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CRITICAL · 9.8

CVE-2018-8879

Stack-based buffer overflow in Asuswrt-Merlin firmware for ASUS devices older than 384.4 and ASUS firmware before 3.0.0.4.382.50470 for devices allows remote attackers to execute arbitrary code by pro...

Vulnerability Description

Stack-based buffer overflow in Asuswrt-Merlin firmware for ASUS devices older than 384.4 and ASUS firmware before 3.0.0.4.382.50470 for devices allows remote attackers to execute arbitrary code by providing a long string to the blocking.asp page via a GET or POST request. Vulnerable parameters are flag, mac, and cat_id.

CVSS Score

9.8

CRITICAL

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH

Affected Products

VendorProductVersions
AsusRt-Ac66U Firmware< 3.0.0.4.382.50470
AsusRt-Ac66U-

Related Weaknesses (CWE)

CWE-787

References

FAQ

What is CVE-2018-8879?

CVE-2018-8879 is a vulnerability with a CVSS score of 9.8 (CRITICAL). Stack-based buffer overflow in Asuswrt-Merlin firmware for ASUS devices older than 384.4 and ASUS firmware before 3.0.0.4.382.50470 for devices allows remote attackers to execute arbitrary code by pro...

How severe is CVE-2018-8879?

CVE-2018-8879 has been rated CRITICAL with a CVSS base score of 9.8/10. This is considered a critical vulnerability requiring immediate attention.

Is there a patch for CVE-2018-8879?

Check the references section above for vendor advisories and patch information. Affected products include: Asus Rt-Ac66U Firmware, Asus Rt-Ac66U.