Vulnerability in Mobatek Mobaxterm Home Edition
CVE-2026-6421
A vulnerability has been found in Mobatek MobaXterm Home Edition up to 26.1. This affects an unknown part in the library msimg32.dll. The manipulation leads to uncontrolled search path. An attack has to be approached locally. The attack is considered to have high complexity. It is indicated that the exploitability is difficult. The exploit has been disclosed to the public and may be used. Upgrading to version 26.2 is able to mitigate this issue. It is suggested to upgrade the affected component. The vendor was contacted early, responded in a very professional manner and quickly released a fixed version of the affected product.
EPSS: 0.002 (4.6th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 7.0 (High). Vector: CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H.
Affected products
- Mobatek Mobaxterm Home Edition — versions 26.0, 26.1, 26.2
Weakness classification (CWE)
Public proof-of-concept exploits
References
- cna@vuldb.com (vdb-entry)
- cna@vuldb.com (signature, permissions-required)
- cna@vuldb.com (third-party-advisory)
- cna@vuldb.com (exploit)
- cna@vuldb.com (related)
- cna@vuldb.com (patch)
Frequently asked questions
- What is CVE-2026-6421?
- CVE-2026-6421 is a high-severity vulnerability in Mobatek Mobaxterm Home Edition, classified under Untrusted Search Path. CVSS score: 7.0/10. Published 2026-04-17.
- How severe is CVE-2026-6421?
- High severity. CVSS v3 base score is 7.0 out of 10.
- Is CVE-2026-6421 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.