CVE-2026-118603 Alpine iLX-F511 vCard Parsing Stack-based Buffer Overflow Remote Code Execution Vulnerability
- Exploited in the wild
- Not known
- Fix
- None listed
What is CVE-2026-118603?
CVE-2026-118603 is a high-severity vulnerability in Alpine iLX-F511, published on 28 Oct 2026.
Official description
Alpine iLX-F511 vCard Parsing Stack-based Buffer Overflow Remote Code Execution Vulnerability. This vulnerability allows network-adjacent attackers to execute arbitrary code on affected Alpine iLX-F511 devices. User interaction is required to exploit this vulnerability in that the target must connect to a malicious Bluetooth device.
The specific flaw exists within the parsing of vCard data. The issue results from the lack of proper validation of user-supplied data prior to copying it to a fixed-length stack-based buffer. An attacker can leverage this vulnerability to execute code in the context of root. Was ZDI-CAN-29017.
Weakness: CWE-121
Which versions are affected by CVE-2026-118603?
How do I fix CVE-2026-118603?
No fix has been published for CVE-2026-118603 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-118603 being exploited?
There is no known exploitation of CVE-2026-118603 in the wild and no public exploit code.
Sources
Also known as GHSA-557m-98q5-chvg.