Is there a public exploit for CVE-2026-118603?

No public exploit for CVE-2026-118603 was found in Exploit-DB, Metasploit, Nuclei templates or public proof-of-concept repositories. That is an absence of evidence rather than proof that none exists.

How severe is CVE-2026-118603?

CVE-2026-118603 scores CVSS 8 (v3.0), rated high.

8.0 High

Alpine iLX-F511 vCard Parsing Stack-based Buffer Overflow Remote Code Execution Vulnerability.

CVE-2026-118603

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.

Assessment

CVSS: 8 (v3.0)
Severity: High
Known exploited: Not listed in CISA KEV
Exploit availability: Nothing found in Exploit-DB, Metasploit, Nuclei or public PoC repositories
Published: 28 October 2026
Last updated: 29 October 2026
Weakness: CWE-121
Assigner: zdi-disclosures@trendmicro.com

CVSS vectorCVSS:3.0/AV:A/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

At the source

References

https://www.zerodayinitiative.com/advisories/ZDI-26-821/

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