CVE-2026-9541

Squirrel Cnut File sqobject.cpp ReadObject heap-based overflow

MEDIUM
5.3
CVSS Score
Published: May 26, 2026 at 11:45 AM UTC
Updated: July 23, 2026 at 07:32 PM UTC
1 product affected across 1 vendorSquirrel

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Severity
MEDIUM5.3
Exploit prediction
EPSS 0.2%
SSVC
PoC

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

References (5)

VDB EntryTechnical DescriptionThird Party Advisory
Source: cverecord
https://vuldb.com/vuln/365602
SignaturePermissions RequiredVDB Entry
Source: cverecord
https://vuldb.com/vuln/365602/cti
Third Party AdvisoryExploitVDB Entry
Source: cverecord
https://vuldb.com/submit/814826
Issue TrackingExploitMitigationPatch
Source: cverecord
https://github.com/albertodemichelis/squirrel/issues/327

SSVC — Action Prioritization

SSVCPoCNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

5.3MEDIUMVulDB
Vector?

Quick Info

StatusANALYZED
CWE
CWE-122CWE-119

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