CRITICAL

CVE-2018-8879

CVSS v3

9.8

CRITICAL

EPSS Score

32.0%

exploit probability

CISA KEV

No

known exploited

Exploitation

SSVC status

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.

Technical details

Published
11/21/2019

Frequently asked questions

What is 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 providing a long string to the blocking.asp page via a GET or POST request. Vulnerable parameters are flag, mac, and cat_id.

Is CVE-2018-8879 actively exploited?

Active exploitation of CVE-2018-8879 has not been confirmed. The EPSS score is 32.0%, indicating the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2018-8879?

CVE-2018-8879 has a CVSS v3 base score of 9.8 (CRITICAL severity).

Is CVE-2018-8879 affecting your environment?

Use isMalicious to check if any of your IPs or domains are associated with this vulnerability's IOCs.