What is CVE-2025-52089?

CVE-2025-52089 is a high-severity vulnerability in Totolink N300rb, classified under Missing Authentication for Critical Function. CVSS score: 8.8/10. Published 2025-07-11.

How severe is CVE-2025-52089?

High severity. CVSS v3 base score is 8.8 out of 10.

Auth bypass in Totolink N300rb

CVE-2025-52089

A hidden remote support feature protected by a static secret in TOTOLINK N300RB firmware version 8.54 allows an authenticated attacker to execute arbitrary OS commands with root privileges.

Vulnerability class: Broken Authentication

EPSS: 0.071 (93.4th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

Totolink N300rb
Totolink N300rb_firmware — versions 8.54
N/a — versions n/a

Weakness classification (CWE)

CWE-306 — Missing Authentication for Critical Function

References

cve@mitre.org (Exploit, Third Party Advisory)

Frequently asked questions

What is CVE-2025-52089?: CVE-2025-52089 is a high-severity vulnerability in Totolink N300rb, classified under Missing Authentication for Critical Function. CVSS score: 8.8/10. Published 2025-07-11.
How severe is CVE-2025-52089?: High severity. CVSS v3 base score is 8.8 out of 10.