What is CVE-2026-11554?

CVE-2026-11554 is a medium-severity vulnerability in Totolink Cp450, classified under Incorrect Privilege Assignment. CVSS score: 4.3/10. Published 2026-06-08.

How severe is CVE-2026-11554?

Medium severity. CVSS v3 base score is 4.3 out of 10.

Privilege escalation in Totolink Cp450

CVE-2026-11554

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.

Published 2026-06-08 · last modified 2026-07-23.

CVSS v3 metric

CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N.

EPSS exploit prediction

EPSS: 0.002 (10.1th percentile), scored 2026-10-25.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 10th percentile — 10.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.002 · newest: 0.002 · change: 0.000

Affected products

Totolink Cp450 — versions 4.1.0cu.747

Weakness classification (CWE)

References

vuldb.com/cve/CVE-2026-11554 (third-party-advisory)
vuldb.com/submit/834821 (third-party-advisory)
vuldb.com/vuln/369164 (vdb-entry)
vuldb.com/vuln/369164/cti (signature, permissions-required)
www.notion.so/TOTOLink-CP450-V4-1-0cu-747-3671f5ba989080c3b39ac3984d2ff44d (exploit)
www.totolink.net/ (product)

Frequently asked questions

What is CVE-2026-11554?: CVE-2026-11554 is a medium-severity vulnerability in Totolink Cp450, classified under Incorrect Privilege Assignment. CVSS score: 4.3/10. Published 2026-06-08.
How severe is CVE-2026-11554?: Medium severity. CVSS v3 base score is 4.3 out of 10.