CVE-2025-7020 BYD DiLink OS Incorrect encryption Implementation of system log dumps
An attacker with physical access can bypass log encryption to read sensitive PII and location data from BYD DiLink OS system logs.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2025-7020?
CVE-2025-7020 is a medium-severity vulnerability in BYD DiLink OS, published on 9 Aug 2025. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
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.
Weakness: CWE-656
Which versions are affected by CVE-2025-7020?
How do I fix CVE-2025-7020?
No fix has been published for CVE-2025-7020 yet. Limit exposure of the affected software until one is available.
Is CVE-2025-7020 being exploited?
There is no known exploitation of CVE-2025-7020 in the wild and no public exploit code.
Sources
Also known as GHSA-92rp-4wfm-mqg4.