How severe is CVE-2026-3390?

CVE-2026-3390 has a CVSS 3.x base score of 3.3, rated low severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability low.

Is CVE-2026-3390 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (6th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-3390?

CVE-2026-3390 affects Lily-lang Lily. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-3390?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

Does CVE-2026-3390 have an EU (EUVD) identifier?

Yes. CVE-2026-3390 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-9125.

When was CVE-2026-3390 published?

CVE-2026-3390 was published on 2026-03-01 and last updated on 2026-06-17.

CVE-2026-3390

CVE-2026-3390 is a low-severity vulnerability in Lily-lang Lily with a CVSS 3.x base score of 3.3. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-125.

Key facts

Severity: Low (CVSS 3.x base score 3.3)
CVSS v2: 1.7
CVSS v4: 1.9
EPSS exploit prediction: 0% (6th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-9125
Weakness: CWE-125
Affected product: Lily-lang Lily
Published: 2026-03-01
Last modified: 2026-06-17

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.

Frequently asked questions

What is CVE-2026-3390?: 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.
How severe is CVE-2026-3390?: CVE-2026-3390 has a CVSS 3.x base score of 3.3, rated low severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability low.
Is CVE-2026-3390 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (6th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-3390?: CVE-2026-3390 affects Lily-lang Lily. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-3390?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2026-3390 have an EU (EUVD) identifier?: Yes. CVE-2026-3390 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-9125.
When was CVE-2026-3390 published?: CVE-2026-3390 was published on 2026-03-01 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:lily-lang:lily:*:*:*:*:*:*:*:*

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