OS command injection in Dropbear - CVE-2025-47203
Published: May 13, 2025
Vulnerability identifier: #VU108998
CSH Severity: Low
CVSS v4.0: 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/E:U/U:Clear
CVE-ID: CVE-2025-47203
CWE-ID: CWE-78
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vendor: Matt Johnston
Affected software:
Dropbear
Dropbear
Detailed vulnerability description
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to improper input validation in dbclient when handling hostname argument. A local user with ability to control the hostname can pass a specially crafted input to the application and execute arbitrary OS commands on the target system.
How to mitigate CVE-2025-47203
Install updates from vendor's website.