Out-of-Bounds Read Vulnerability in FascinatedBox Lily by FascinatedBox
CVE-2026-2662

4.8MEDIUM

Key Information:

Vendor

Fascinatedbox

Status
Lily
Vendor
CVE Published:
18 February 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-2662?

A vulnerability has been detected in FascinatedBox's Lily, specifically in the function count_transforms in the file src/lily_emitter.c. This issue leads to an out-of-bounds read, which could be exploited locally. While the exploit has been made public, the developers of FascinatedBox have yet to address this issue, despite being notified early through an issue report. Users of Lily are urged to take precautionary measures until a patch is implemented.

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-2026-2662 - Proof of Concept

References

https://vuldb.com/?id.346460
vdb-entrytechnical-description
https://vuldb.com/?ctiid.346460
signaturepermissions-required
https://vuldb.com/?submit.753166
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)
.