Auth bypass in Yosmart Yolink Application

CVE-2025-59451

The YoSmart YoLink application through 2025-10-02 has session tokens with unexpectedly long lifetimes.

Vulnerability class: Broken Access Control

Published · last modified .

CVSS v3 metric

CVSS v3 base score 3.5 (Low). Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:N/I:L/A:N.

EPSS exploit prediction

EPSS: 0.003 (21.5th percentile), scored .

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 22nd percentile — 21.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS trend (30 days)EPSS over the last 30 days for CVE-2025-59451: held from 0.003 to 0.003.

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

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2025-59451?
CVE-2025-59451 is a low-severity vulnerability in Yosmart Yolink Application, classified under Incorrect Authorization. CVSS score: 3.5/10. Published 2025-10-06.
How severe is CVE-2025-59451?
Low severity. CVSS v3 base score is 3.5 out of 10.