Arch Linux update for dropbear



Risk Low
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2025-47203
CWE-ID CWE-78
Exploitation vector Local
Public exploit N/A
Vulnerable software
 Arch Linux
Operating systems & Components / Operating system

dropbear
Operating systems & Components / Operating system package or component

Vendor Arch Linux

Security Bulletin

This security bulletin contains one low risk vulnerability.

1) OS command injection

EUVDB-ID: #VU108998

Risk: Low

CVSSv4.0: 5.9 [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 - Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')

Exploit availability: No

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.


Mitigation

Update the affected package dropbear to version 2025.88-1.

Vulnerable software versions

Arch Linux: All versions

dropbear: before 2025.88-1

CPE2.3 External links

https://security.archlinux.org/advisory/ASA-202505-9


Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.



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