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CVE-2026-19386

Quick assessment

Affected
ASUS Router
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.

ASUS 路由器模块中存在一个基于栈的缓冲区溢出漏洞。经过身份验证的近端攻击者可通过上传超出预期缓冲区大小的构造配置文件，从而执行任意代码。更多信息请参阅 ASUS 安全公告中的“ASUS 路由器固件安全更新”部分。

CVSS 9.3 · Critical

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2026-19386

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
A stack-based buffer overflow in the ASUS router modules allows an authenticated nearby user to execute arbitrary code via a crafted configuration file upload that exceeds the expected buffer size.Refer to the ' Security Update for ASUS Router Firmware  ' section on the ASUS Security Advisory for more information.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:A/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H
Source: CVE Program / CVE List V5
Vulnerability Type
栈缓冲区溢出
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
ASUS Router 3.0.0.6.102 series -

II. Public POCs for CVE-2026-19386

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III. Intelligence Information for CVE-2026-19386

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Vendor Advisories for CVE-2026-19386 (1)

Same Patch Batch · ASUS · 2026-10-07 · 4 CVEs total

CVE-2026-14911 9.3 CRITICAL 华硕路由器固件跨站脚本漏洞
CVE-2026-16528 8.4 HIGH ASUS路由器日志注入漏洞，泄露DDNS凭据
CVE-2026-19396 7.7 HIGH ASUS RT-BE57路由器PRNG种子可预测漏洞

IV. Related Vulnerabilities

Same product: Router
Same vendor: ASUS
Same weakness: CWE-121

V. Comments for CVE-2026-19386

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