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CVE-2026-84729

HIGHCVSS 7.2/10EPSS 0.17%

Last modified

CVE-2026-84729 is a high-severity vulnerability rated 7.2/10 on the CVSS scale. 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.. EPSS estimates a 0.17% chance of exploitation in the next 30 days.

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.

Metrics

CVSS 4.0
7.2/10

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/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:X

EPSS Probability
0.17%

5.9th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Source: CNA advisory (CVE.org). NVD analysis pending.

VendorProductVersions
ASUSRouter firmwareASUSWRT 3.0.0.4_386 series; ASUSWRT 3.0.0.4_388 series; ASUSWRT 3.0.0.6_102 series

References

Timeline

Published
Last Modified
Status
Received

Frequently Asked Questions

What is CVE-2026-84729?
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.
How severe is CVE-2026-84729?
CVE-2026-84729 has a CVSS score of 7.2/10 (HIGH severity). The EPSS model estimates a 0.17% probability of exploitation in the next 30 days.
How do I fix CVE-2026-84729?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

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Source: NVD / NIST