CVE-2025-57848

medium

Description

A container privilege escalation flaw was found in certain Container-native Virtualization 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.

References

https://bugzilla.redhat.com/show_bug.cgi?id=2391099

https://access.redhat.com/security/cve/CVE-2025-57848

Details

Source: Mitre, NVD

Published: 2025-10-23

Updated: 2025-10-27

Risk Information

CVSS v2

Base Score: 4.9

Vector: CVSS2#AV:L/AC:H/Au:M/C:P/I:C/A:P

Severity: Medium

CVSS v3

Base Score: 5.2

Vector: CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:L/I:H/A:L

Severity: Medium

EPSS

EPSS: 0.00004