Information disclosure in Zyxel Dx5401-B0

CVE-2023-28770

The sensitive information exposure vulnerability in the CGI “Export_Log” and the binary “zcmd” in Zyxel DX5401-B0 firmware versions prior to V5.17(ABYO.1)C0 could allow a remote unauthenticated attacker to read the system files and to retrieve the password of the supervisor from the encrypted file.

Vulnerability class: Information Disclosure

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: 0.578 (99.1th percentile), scored .

High probability of exploitation in the next 30 days — patch promptly. 99th percentile — 99.1% 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-2023-28770: held from 0.578 to 0.578.

EPSS over last 30 days · oldest: 0.578 · newest: 0.578 · change: 0.000

Affected products

Weakness classification (CWE)

Public proof-of-concept exploits

References

Frequently asked questions

What is CVE-2023-28770?
CVE-2023-28770 is a high-severity vulnerability in Zyxel Dx5401-B0, classified under Information Disclosure. CVSS score: 7.5/10. Published 2023-04-27.
How severe is CVE-2023-28770?
High severity. CVSS v3 base score is 7.5 out of 10.
Is CVE-2023-28770 known to be exploited?
1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.