CVE-2025-7020CWE-656

BYD DiLink OS Incorrect encryption Implementation of system log dumps

Medium · published August 9, 2025

CVSS v4.0
5.1
EPSS
0%
Percentile
3.7
In the wild
Unconfirmed
What it is

An incorrect encryption implementation vulnerability exists in the system log dump feature of BYD's DiLink 3.0 OS (e.g. in the model ATTO3). An attacker with physical access to the vehicle can bypass the encryption of log dumps on the In-Vehicle Infotainment (IVI) unit's storage. This allows the attacker to access and read system logs containing sensitive data, including personally identifiable information (PII) and location data.

This vulnerability was introduced in a patch intended to fix CVE-2024-54728.

The record
Technical detail
CVSS v4.0
5.1 · MEDIUM
Vector
CVSS:4.0/AV:P/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:L/SI:N/SA:N/AU:Y/V:D/RE:H
EPSS
0.00149 · 3.7th percentile
Weakness
CWE-656 · Reliance on Security Through Obscurity
Published
2025-08-09T12:42Z
EPSS history
Timeline
  • 09 AUG 12:42Z
    BYD DiLink OS Incorrect encryption Implementation of system log dumps
    cvelistv5