Quick answers
- Is CVE-2026-118603 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-118603 being exploited in the wild.
- How severe is CVE-2026-118603?
- High severity, with a CVSS score of 8, published 28 October 2026.
- Which products and versions are affected?
- Alpine iLX-F511.
- Is there a fix for CVE-2026-118603?
- No fixed version is recorded yet. Restrict interaction with the product, particularly avoiding connections to untrusted Bluetooth devices until a patch is available. 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-2026-118603 attacked?
- It is attacked from the adjacent network, in a network appliance.
- Am I affected by CVE-2026-118603?
- 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 interaction with the product, particularly avoiding connections to untrusted Bluetooth devices until a patch is available.
Technical details
The vulnerability is a stack-based buffer overflow in vCard data parsing, caused by insufficient validation of user-supplied input before copying to a fixed-length buffer. Exploitation requires network-adjacent access (Bluetooth) and user interaction (connecting to the malicious device), allowing arbitrary code execution in the root context. The advisory does not name a fixed version.
Affected products
- Alpine iLX-F511
Timeline
- 2026-02-04: disclosed: Vulnerability reported to vendor
- 2026-10-28: advisory: Coordinated public release of advisory