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…
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EPSS puts the probability of exploitation in the next 30 days at 17.2%, higher than 97% of all known CVEs. Patch or mitigate before the next change window.
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 3.1
- 9.8 CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 17.19% probability · 97th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-787
- Affected
- asus/rt-ac66u firmware
- Source
- cve@mitre.org
EPSS 17.2% since 27 October 2026; no change recorded yet. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- https://pagedout.institute/download/PagedOut_001_beta1.pdfExploit, Third Party Advisory
- https://www.asus.com/Networking/RTAC66U/HelpDesk_BIOSProduct
- https://pagedout.institute/download/PagedOut_001_beta1.pdfExploit, Third Party Advisory
- https://www.asus.com/Networking/RTAC66U/HelpDesk_BIOSProduct
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.