# CVE-2026-118611: Alpine iLX-F511 Bluetooth OBEX packet handling heap buffer overflow

Source: https://junglewise.ai/threats/cve-2026-118611-alpine-ilx-f511-bluetooth-obex-packet-handling-heap-based-buffer  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-10-28. Updated: 2026-10-28  
License: CC BY 4.0 with a link back

CVE-2026-118611 · Severity: medium · CVSS 6.8 · Published 2026-10-28

The Alpine iLX-F511 is an in-car infotainment system that connects to mobile devices via Bluetooth. A flaw in its handling of Bluetooth OBEX (file transfer) packets allows an attacker in physical proximity to execute arbitrary code with root privileges on the device, potentially compromising vehicle systems and personal data.

Technologies: [Alpine iLX-F511](https://junglewise.ai/threats/technologies/ilx-f511). Vendors: [Alpine](https://junglewise.ai/threats/vendors/alpine).

## Quick answers

**Is CVE-2026-118611 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-118611 being exploited in the wild.

**How severe is CVE-2026-118611?** Medium severity, with a CVSS score of 6.8, published 28 October 2026.

**Which products and versions are affected?** Alpine iLX-F511.

**Is there a fix for CVE-2026-118611?** No fixed version is recorded yet. Restrict Bluetooth interactions with untrusted sources in proximity to the vehicle; disable Bluetooth or maintain distance from unknown devices when not actively pairing. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.

**How is CVE-2026-118611 attacked?** It is attacked with physical access, in a network appliance.

**Am I affected by CVE-2026-118611?** Check whether you run Alpine iLX-F511. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## How to fix


Restrict Bluetooth interactions with untrusted sources in proximity to the vehicle; disable Bluetooth or maintain distance from unknown devices when not actively pairing.

## Technical details

A heap-based buffer overflow exists in the OBEX packet handler due to insufficient length validation of user-supplied data before copying to a heap buffer. An attacker within physical proximity can send a malicious Bluetooth OBEX packet without authentication to trigger the overflow and achieve code execution in the root context.

## Affected products

- Alpine iLX-F511

## Timeline

- 2026-02-04: disclosed: Vulnerability reported to vendor
- 2026-10-28: advisory: Coordinated public disclosure

## References

- [https://www.zerodayinitiative.com/advisories/ZDI-26-829/](https://www.zerodayinitiative.com/advisories/ZDI-26-829/)

## Related threats

- [Alpine iLX-F511 Android Auto Service stack buffer overflow RCE](https://junglewise.ai/threats/cve-2026-118610-alpine-ilx-f511-android-auto-service-stack-based-buffer-overflow)
- [Alpine iLX-F511 Android Auto Connection Handler stack buffer overflow](https://junglewise.ai/threats/cve-2026-118609-alpine-ilx-f511-android-auto-connection-handler-stack-based)
- [Alpine iLX-F511 diagapp command injection vulnerability](https://junglewise.ai/threats/cve-2026-118607-alpine-ilx-f511-diagapp-command-injection-vulnerability-this)
- [Alpine iLX-F511 framework service remote code execution](https://junglewise.ai/threats/cve-2026-118606-alpine-ilx-f511-framework-service-exposed-dangerous-function)
- [Alpine iLX-F511 stack-based buffer overflow in prh_sdp_service_search_decode](https://junglewise.ai/threats/cve-2026-118605-alpine-ilx-f511-prh-sdp-service-search-decode-stack-based-buffer)