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.
“unsupported-when-assigned.” ASUS FA507NU 和 FA507NV BIOS 中 SmiFlash SMM 模块存在一个越界写入漏洞。该漏洞允许本地管理员通过构造一个长度值过大的软件 SMI（SW SMI）请求，导致系统崩溃（蓝屏死机，BSOD）或 BIOS 损坏。更多信息请参考华硕安全公告中的“ASUS FA507NV / FA507NU BIOS 安全更新”部分。
Possible ATT&CK Techniques 1 AI
T1200 · Hardware Additions
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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
“unsupported-when-assigned.” 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
Affected Products
II. Public POCs for CVE-2026-19398
| # | POC Description | Source Link | Shenlong Link |
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AI-Generated POC
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Vendor Advisories for CVE-2026-19398 (1)
IV. Related Vulnerabilities
V. Comments for CVE-2026-19398
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