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CVE-2026-2659— Squirrel sqfuncstate.cpp PopTarget out-of-bounds

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是编程语言SQUIRREL 3.2稳定版。 Squirrel 3.2及之前版本存在缓冲区错误漏洞，该漏洞源于对参数_target_stack的操作不当，可能导致越界读取。

CVSS 3.3 · Low EPSS 0.21% · P10
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I. Basic Information for CVE-2026-2659

Vulnerability Information
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Vulnerability Title
Squirrel sqfuncstate.cpp PopTarget out-of-bounds
Source: CVE Program / CVE List V5
Vulnerability Description
A vulnerability was determined in Squirrel up to 3.2. Affected by this vulnerability is the function SQFuncState::PopTarget of the file src/squirrel/squirrel/sqfuncstate.cpp. Executing a manipulation of the argument _target_stack can lead to out-of-bounds read. It is possible to launch the attack on the local host. The exploit has been publicly disclosed and may be utilized. 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
跨界内存读
Source: CVE Program / CVE List V5
Vulnerability Title
SQUIRREL 缓冲区错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
SQUIRREL是编程语言SQUIRREL 3.2稳定版。 Squirrel 3.2及之前版本存在缓冲区错误漏洞，该漏洞源于对参数_target_stack的操作不当，可能导致越界读取。
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-2026-2659

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III. Intelligence Information for CVE-2026-2659

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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
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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-125

V. Comments for CVE-2026-2659

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