In BYD Atto3, an attacker can obtain an authentication key through Brute Force attack, which is permanently available. The authentication key enables flash to the Electronic Parking Break (EPB) and Supplemental Restoration System (SRS) related ECUs.

No CVSS v4.0

Attack Vector Physical

Attack Complexity Low

Privileges Required None

Scope Changed

Confidentiality Impact Low

Integrity Impact High

Availability Impact High

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

No EPSS score available.

Exploitation poc

Automatable no

Technical Impact partial

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
n/a n/a affected
Version Status Constraints
n/a affected —

No data.

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Project Subscriptions

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Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://www.notion.so/BYD-Atto3-26215fb6156c8000b338db3c2011f637?source=copy_link cve-icon cve-icon cve-icon
https://www.notion.so/CVE-2025-61081-26215fb6156c8000b338db3c2011f637 cve-icon cve-icon cve-icon
History

Tue, 19 May 2026 19:30:00 +0000

Type Values Removed Values Added
Metrics cvssV3_1

{'score': 7.5, 'vector': 'CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:C/C:L/I:H/A:H'}

ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Tue, 19 May 2026 18:45:00 +0000

Type Values Removed Values Added
Title Unauthorized ECU Flashing via Brute-Forced Authentication Key
Weaknesses CWE-307
CWE-522

Tue, 19 May 2026 17:45:00 +0000

Type Values Removed Values Added
Description In BYD Atto3, an attacker can obtain an authentication key through Brute Force attack, which is permanently available. The authentication key enables flash to the Electronic Parking Break (EPB) and Supplemental Restoration System (SRS) related ECUs.
References

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published:

Updated: 2026-05-19T18:13:43.105Z

Reserved: 2025-09-26T00:00:00.000Z

Link: CVE-2025-61081

cve-icon Vulnrichment

Updated: 2026-05-19T18:11:05.124Z

cve-icon NVD

Status : Received

Published: 2026-05-19T18:16:19.767

Modified: 2026-05-19T19:16:45.383

Link: CVE-2025-61081

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-05-19T18:30:11Z

Weaknesses