TI-2026-84915 Aliases CVE-2026-84729 GHSA-8c6h-7x8q-7929

Out-of-bounds write in ASUS Router firmware allows memory corruption

LOW 31CWE-787Published 2026-11-04 · Updated 2026-11-04

Key facts

Attack vector: Adjacent network
Privileges required: None
User interaction: None
Attack complexity: Low
Attack requirements: None
Impact type: —
Confidentiality · integrity · availability: None · High · High
Fix status: No fix listed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA.

Summary

ASUS Router firmware from the ASUSWRT 3.0.0.4_386 series, 3.0.0.4_388 series and 3.0.0.6_102 series is affected. An out-of-bounds write (CWE-787) lets the firmware write data beyond the intended buffer. A nearby unauthenticated attacker can send a crafted packet to write past the buffer or potentially cause a denial of service.

Written with Claude Haiku 5.5 from the sources below · 2026-11-04

Description from the CNA

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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.00166 5th percentileScored 2026-11-07

Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: None
Automatable: No
Technical impact: Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
ASUS	Router firmware	ASUSWRT 3.0.0.4_386 series; ASUSWRT 3.0.0.4_388 series; ASUSWRT 3.0.0.6_102 series	—	No fix listed	CNA

Router firmware VendorASUS Affected ASUSWRT 3.0.0.4_386 series; ASUSWRT 3.0.0.4_388 series; ASUSWRT 3.0.0.6_102 series Fixed in — No fix listed CNA

Remediation

The sources list no fixed version for ASUS Router firmware.

Written with Claude Haiku 5.5 from the sources below · 2026-11-04

Timeline

2026-11-04 Threatist record created from CVE-2026-84729
2026-11-04 Alias added: GHSA-8c6h-7x8q-7929
2026-11-04 CISA SSVC decision points changed
2026-11-04 Priority changed: MEDIUM → LOW

References

Other 1

https://www.asus.com/security-advisory

TI-2021-12008 The administrator application on ASUS GT-AC2900 devices before 3.0.0.4.386.42643 and Lyra… KEVCVSS 3.1CRITICAL 9.8
TI-2025-36933 "UNSUPPORTED WHEN ASSIGNED" Certain versions of the ASUS Live Update client were… KEVCVSS 4.0CRITICAL 9.3
TI-2023-20780 OS command injection in ASUS RT-AX55 KEVCVSS 3.1HIGH 8.8
TI-2018-04367 An issue was discovered in AsusWRT before 3.0.0.4.384_10007. CVSS 3.0CRITICAL 9.8
TI-2018-04368 An issue was discovered in AsusWRT before 3.0.0.4.384_10007. CVSS 3.0CRITICAL 9.8
TI-2014-07780 common.c in infosvr in ASUS WRT firmware 3.0.0.4.376_1071, 3.0.0.376.2524-g0013f52, and… CVSS 2.0HIGH 10.0

See all 365 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences