CVE-2018-18556 is a critical privilege escalation vulnerability affecting VyOS 1.1.8. It allows an authenticated operator user to gain root privileges due to improper input validation in the pppd binary, which is executable with elevated permissions by default. The vulnerability has a CVSS score of 9.9 (CRITICAL) and can be exploited remotely with low complexity, leading to complete compromise of confidentiality, integrity, and availability. While not currently listed on the KEV catalog, a Metasploit module exists for exploitation, indicating readily available exploit code, though community discussion and media coverage are minimal.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
1.1.8CPE matchmatch criteria | cpe:2.3:o:vyos:vyos:1.1.8:*:*:*:*:*:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 1.0 Bluesky, 0.5 Mastodon, and 1.6 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.