CVE-2026-11554 TOTOLINK CP450 vsftpd vsftpd.conf least privilege violation

Medium 5.3 Published Updated

Remote attackers can exploit a least privilege violation in the vsftpd configuration of TOTOLINK CP450 devices to escalate privileges.

Exploited in the wild
Not known
Login needed
Any signed-in user
Attackable
Over the internet
Victim action needed
Not needed
Fix
None listed

What is CVE-2026-11554?

CVE-2026-11554 is a medium-severity vulnerability in TOTOLINK CP450, published on 8 Jun 2026. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

A vulnerability was determined in TOTOLINK CP450 4.1.0cu.747. This vulnerability affects unknown code of the file /etc/vsftpd.conf of the component vsftpd. This manipulation causes least privilege violation. The attack may be initiated remotely. The exploit has been publicly disclosed and may be utilized.

Weakness: CWE-272, CWE-266

Which versions are affected by CVE-2026-11554?

How do I fix CVE-2026-11554?

No fix has been published for CVE-2026-11554 yet. Limit exposure of the affected software until one is available.

Is CVE-2026-11554 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-11554 exists.

Sources

Also known as GHSA-j4v3-p9cr-3xhp.

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