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CVE-2026-88781

Quick assessment

Affected
ASUS motherboards firmware
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.

华硕某些主板的固件中存在不可信指针解引用漏洞。该漏洞允许拥有内核级权限的用户通过 I/O 命令传入任意内存地址，进而导致系统信息被篡改或引发系统崩溃。 有关详细信息，请参阅华硕安全公告中的“多个华硕主板安全更新”部分。

CVSS 6.8 · Medium
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I. Basic Information for CVE-2026-88781

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
Untrusted Pointer Dereference in ASUS certain motherboards firmware allows a kernel-level privileges user can supply an arbitrary memory address via an I/O command, leading to subsequent system information being tampered with or causing a system crash. Refer to the 'Security Update for Multiple ASUS Motherboards' 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
非可信指针解引用
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
ASUS motherboards firmware A520/B550 series Before 3644 4304 -

II. Public POCs for CVE-2026-88781

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III. Intelligence Information for CVE-2026-88781

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Vendor Advisories for CVE-2026-88781 (1)

IV. Related Vulnerabilities

Same vendor: ASUS
Same weakness: CWE-822