept demonstrates that an attacker can start a telnet daemon to gain a remote shell on the device.

Affected products

Totolink CA750-PoE 6.2c.510

Timeline

2026-05-26: disclosed: Initial disclosure via VulDB and GitHub repository
2026-05-26: advisory: NVD publication date

References

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