What’s Vulnerable › Vulnerabilities

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

• Severity: medium (CVSS 5.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2026-03-01 · updated 2026-06-17
• Weakness: CWE-119

Description

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.

Affected products

• FascinatedBox lily: through 2.3

References

• https://github.com/FascinatedBox/lily/
• https://github.com/FascinatedBox/lily/issues/382
• https://github.com/oneafter/0122/blob/main/i382/repro.lily
• https://vuldb.com/?ctiid.348276
• https://vuldb.com/?id.348276
• https://vuldb.com/?submit.761326

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