Auth bypass in Efm Networks Co., Ltd Iptime Nas Product (Nas1, 2, 3, 4, 1dual, 2dual 4dual)

CVE-2021-26620

An improper authentication vulnerability leading to information leakage was discovered in iptime NAS2dual. Remote attackers are able to steal important information in the server by exploiting vulnerabilities such as insufficient authentication when accessing the shared folder and changing user’s passwords.

Vulnerability class: Broken Authentication

Published · last modified .

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N.

EPSS exploit prediction

EPSS: 0.013 (70.4th percentile), scored .

Low probability of exploitation in the next 30 days, but still tracked. 70th percentile — 70.4% 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-2021-26620: held from 0.013 to 0.013.

EPSS over last 30 days · oldest: 0.013 · newest: 0.013 · change: 0.000

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2021-26620?
CVE-2021-26620 is a high-severity vulnerability in Efm Networks Co., Ltd Iptime Nas Product (Nas1, 2, 3, 4, 1dual, 2dual 4dual), classified under Improper Authentication. CVSS score: 7.5/10. Published 2022-03-25.
How severe is CVE-2021-26620?
High severity. CVSS v3 base score is 7.5 out of 10.