What is CVE-2026-11620?

CVE-2026-11620 is a medium-severity vulnerability in Totolink Ex200, classified under Incorrect Privilege Assignment. CVSS score: 5.3/10. Published 2026-06-09.

How severe is CVE-2026-11620?

Medium severity. CVSS v3 base score is 5.3 out of 10.

Privilege escalation in Totolink Ex200

CVE-2026-11620

A security flaw has been discovered in TOTOLINK EX200 4.0.3c.7646. This affects an unknown function of the file /etc/vsftpd.conf of the component vsftpd. The manipulation results in least privilege violation. It is possible to launch the attack remotely. The exploit has been released to the public and may be used for attacks.

Published 2026-06-09 · last modified 2026-07-23.

CVSS v3 metric

CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N.

EPSS exploit prediction

EPSS: 0.003 (18.9th percentile), scored 2026-09-29.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 19th percentile — 18.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.003 · newest: 0.003 · change: 0.000

Affected products

Totolink Ex200 — versions 4.0.3c.7646

Weakness classification (CWE)

References

vuldb.com/cve/CVE-2026-11620 (third-party-advisory)
vuldb.com/submit/834825 (third-party-advisory)
vuldb.com/vuln/369301 (vdb-entry)
vuldb.com/vuln/369301/cti (signature, permissions-required)
www.notion.so/TOTOLink-EX200-V4-0-3c-7646_B20201211-3671f5ba989080ccaa41d9f76fb… (exploit)
www.totolink.net/ (product)

Frequently asked questions

What is CVE-2026-11620?: CVE-2026-11620 is a medium-severity vulnerability in Totolink Ex200, classified under Incorrect Privilege Assignment. CVSS score: 5.3/10. Published 2026-06-09.
How severe is CVE-2026-11620?: Medium severity. CVSS v3 base score is 5.3 out of 10.