Encryption Implementation Flaw in BYD DiLink 3.0 OS Affecting Vehicles
CVE-2025-7020

5.1MEDIUM

Key Information:

Vendor

Byd

Status
Dilink Os
Vendor
CVE Published:
9 August 2025

What is CVE-2025-7020?

A vulnerability in BYD's DiLink 3.0 OS permits attackers with physical access to vehicles to circumvent the encryption safeguarding system log dumps. This exposes sensitive information within the logs, such as personally identifiable information (PII) and location data, which can significantly compromise user privacy and security. The vulnerability originated from a prior patch aimed at addressing another security issue.

Affected Version(s)

DiLink OS Dilink 3.0 13.1.32.2307211.1

References

https://asrg.io/security-advisories/cve-2025-7020/
third-party-advisory

CVSS V4

Score:
5.1
Severity:
MEDIUM
Confidentiality:
High
Integrity:
None
Availability:
None
Attack Vector:
Physical
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Lior Zur Lotan (PlaxidityX)
.
CVE-2025-7020 : Encryption Implementation Flaw in BYD DiLink 3.0 OS Affecting Vehicles