CVE-2026-3386

Name: CVE-2026-3386
Creator: NVD / NIST
Published: 2026-03-01T09:15:58.147+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

LOWCVSS 1.9/10EPSS 0.17%

Last modified Jun 17, 2026

CVE-2026-3386 is a low-severity vulnerability rated 1.9/10 on the CVSS scale. A flaw has been found in wren-lang wren up to 0.4.0. Affected by this vulnerability is the function emitOp of the file src/vm/wren_compiler.c. EPSS estimates a 0.17% chance of exploitation in the next 30 days.

Description

A flaw has been found in wren-lang wren up to 0.4.0. Affected by this vulnerability is the function emitOp of the file src/vm/wren_compiler.c. This manipulation causes out-of-bounds read. It is possible to launch the attack on the local host. The exploit has been published and may be used. The project was informed of the problem early through an issue report but has not responded yet.

Metrics

CVSS 3.1

7.1/10

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H

CVSS 4.0

1.9/10

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

EPSS Probability

0.17%

6.7th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Wren	Wren	<= 0.4.0

References

https://github.com/oneafter/0122/blob/main/i1219/reproExploit
https://github.com/wren-lang/wren/Product
https://github.com/wren-lang/wren/issues/1219Exploit, Issue Tracking, Vendor Advisory
https://vuldb.com/?ctiid.348272Permissions Required, VDB Entry
https://vuldb.com/?id.348272Third Party Advisory, VDB Entry
https://vuldb.com/?submit.761306Third Party Advisory, VDB Entry

Timeline

Published: Mar 1, 2026
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2026-3386?

How severe is CVE-2026-3386?

CVE-2026-3386 has a CVSS score of 1.9/10 (LOW severity). The EPSS model estimates a 0.17% probability of exploitation in the next 30 days.

How do I fix CVE-2026-3386?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2026-3386?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST