CVE-2026-3390 MEDIUM

CVE-2026-3390: FascinatedBox lily Error Reporting lily_build_error.c patch_line_end out-of-bounds

Vendor Fascinatedbox
Product lily
Weakness CWE-125
Published March 1, 2026
Last update March 2, 2026

CVSS base score

4.8/10
Attack vector Local
Attack complexity Low
Privileges required Low
User interaction None
Confidentiality
Integrity

CVSS vector

CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P

What the vulnerability does

01Description

A vulnerability was identified in FascinatedBox lily up to 2.3. This issue affects the function patch_line_end of the file src/lily_build_error.c of the component Error Reporting. The manipulation leads to out-of-bounds read. The attack can only be performed from a local environment. The exploit is publicly available and might be used. The project was informed of the problem early through an issue report but has not responded yet.

Key dates

02Disclosure timeline

March 1, 2026 CVE published
March 2, 2026 Record updated