CVE-2026-9541

Name: CVE-2026-9541
Creator: NVD / NIST
Published: 2026-05-26T14:16:46.007+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

LOWCVSS 1.9/10EPSS 0.17%

Last modified Jun 17, 2026

CVE-2026-9541 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. Impacted is the function ReadObject of the file squirrel/sqobject.cpp of the component Cnut File Handler. EPSS estimates a 0.17% chance of exploitation in the next 30 days.

Description

A security flaw has been discovered in Squirrel up to 3.2. Impacted is the function ReadObject of the file squirrel/sqobject.cpp of the component Cnut File Handler. Performing a manipulation results in heap-based buffer overflow. 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.

Metrics

CVSS 3.1

5.3/10

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

CVSS 4.0

1.9/10

CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/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%

6.6th 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/327Exploit, Issue Tracking, Mitigation, Patch
https://github.com/biniamf/pocs/tree/main/squirrel-sqobject-readobject-neg-len-oobExploit
https://vuldb.com/submit/814826Exploit, Third Party Advisory, VDB Entry
https://vuldb.com/vuln/365602Third Party Advisory, VDB Entry
https://vuldb.com/vuln/365602/ctiPermissions Required, VDB Entry
https://github.com/albertodemichelis/squirrel/issues/327Exploit, Issue Tracking, Mitigation, Patch

Timeline

Published: May 26, 2026
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2026-9541?

How severe is CVE-2026-9541?

CVE-2026-9541 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-2026-9541?

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-2026-9541?

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

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Source: NVD / NIST