CVE-2026-3389

Name: CVE-2026-3389
Creator: NVD / NIST
Published: 2026-03-01T10:16:01.363+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

LOWCVSS 1.9/10EPSS 0.17%

Last modified Jun 17, 2026

CVE-2026-3389 is a low-severity vulnerability rated 1.9/10 on the CVSS scale. A vulnerability was determined in Squirrel up to 3.2. This vulnerability affects the function sqstd_rex_newnode in the library sqstdlib/sqstdrex.cpp. EPSS estimates a 0.17% chance of exploitation in the next 30 days.

Description

A vulnerability was determined in Squirrel up to 3.2. This vulnerability affects the function sqstd_rex_newnode in the library sqstdlib/sqstdrex.cpp. Executing a manipulation can lead to null pointer dereference. The attack can only be executed locally. The exploit has been publicly disclosed and may be utilized. The project was informed of the problem early through an issue report but has not responded yet.

Metrics

CVSS 3.1

5.5/10

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/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%

6.1th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Squirrel-Lang	Squirrel	<= 3.2

References

https://github.com/albertodemichelis/squirrel/issues/314Exploit, Issue Tracking, Vendor Advisory
https://github.com/oneafter/0122/blob/main/i314/reproExploit
https://vuldb.com/?ctiid.348275Permissions Required, VDB Entry
https://vuldb.com/?id.348275Third Party Advisory, VDB Entry
https://vuldb.com/?submit.761315Third Party Advisory, VDB Entry

Timeline

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

Frequently Asked Questions

What is CVE-2026-3389?

How severe is CVE-2026-3389?

CVE-2026-3389 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-2026-3389?

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-2026-3389?

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

Scan your code now

Source: NVD / NIST