CVE-2018-8879

Public Exploit

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.

Category

9.8
CVSS
Severity: Critical
CVSS 3.1 •
CVSS 2.0 •
EPSS 30.26% Top 5%
Third-Party Advisory pagedout.institute
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
https://www.asus.com/Networking/RTAC66U/HelpDesk_BIOS product
https://pagedout.institute/download/PagedOut_001_beta1.pdf third party advisory exploit

Frequently Asked Questions

What is the severity of CVE-2018-8879?
CVE-2018-8879 has been scored as a critical severity vulnerability.
How to fix CVE-2018-8879?
To fix CVE-2018-8879, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2018-8879 being actively exploited in the wild?
It is possible that CVE-2018-8879 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~30% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
This platform uses data from the NIST NVD, MITRE CVE, MITRE CWE, First.org and CISA KEV but is not endorsed or certified by these entities. CVE is a registred trademark of the MITRE Corporation and the authoritative source of CVE content is MITRE's CVE web site. CWE is a registred trademark of the MITRE Corporation and the authoritative source of CWE content is MITRE's CWE web site.
© 2025 Under My Watch. All Rights Reserved.