VulnerabilityDeferred

CVE-2025-48416

There is a hard-coded entry in the "/etc/shadow" file in the firmware image for the "root" user.

HIGH 8.1EPSS 0.55%

Does this matter?

High impact if exploited, but EPSS currently rates exploitation as unlikely (0.55%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.

Description

An OpenSSH daemon listens on TCP port 22. There is a hard-coded entry in the "/etc/shadow" file in the firmware image for the "root" user. However, in the default SSH configuration the "PermitRootLogin" is disabled, preventing the root user from logging in via SSH. This configuration can be bypassed/changed by an attacker through multiple paths though.

CVSS 3.1: 8.1 HIGHCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS: 0.55% probability · 44th percentile
CISA KEV: Not listed
Weakness: CWE-912
Source: 551230f0-3615-47bd-b7cc-93e92e730bbf

References

https://r.sec-consult.com/echarge
http://seclists.org/fulldisclosure/2025/May/23

Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.