CVE-2026-9541

medium

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.

References

https://vuldb.com/vuln/365602/cti

https://vuldb.com/vuln/365602

https://vuldb.com/submit/814826

https://github.com/biniamf/pocs/tree/main/squirrel-sqobject-readobject-neg-len-oob

https://github.com/albertodemichelis/squirrel/issues/327

Details

Source: Mitre, NVD

Published: 2026-05-26

Updated: 2026-05-26

Risk Information

CVSS v2

Base Score: 4.3

Vector: CVSS2#AV:L/AC:L/Au:S/C:P/I:P/A:P

Severity: Medium

CVSS v3

Base Score: 5.3

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

Severity: Medium

CVSS v4

Base Score: 4.8

Vector: 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

Severity: Medium

EPSS

EPSS: 0.00013