Vulnerability in Mobatek Mobaxterm
CVE-2026-25866
MobaXterm versions prior to 26.1 contain an uncontrolled search path element vulnerability. The application calls WinExec to execute Notepad++ without a fully qualified executable path when opening remote files. An attacker can exploit the search path behavior by placing a malicious executable earlier in the search order, resulting in arbitrary code execution in the context of the affected user.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.002 (7.7th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 8th percentile — 7.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.001 · newest: 0.002 · change: +0.001
Affected products
- Mobatek Mobaxterm — versions 0
Weakness classification (CWE)
References
- mobaxterm.mobatek.net/download-home-edition.html (release-notes, patch, Vendor Advisory)
- www.vulncheck.com/advisories/mobaxterm-notepad-unquoted-service-path (Third Party Advisory, third-party-advisory)
Frequently asked questions
- What is CVE-2026-25866?
- CVE-2026-25866 is a high-severity vulnerability in Mobatek Mobaxterm, classified under Unquoted Search Path or Element. CVSS score: 7.8/10. Published 2026-03-09.
- How severe is CVE-2026-25866?
- High severity. CVSS v3 base score is 7.8 out of 10.