Is CVE-2026-9513 exploited in the wild?

No. Junglewise Threat Intelligence has no report of CVE-2026-9513 being exploited in the wild.

How severe is CVE-2026-9513?

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

Is there a fix for CVE-2026-9513?

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-2026-9513 attacked?

It is attacked over the network, in device firmware.

Am I affected by CVE-2026-9513?

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-2026-9513: Totolink CA750-PoE OS command injection in NTPSyncWithHost

CVE-2026-9513 · Severity: medium · CVSS 6.3 · Published 2026-05-25

Totolink CA750-PoE is a wireless access point used to provide network connectivity in business and home environments. A security vulnerability in its time synchronization feature allows an attacker with basic user access to take control of the device. By sending a specially crafted request, an attacker can execute unauthorized commands, potentially leading to a complete compromise of the device, interception of network traffic, or disruption of service.

Technologies: TOTOLINK CA750-PoE. Vendors: TOTOLINK.

Quick answers

Is CVE-2026-9513 exploited in the wild?: No. Junglewise Threat Intelligence has no report of CVE-2026-9513 being exploited in the wild.
How severe is CVE-2026-9513?: 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-2026-9513?: 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-2026-9513 attacked?: It is attacked over the network, in device firmware.
Am I affected by CVE-2026-9513?: 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 NTPSyncWithHost function in the /cgi-bin/cstecgi.cgi binary (specifically within system.so). The 'host_time' parameter is processed without sufficient sanitization before being passed to a system command execution call. A remote attacker with low-privileged authenticated access can exploit this by sending a crafted POST request containing shell metacharacters (e.g., backticks) in the host_time field. Successful exploitation allows for arbitrary command execution as the root user, as demonstrated by public proof-of-concept code that starts a telnet daemon.

Affected products

Totolink CA750-PoE 6.2c.510

Timeline

2026-05-25: disclosed: Vulnerability disclosed via VulDB and GitHub PoC
2026-05-25: advisory: CVE-2026-9513 assigned

References

This page as Markdown. Free to reuse under CC BY 4.0 with a link back.