Out-of-Bounds Read Vulnerability in FascinatedBox Lily Software
CVE-2026-3391

4.8MEDIUM

Key Information:

Vendor

Fascinatedbox

Status
Lily
Vendor
CVE Published:
1 March 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-3391?

A significant security flaw was identified in the FascinatedBox Lily software, specifically in the clear_storages function within the file src/lily_emitter.c. This vulnerability enables an out-of-bounds read, which could allow malicious actors, with local access, to manipulate affected systems. The exploit has been publicly released, increasing the urgency for users to address this issue. Despite early notification to the project maintainers via an issue report, there has been no response or patch release to mitigate the risk posed by this vulnerability.

Affected Version(s)

lily 2.0

lily 2.1

lily 2.2

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

CVE-2026-3391 - Proof of Concept

References

https://vuldb.com/?id.348277
vdb-entrytechnical-description
https://vuldb.com/?ctiid.348277
signaturepermissions-required
https://vuldb.com/?submit.761327
third-party-advisory

CVSS V4

Score:
4.8
Severity:
MEDIUM
Confidentiality:
None
Integrity:
None
Availability:
Low
Attack Vector:
Local
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

Oneafter (VulDB User)
.