CVE-2026-84729

Quick assessment

Affected

ASUS Router 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.

某些华硕（ASUS）路由器固件中存在越界写入漏洞，使得未经身份验证的邻近攻击者能够向目标缓冲区之外写入数据，或可能通过构造恶意数据包引发拒绝服务（DoS）攻击。有关更多信息，请参阅华硕安全公告中的“华硕路由器固件安全更新”部分。

CVSS 7.2 · High Updated Nov 04, 2026

Possible ATT&CK Techniques 2 AI

T1499 · Endpoint Denial of Service T1190 · Exploit Public-Facing Application

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Vulnerability Information

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Vulnerability Title

N/A

Source: CVE Program / CVE List V5

Vulnerability Description

Out-of-bounds write in certain ASUS Router firmware allow an unauthenticated nearby attacker to write data beyond the intended buffer or potentially cause a denial-of-service (DoS) via a crafted packet. 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:N/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

Vendor	Product	Affected Versions	CPE	Subscribe
ASUS	Router firmware	ASUSWRT 3.0.0.4_386 series	-

II. Public POCs for CVE-2026-84729

#	POC Description	Source Link	Shenlong Link

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No public POC found.

III. Intelligence Information for CVE-2026-84729

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Vendor Advisories for CVE-2026-84729 (1)

🔗 ASUS Security Advisory | Latest Vulnerability Update Read full article

https://www.cve.org/CVERecord?id=CVE-2026-84729

Same Patch Batch · ASUS · 2026-11-04 · 4 CVEs total

CVE-2026-84730	8.7 HIGH	ASUS 路由器固件堆栈缓冲区溢出漏洞
CVE-2026-112116	8.5 HIGH	ASUS System Control Interface 任意物理内存读写漏洞
CVE-2026-110464	6.9 MEDIUM	ASUS Armoury Crate 任意版本本地提权与拒绝服务漏洞

IV. Related Vulnerabilities

Same product: Router firmware

Same vendor: ASUS

Same weakness: CWE-787