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CVE-2026-2661— Squirrel sqobject.h operator heap-based overflow

Quick assessment

Affected
n/a Squirrel
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

SQUIRREL是Alberto Demichelis开源的编程语言SQUIRREL 3.2稳定版。 SQUIRREL 3.2及之前版本存在安全漏洞，该漏洞源于sqobject.h库中SQObjectPtr::operator函数存在堆缓冲区溢出，可能导致本地攻击。

CVSS 3.3 · Low EPSS 0.23% · P12

Possible ATT&CK Techniques 1 AI

T1203 · Exploitation for Client Execution
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I. Basic Information for CVE-2026-2661

Vulnerability Information
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Vulnerability Title
Squirrel sqobject.h operator heap-based overflow
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L
Source: CVE Program / CVE List V5
Vulnerability Type
堆缓冲区溢出
Source: CVE Program / CVE List V5
Vulnerability Title
SQUIRREL 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
SQUIRREL是Alberto Demichelis开源的编程语言SQUIRREL 3.2稳定版。 SQUIRREL 3.2及之前版本存在安全漏洞，该漏洞源于sqobject.h库中SQObjectPtr::operator函数存在堆缓冲区溢出，可能导致本地攻击。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
- Squirrel 3.0 -

II. Public POCs for CVE-2026-2661

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III. Intelligence Information for CVE-2026-2661

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Same Patch Batch · n/a · 2026-02-18 · 19 CVEs total

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CVE-2025-70141 SourceCodester Customer Support System 安全漏洞
CVE-2025-70063 PHPGurukul Hospital Management System 安全漏洞
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CVE-2025-70998 UTT HiPER 810 安全漏洞
CVE-2025-65791 ZoneMinder 安全漏洞
CVE-2025-65519 ezBookkeeping 安全漏洞
CVE-2025-70146 Projectworlds Online Time Table Generator 安全漏洞
CVE-2025-70062 PHPGurukul Hospital Management System 安全漏洞

IV. Related Vulnerabilities

Same product: Squirrel
Same vendor: n/a
Same weakness: CWE-122

V. Comments for CVE-2026-2661

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