CVE-2018-18320 describes a critical remote code execution vulnerability in the Merlin.PHP component (version 0.6.6) designed for Asuswrt-Merlin devices, stemming from an insecure popen call in exec.php. With a CVSS score of 9.8, this vulnerability allows unauthenticated attackers to execute arbitrary commands over the network with low attack complexity, leading to complete compromise of confidentiality, integrity, and availability. While the vendor states Merlin.PHP is for trusted intranets, its critical severity and high EPSS score indicate significant risk. There is no evidence of active exploitation, nor are there public exploits in Metasploit or ExploitDB, but the vulnerability has garnered considerable community discussion.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
<= 380.70CPE matchmatch criteria | cpe:2.3:o:asuswrt-merlin_project:rt-ac5300_firmware:*:*:*:*:*:*:*:* | ||
<= 380.70CPE matchmatch criteria | cpe:2.3:o:asuswrt-merlin_project:rt_ac1900p_firmware:*:*:*:*:*:*:*:* | ||
<= 380.70CPE matchmatch criteria | cpe:2.3:o:asuswrt-merlin_project:rt-ac68u_firmware:*:*:*:*:*:*:*:* | ||
<= 380.70CPE matchmatch criteria | cpe:2.3:o:asuswrt-merlin_project:rt-ac68p_firmware:*:*:*:*:*:*:*:* | ||
<= 380.70CPE matchmatch criteria | cpe:2.3:o:asuswrt-merlin_project:rt-ac88u_firmware:*:*:*:*:*:*:*:* |
CVSS version used by this source: 3.0
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.
No media coverage found for this CVE.
The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.
Remediation records are not available for this CVE.