Replay Attack Vulnerability in KIA-branded Aftermarket Keyless Entry Systems
CVE-2025-6029

9.4CRITICAL

Key Information:

Vendor

Kia

Status
Aftermarket Generic Smart Keyless Entry System
Vendor
CVE Published:
13 June 2025

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2025-6029?

A significant security flaw exists in KIA-branded aftermarket smart keyless entry systems, particularly those distributed in Ecuador. The use of fixed learning codes for both locking and unlocking functions makes these systems vulnerable to replay attacks. Attackers can intercept and reuse these codes to gain unauthorized access to vehicles, exposing owners to theft and other risks. Awareness and updates to security measures are crucial as the manufacturer information is pending verification.

Affected Version(s)

Aftermarket Generic Smart Keyless Entry System KIA Ecuador Key Fobs version 2022/2023

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

CVE-2025-6029 - Proof of Concept

References

https://revers3everything.com/unlocking-thousands-of-cars...
related
https://asrg.io/security-advisories/cve-2025-6029-kia-bra...
third-party-advisory

CVSS V4

Score:
9.4
Severity:
CRITICAL
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Adjacent Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

Danilo Erazo
.
CVE-2025-6029 : Replay Attack Vulnerability in KIA-branded Aftermarket Keyless Entry Systems