Protection mechanism failure in Volkswagen Customer-Link App
Key facts
- Attack vector
- Adjacent network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Security bypass
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-693.
Summary
This vulnerability allows adjacent attackers to inject arbitrary Controller Area Network messages on vulnerable installations of Volkswagen Customer-Link App 1.30 and HTC Customer-Link Bridge. Authentication is not required to exploit this vulnerability. The specific flaw exists within the Customer-Link App and Customer-Link Bridge. The issue results from the lack of a proper protection mechanism against unauthorized firmware updates. An attacker can leverage this vulnerability to inject CAN messages. Was ZDI-CAN-5264.
Why it matters now
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Volkswagen | Volkswagen Customer-Link App | 1.30 | — | No fix listed | CNA |
- Volkswagen Customer-Link App VendorVolkswagen Affected 1.30 Fixed in — No fix listed CNA
CPE configurations NVD · 2
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:htc:customer-link_bridge:-:*:*:*:*:*:*:* | not specified by NVD | Vulnerable | HTC |
| cpe:2.3:a:volkswagen:customer-link:1.30:*:*:*:*:*:*:* | 1.30 | Vulnerable | Volkswagen |
- cpe:2.3:a:htc:customer-link_bridge:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·HTC
- cpe:2.3:a:volkswagen:customer-link:1.30:*:*:*:*:*:*:* Versions 1.30 Vulnerable ·Volkswagen
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2018-1170
- 2026-10-03 Alias added: GHSA-8q3v-4vc2-wr4g
References
Sources
- CVE-2018-1170 · CVE Program
- CVE-2018-1170 · NVD
- FIRST EPSS
- GHSA-8q3v-4vc2-wr4g · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences