How serious is CVE-2026-3391?

This vulnerability has a CVSS score of 4.8 out of 10, classified as MEDIUM severity. Proof-of-concept exploit code is publicly available, making this an active threat.

Is there exploit code available for CVE-2026-3391?

Yes, proof-of-concept exploit code for CVE-2026-3391 is publicly available on GitHub and security research platforms. This increases the risk of active exploitation.

Which products are affected by CVE-2026-3391?

CVE-2026-3391 affects lily-lang lily. Check the full CVE details for specific version information.

How do I fix CVE-2026-3391?

To remediate CVE-2026-3391, check for security patches from lily-lang. Apply all available updates and security patches. If no patch is available, implement recommended workarounds or security controls to mitigate the risk.

CVE-2026-3391

Medium

|4.8

Exploit Available

Plain English Summary

AI-powered analysis for quick understanding

An attacker with local access to the system can exploit a flaw in the lily software to read data outside the intended memory boundaries, potentially exposing sensitive information. This vulnerability requires the attacker to have physical or remote access to the machine where the software is running.

Technical Description

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.

CVSS Vector Analysis

Attack VectorLocal

Attack ComplexityLow

Privileges RequiredLow

User InteractionNone

Confidentiality ImpactHigh

Integrity ImpactHigh

Availability ImpactHigh

ScopeChanged

Vector String

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/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Exploit Resources

Search for proof-of-concept code and exploit modules

GitHub Search Exploit-DB Nuclei Templates Metasploit Vulners

Official References

NIST NVD

Est. Bounty

$638($500-$1K)

Vendor Response

Grade APatched in 2 days

Quick Information

Published

Mar 1, 2026

about 1 month ago

Last Modified

Mar 4, 2026

about 1 month ago

Vendor

lily-lang

Product

lily

Related Vulnerabilities

CVE-2026-3392Medium

This vulnerability allows an attacker to crash the application by causing it to try to access a part of memory that doesn't exist, leading to a program failure. However, the attacker must have local access to the system to exploit this weakness.

CVE-2026-3390Medium

This vulnerability allows an attacker to read sensitive data from memory by exploiting a flaw in the error reporting function of the lily software. However, the attack can only be carried out on a local machine, meaning the attacker must have access to the system where lily is running.