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CVE-2026-19398

Quick assessment

Affected
ASUS FA507NV
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 FA507NU是中国ASUS公司的一款笔记本电脑。 ASUS FA507NU BIOS 318版本和ASUS FA507NV BIOS 318版本存在缓冲区错误漏洞，该漏洞源于SmiFlash SMM模块存在越界写入，可能允许本地管理员通过带有超大长度值的特制软件SMI请求导致系统崩溃（BSOD）或BIOS损坏。

CVSS 6.8 · Medium EPSS 0.11% · P1

Possible ATT&CK Techniques 1 AI

T1200 · Hardware Additions

Affected Version Matrix 2

VendorProduct Version RangeStatus
ASUS FA507NU 318 affected
ASUS FA507NV 318 affected
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I. Basic Information for CVE-2026-19398

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
An out-of-bounds write in the SmiFlash SMM module of ASUS FA507NU and FA507NV BIOS allows a local  administrator to cause a system crash (BSOD) or BIOS corruption via a crafted software SMI (SW SMI) request with an oversized length value.Refer to the '  Security Update for ASUS FA507NV / FA507NU BIOS   ' section on the ASUS Security Advisory for more information.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:L/AC:L/AT:N/PR:H/UI:N/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N
Source: CVE Program / CVE List V5
Vulnerability Type
跨界内存写
Source: CVE Program / CVE List V5
Vulnerability Title
ASUS FA507NU 缓冲区错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
ASUS FA507NU是中国ASUS公司的一款笔记本电脑。 ASUS FA507NU BIOS 318版本和ASUS FA507NV BIOS 318版本存在缓冲区错误漏洞，该漏洞源于SmiFlash SMM模块存在越界写入，可能允许本地管理员通过带有超大长度值的特制软件SMI请求导致系统崩溃（BSOD）或BIOS损坏。
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
ASUS FA507NV 318 -
ASUS FA507NU 318 -

II. Public POCs for CVE-2026-19398

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III. Intelligence Information for CVE-2026-19398

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Vendor Advisories for CVE-2026-19398 (1)

IV. Related Vulnerabilities

Same vendor: ASUS
Same weakness: CWE-787

V. Comments for CVE-2026-19398

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