What is CVE-2022-38337?

CVE-2022-38337 is a critical-severity vulnerability in Mobatek Mobaxterm, classified under Use of Hard-coded Credentials. CVSS score: 9.1/10. Published 2022-12-06.

How severe is CVE-2022-38337?

Critical severity. CVSS v3 base score is 9.1 out of 10.

Vulnerability in Mobatek Mobaxterm

CVE-2022-38337

When aborting a SFTP connection, MobaXterm before v22.1 sends a hardcoded password to the server. The server treats this as an invalid login attempt which can result in a Denial of Service (DoS) for the user if services like fail2ban are used.

Published 2022-12-06 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 9.1 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H.

EPSS exploit prediction

EPSS: 0.008 (55.6th percentile), scored 2026-10-23.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 56th percentile — 55.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.008 · newest: 0.008 · change: +0.000

Affected products

Mobatek Mobaxterm

Weakness classification (CWE)

CWE-798 — Use of Hard-coded Credentials

References

docs.ssh-mitm.at/vulnerabilities/CVE-2022-38337.html (Third Party Advisory)
mobaxterm.mobatek.net/download-home-edition.html (Patch, Release Notes, Vendor Advisory)

Frequently asked questions

What is CVE-2022-38337?: CVE-2022-38337 is a critical-severity vulnerability in Mobatek Mobaxterm, classified under Use of Hard-coded Credentials. CVSS score: 9.1/10. Published 2022-12-06.
How severe is CVE-2022-38337?: Critical severity. CVSS v3 base score is 9.1 out of 10.