CVE-2026-2661

Name: CVE-2026-2661
Creator: NVD / NIST
Published: 2026-02-18T20:18:36.377+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

LOWCVSS 1.9/10EPSS 0.24%

Last modified Jun 17, 2026

CVE-2026-2661 is a low-severity vulnerability rated 1.9/10 on the CVSS scale. A security flaw has been discovered in Squirrel up to 3.2. This affects the function SQObjectPtr::operator in the library squirrel/sqobject.h. EPSS estimates a 0.24% chance of exploitation in the next 30 days.

Description

A security flaw has been discovered in Squirrel up to 3.2. This affects the function SQObjectPtr::operator in the library squirrel/sqobject.h. The manipulation results in heap-based buffer overflow. The attack needs to be approached locally. 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.

Metrics

CVSS 3.1

7.8/10

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

0.24%

14.4th 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/310Exploit, Issue Tracking
https://github.com/oneafter/0122/blob/main/i310/reproExploit
https://vuldb.com/?ctiid.346459Permissions Required, VDB Entry
https://vuldb.com/?id.346459Third Party Advisory, VDB Entry
https://vuldb.com/?submit.753165Third Party Advisory, VDB Entry

Timeline

Published: Feb 18, 2026
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2026-2661?

How severe is CVE-2026-2661?

CVE-2026-2661 has a CVSS score of 1.9/10 (LOW severity). The EPSS model estimates a 0.24% probability of exploitation in the next 30 days.

How do I fix CVE-2026-2661?

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-2026-2661?

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

Scan your code now

Source: NVD / NIST