CVE-2018-8879
9.8 · CRITICALOverview
CVE-2018-8879 is a critical-severity vulnerability affecting asus rt-ac66u_firmware. It was published on November 21, 2019 and has a CVSS 3.1 base score of 9.8 (CRITICAL).
This vulnerability has a CVSS 3.1 base score of 9.8, rated CRITICAL. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.
Technical 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.
Remediation
Check the references section for vendor advisories and patches from asus. Update rt-ac66u_firmware to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
Affected Products
| Vendor | Product | Versions | Status |
|---|---|---|---|
| asus | rt-ac66u_firmware | >= 0, < 3.0.0.4.382.50470 | Affected |
Frequently Asked Questions
What is CVE-2018-8879?
CVE-2018-8879 is a critical-severity vulnerability affecting asus rt-ac66u_firmware. It was published on November 21, 2019 and has a CVSS 3.1 base score of 9.8 (CRITICAL).
How severe is CVE-2018-8879?
This vulnerability has a CVSS 3.1 base score of 9.8, rated CRITICAL. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.
How do I fix or remediate CVE-2018-8879?
Check the references section for vendor advisories and patches from asus. Update rt-ac66u_firmware to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
How can CyberStrike help with CVE-2018-8879?
CyberStrike's AI-powered security agents can automatically detect CVE-2018-8879 across your infrastructure using autonomous pentesting, DAST scanning, and HackBrowser. The platform continuously monitors for known vulnerabilities and provides actionable remediation guidance prioritized by real-world exploitability.
How CyberStrike Helps
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