CVE-2018-12551 affects Eclipse Mosquitto versions 1.0 to 1.5.5 when configured with a password file for authentication. Malformed entries in the password file, such as blank lines, are incorrectly interpreted as valid usernames without passwords, allowing unauthenticated access to the broker. This vulnerability carries a CVSS score of 8.1 (HIGH) due to its network-based attack vector, low attack complexity, and high impact on confidentiality, integrity, and availability. There is no evidence of active exploitation, public exploit code, or significant community discussion surrounding this CVE.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
>= 1.0, <= 1.5.5CPE matchmatch criteria | cpe:2.3:a:eclipse:mosquitto:*:*:*:*:*:*:*:* | ||
<= 1.5.5CPE match | cpe:2.3:a:eclipse:mosquitto:*:*:*:*:*:*:*:* |
CVSS version used by this source: 3.0
CVSS:3.0/AV:N/AC:H/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, 0.1 Bluesky, 0.0 Mastodon, and 0.2 GitHub mentions.
No media coverage found for this CVE.
The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.
Remediation records are not available for this CVE.