Buffer overflow in Fascinatedbox Lily
CVE-2026-3391
A security flaw has been discovered in FascinatedBox lily up to 2.3. Impacted is the function clear_storages of the file src/lily_emitter.c. The manipulation results in out-of-bounds read. The attack is only possible with local access. The exploit has been released to the public and may be used for attacks. The project was informed of the problem early through an issue report but has not responded yet.
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 3.3 (Low). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L.
EPSS exploit prediction
EPSS: 0.002 (8.2th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 8th percentile — 8.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.002 · newest: 0.002 · change: -0.000
Affected products
- Fascinatedbox Lily — versions 2.0, 2.1, 2.2
- Lily-Lang Lily
Weakness classification (CWE)
References
- vuldb.com/ (technical-description, VDB Entry, Third Party Advisory, vdb-entry)
- vuldb.com/ (signature, Permissions Required, permissions-required, VDB Entry)
- vuldb.com/ (VDB Entry, Third Party Advisory, third-party-advisory)
- github.com/FascinatedBox/lily/issues/383 (issue-tracking, Exploit, Issue Tracking, Vendor Advisory)
- github.com/oneafter/0122/blob/main/i383/repro.lily (Exploit, exploit)
- github.com/FascinatedBox/lily/ (Product, product)
Frequently asked questions
- What is CVE-2026-3391?
- CVE-2026-3391 is a low-severity vulnerability in Fascinatedbox Lily, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 3.3/10. Published 2026-03-01.
- How severe is CVE-2026-3391?
- Low severity. CVSS v3 base score is 3.3 out of 10.