CVE-2026-9541

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.

CVSS v3 5.3 MEDIUM
CVSS v2.0 4.3 MEDIUM

5.3^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 1.8 / Impact : 3.4

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact LOW

Integrity Impact LOW

Availability Impact LOW

Scope UNCHANGED

4.3^/10

CVSS v2.0 : MEDIUM

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

Exploitability : 3.1 / Impact : 6.4

Access Vector LOCAL

Access Complexity LOW

Authentication SINGLE

Confidentiality Impact PARTIAL

Integrity Impact PARTIAL

Availability Impact PARTIAL

References

Link	Resource
https://github.com/albertodemichelis/squirrel/issues/327	Exploit Issue Tracking Mitigation Patch
https://github.com/biniamf/pocs/tree/main/squirrel-sqobject-readobject-neg-len-oob	Exploit
https://vuldb.com/submit/814826	Exploit Third Party Advisory VDB Entry
https://vuldb.com/vuln/365602	Third Party Advisory VDB Entry
https://vuldb.com/vuln/365602/cti	Permissions Required VDB Entry
https://github.com/albertodemichelis/squirrel/issues/327	Exploit Issue Tracking Mitigation Patch

Configurations

Configuration 1 (hide)

cpe:2.3:a:squirrel-lang:squirrel:*:*:*:*:*:*:*:*

History

No history.

Information

Published : 2026-05-26 14:16

Updated : 2026-07-23 11:10

NVD link : CVE-2026-9541

Mitre link : CVE-2026-9541

CVE.ORG link : CVE-2026-9541

JSON object : View

Products Affected

squirrel-lang

squirrel

CWE

CWE-119

Improper Restriction of Operations within the Bounds of a Memory Buffer

CWE-122

Heap-based Buffer Overflow

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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."}, {"lang": "es", "value": "Una falla de seguridad ha sido descubierta en Squirrel hasta la versi\u00f3n 3.2. Afectada es la funci\u00f3n ReadObject del archivo squirrel/sqobject.cpp del componente Cnut File Gestor. Realizar una manipulaci\u00f3n resulta en desbordamiento de b\u00fafer basado en mont\u00edculo. El ataque solo es posible con acceso local. El exploit ha sido publicado al p\u00fablico y puede ser utilizado para ataques. El proyecto fue informado del problema con antelaci\u00f3n a trav\u00e9s de un informe de incidencias, pero a\u00fan no ha respondido."}], "lastModified": "2026-07-23T11:10:00.120", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:squirrel-lang:squirrel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "DDA9B279-8931-4C68-9500-534EAB17584C", "versionEndIncluding": "3.2"}], "operator": "OR"}]}], "sourceIdentifier": "cna@vuldb.com"}