Main Vulnerability Database Vulnerabilities #VU59813

Improper input validation in xstream - CVE-2021-39139

Published: January 19, 2022 / Updated: May 5, 2026

Vulnerability identifier: #VU59813

CSH Severity: High

CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber

CVE-ID: CVE-2021-39139

CWE-ID: CWE-20

Exploitation vector: Remote access

Exploit availability: No public exploit available

Vulnerable software:
xstream

Software vendor:
XStream

Description

The vulnerability allows a remote attacker to execute arbitrary code.

The vulnerability exists due to improper input validation. A remote attacker can exploit this vulnerability to execute arbitrary code.

Install updates from vendor's website.