CVE-2026-25866CWE-428

MobaXterm < 26.1 Notepad++ Unquoted Service Path

High · published March 9, 2026

CVSS v4.0
8.5
EPSS
0%
Percentile
7.7
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v4.0
8.5 · HIGH
Vector
CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
EPSS
0.00185 · 7.7th percentile
Weakness
CWE-428 · Unquoted Search Path or Element
Published
2026-03-09T15:24Z
EPSS history
Timeline
  • 09 MAR 15:24Z
    MobaXterm < 26.1 Notepad++ Unquoted Service Path
    cvelistv5