Is CVE-2026-9532 exploited in the wild?

No. Junglewise Threat Intelligence has no report of CVE-2026-9532 being exploited in the wild.

How severe is CVE-2026-9532?

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

Is there a fix for CVE-2026-9532?

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-2026-9532 attacked?

It is attacked over the network, in device firmware.

Am I affected by CVE-2026-9532?

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-2026-9532: Totolink CA750-PoE command injection in setUploadUserData

CVE-2026-9532 · Severity: medium · CVSS 6.3 · Published 2026-05-26

A security vulnerability exists in the Totolink CA750-PoE router, a device used to provide wireless networking and power over ethernet. An attacker can exploit this flaw to take complete control of the router by sending a specially crafted request to the device's management interface. This could allow an unauthorized person to intercept network traffic, disrupt internet connectivity, 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-2026-9532 exploited in the wild?: No. Junglewise Threat Intelligence has no report of CVE-2026-9532 being exploited in the wild.
How severe is CVE-2026-9532?: 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-2026-9532?: 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-2026-9532 attacked?: It is attacked over the network, in device firmware.
Am I affected by CVE-2026-9532?: 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 within the 'setUploadUserData' function of the '/cgi-bin/cstecgi.cgi' component. The root cause is the improper neutralization of special elements in the 'FileName' argument, which is subsequently passed to a system shell without adequate validation. A remote attacker with low-level authentication can exploit this by sending a crafted POST request containing shell metacharacters (e.g., backticks) in the FileName field. Successful exploitation allows for arbitrary code execution with the privileges of the web server, potentially leading to a full system compromise. Public exploit code (PoC) demonstrating a telnet reverse shell has been disclosed.

Affected products

Totolink CA750-PoE 6.2c.510

Timeline

2026-05-26: disclosed: Vulnerability and PoC publicly disclosed via GitHub and VulDB.
2026-05-26: advisory: NVD published the CVE record.

References

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