Is CVE-2026-9512 exploited in the wild?

No. Junglewise Threat Intelligence has no report of CVE-2026-9512 being exploited in the wild.

How severe is CVE-2026-9512?

Medium severity, with a CVSS score of 6.3, published 25 May 2026.

Is there a fix for CVE-2026-9512?

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-2026-9512 attacked?

It is attacked over the network, in device firmware.

Am I affected by CVE-2026-9512?

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-2026-9512: Totolink CA750-PoE OS command injection in setPasswordCfg

CVE-2026-9512 · Severity: medium · CVSS 6.3 · Published 2026-05-25

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 executing unauthorized system commands. This could lead to a complete compromise of the device, allowing an attacker to intercept network traffic or use the device as a foothold to attack other systems on the local network.

Technologies: TOTOLINK CA750-PoE. Vendors: TOTOLINK.

Quick answers

Is CVE-2026-9512 exploited in the wild?: No. Junglewise Threat Intelligence has no report of CVE-2026-9512 being exploited in the wild.
How severe is CVE-2026-9512?: Medium severity, with a CVSS score of 6.3, published 25 May 2026.
Which products and versions are affected?: TOTOLINK CA750-PoE 6.2c.510.
Is there a fix for CVE-2026-9512?: 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-2026-9512 attacked?: It is attacked over the network, in device firmware.
Am I affected by CVE-2026-9512?: 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 exists in the Totolink CA750-PoE firmware version 6.2c.510. The flaw is located within the 'setPasswordCfg' function in the '/cgi-bin/cstecgi.cgi' binary (specifically within the 'system.so' library). The application fails to properly sanitize the 'admuser' and 'admpass' parameters before passing them to a system shell. A remote attacker with low privileges can exploit this by sending a specially crafted POST request containing shell metacharacters (e.g., backticks) to execute arbitrary commands with the privileges of the web server. A public proof-of-concept demonstrating the ability to start a telnet backdoor has been released.

Affected products

Totolink CA750-PoE 6.2c.510

Timeline

2026-05-25: disclosed: Initial vulnerability report and PoC published on GitHub
2026-05-25: advisory: CVE-2026-9512 published via VulDB/NVD

References

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