Is CVE-2026-11554 exploited in the wild?

No. Junglewise Threat Intelligence has no report of CVE-2026-11554 being exploited in the wild.

How severe is CVE-2026-11554?

Medium severity, with a CVSS score of 4.3, published 8 June 2026.

Is there a fix for CVE-2026-11554?

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-2026-11554 attacked?

It is attacked over the network, in device firmware.

Am I affected by CVE-2026-11554?

Check whether you run TOTOLINK CP450 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-2026-11554: TOTOLINK CP450 least privilege violation in vsftpd.conf

CVE-2026-11554 · Severity: medium · CVSS 4.3 · Published 2026-06-08

A security vulnerability exists in the TOTOLINK CP450 wireless router. The device's file transfer service (FTP) is configured with incorrect permissions, which could allow a logged-in user to perform actions they should not be authorized to do. This could lead to unauthorized modification of files or settings on the device, potentially compromising its integrity.

Technologies: TOTOLINK CP450. Vendors: TOTOLINK.

Quick answers

Is CVE-2026-11554 exploited in the wild?: No. Junglewise Threat Intelligence has no report of CVE-2026-11554 being exploited in the wild.
How severe is CVE-2026-11554?: Medium severity, with a CVSS score of 4.3, published 8 June 2026.
Which products and versions are affected?: TOTOLINK CP450 4.1.0cu.747.
Is there a fix for CVE-2026-11554?: 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-2026-11554 attacked?: It is attacked over the network, in device firmware.
Am I affected by CVE-2026-11554?: Check whether you run TOTOLINK CP450 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

A vulnerability classified as Incorrect Privilege Assignment (CWE-266) and Least Privilege Violation (CWE-272) exists in TOTOLINK CP450 version 4.1.0cu.747. The issue resides in the configuration of the vsftpd component, specifically within the /etc/vsftpd.conf file. A remote attacker with low-privileged credentials can exploit this misconfiguration to perform unauthorized file system operations. The exploit has been publicly disclosed, increasing the risk of utilization. No official patch has been confirmed in the provided advisory.

Affected products

TOTOLINK CP450 4.1.0cu.747

Timeline

2026-06-08: disclosed: Public disclosure of the vulnerability and exploit details.
2026-06-08: advisory: NVD and VulDB published the vulnerability record.

References

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