Improper Restriction of Excessive Authentication Attempts (CWE-307)
7.5
CVSS 3.1
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CVSS VectorNVD
CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:C/C:L/I:H/A:H
Attack Vector
Physical
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Changed
Confidentiality
Low
Integrity
High
Availability
High
Lifecycle Timeline
1
CVE Published
May 19, 2026 - 00:00 nvd
UNKNOWN (no severity yet)
DescriptionNVD
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.
Analysis
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.
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External POC / Exploit Code
Leaving vuln.today
Destination URL
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Verify the source reputation and cross-reference with known databases (Exploit-DB, GitHub Security).
EUVD-2025-209899
GHSA-h596-vpgv-58r7