What is CVE-2025-41346?

CVE-2025-41346 is a critical-severity vulnerability in Iest Winplus, classified under Incorrect Authorization. CVSS score: 9.8/10. Published 2025-11-18.

How severe is CVE-2025-41346?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Auth bypass in Iest Winplus

CVE-2025-41346

Faulty authorization control in software WinPlus v24.11.27 by Informática del Este that allows another user to be impersonated simply by knowing their 'numerical ID', meaning that an attacker could compromise another user's account, thereby affecting the confidentiality, integrity, and availability of the data stored in the application.

Vulnerability class: Broken Access Control

EPSS: 0.003 (23.5th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

Iest Winplus — versions 24.11.27
Informatica Del Este Winplus — versions 24.11.27

Weakness classification (CWE)

CWE-863 — Incorrect Authorization

References

cve-coordination@incibe.es (Third Party Advisory, patch)

Frequently asked questions

What is CVE-2025-41346?: CVE-2025-41346 is a critical-severity vulnerability in Iest Winplus, classified under Incorrect Authorization. CVSS score: 9.8/10. Published 2025-11-18.
How severe is CVE-2025-41346?: Critical severity. CVSS v3 base score is 9.8 out of 10.