SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityDeferred

CVE-2025-48413

The `/etc/passwd` and `/etc/shadow` files reveal hard-coded password hashes for the operating system "root" user.

HIGH 7.7EPSS 0.22%

Does this matter?

High impact if exploited, but EPSS currently rates exploitation as unlikely (0.22%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.

Description

The `/etc/passwd` and `/etc/shadow` files reveal hard-coded password hashes for the operating system "root" user. The credentials are shipped with the update files. There is no option for deleting or changing their passwords for an enduser. An attacker can use the credentials to log into the device. Authentication can be performed via SSH backdoor or likely via physical access (UART shell).

CVSS 3.1
7.7 HIGHCVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
EPSS
0.22% probability · 12th percentile
CISA KEV
Not listed
Weakness
CWE-798
Source
551230f0-3615-47bd-b7cc-93e92e730bbf

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