Vulnerability Details CVE-2025-57853
A container privilege escalation flaw was found in certain Web Terminal images. This issue stems from the /etc/passwd file being created with group-writable permissions during build time. In certain conditions, an attacker who can execute commands within an affected container, even as a non-root user, can leverage their membership in the root group to modify the /etc/passwd file. This could allow the attacker to add a new user with any arbitrary UID, including UID 0, leading to full root privileges within the container.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.0
EPSS Ranking 0.1%
CVSS Severity
CVSS v3 Score 6.4
References
Products affected by CVE-2025-57853
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cpe:2.3:a:redhat:web_terminal:-