Public vulnerability disclosure

CVE-2026-84730

CVE-2026-84730

publishedCWE-121

Stack-based buffer overflow in certain ASUS Router firmware allows an unauthenticated nearby attacker to execute arbitrary commands with root privileges via a crafted device name. Refer to the ' Security Update for ASUS Router AiCloud Feature ' section on the ASUS Security Advisory for more information.

Technical severity8.7 highCVSS 4.0 · CNA: ASUS
Published2026-11-04Source updated 2026-11-05
Collected2026-11-053 attributed sources

Fixes and workarounds

No remediation reported in collected sources.

Missing remediation information is not evidence that no patch exists.

Affected products and versions

Affected products, source version ranges and reporting authorities
ProductVersionsAuthority
Router firmware
ASUS
ASUSWRT 3.0.0.4_386 series (affected, custom)
ASUSWRT 3.0.0.4_388 series (affected)
ASUSWRT 3.0.0.6_102 series (affected)
Other versions: unaffected
CNA: ASUS

Version ranges are source assertions. Check the vendor advisory and your installed configuration before determining exposure.

CVSS assessments

CVSS scores, vectors and reporting authorities
Version / scoreVectorAuthority
4.0 / 8.7
high
CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:NCNA: ASUS
4.0 / 8.7
high
CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:XNVD: 54bf65a7-a193-42d2-b1ba-8e150d3c35e1

Exploit evidence

No exploit evidence in collected sources. This is not proof of no exploitation.

References

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