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CVE-2026-86315

Quick assessment

Affected
Samsung Opensource Escargot
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.

在 Linux x86-64 平台上，三星开源项目 Escargot 中存在一个由数值截断导致的越界写入漏洞。能够执行 JavaScript 的攻击者可以通过构造一个类定义来利用该漏洞，该定义的实例初始化条目数量超过 UINT16_MAX，从而破坏原生内存并导致宿主进程崩溃。 受影响的 Escargot 版本：commit hash 5dc93606abd42b859045add05d704a038e197359。

CVSS 6.2 · Medium

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2026-86315

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
An out-of-bounds write caused by numeric truncation Samsung Open Source Escargot on Linux x86-64 allows an attacker who can supply JavaScript for execution to corrupt native memory and crash the host process via a crafted class definition whose instance initialization entry count exceeds UINT16_MAX. This issue affects Escargot: 5dc93606abd42b859045add05d704a038e197359.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
数值截断错误
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
Samsung Opensource Escargot 5dc93606abd42b859045add05d704a038e197359 -

II. Public POCs for CVE-2026-86315

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III. Intelligence Information for CVE-2026-86315

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Same Patch Batch · Samsung Opensource · 2026-09-07 · 3 CVEs total

CVE-2026-86313 7.8 HIGH 三星Walrus缓冲区溢出漏洞
CVE-2026-86314 6.2 MEDIUM Samsung Walrus整数溢出导致拒绝服务

IV. Related Vulnerabilities

Same product: Escargot
Same vendor: Samsung Opensource
Same weakness: CWE-197

V. Comments for CVE-2026-86315

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