CVE-2019-11842 describes a critical vulnerability in Matrix Sydent (before 1.0.3) and Synapse (before 0.99.3.1) where mishandled random number generation allows attackers to predict authentication tokens or random IDs. This vulnerability carries a high CVSS score of 7.5, indicating a network-based attack with low complexity, requiring no privileges or user interaction, and leading to high confidentiality impact. Despite its severity, there is no evidence of active exploitation, public exploit code, or significant community discussion, suggesting a low current threat landscape.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
< 1.0.3CPE matchmatch criteria | cpe:2.3:a:matrix:sydent:*:*:*:*:*:*:*:* | ||
< 0.99.3.1CPE matchmatch criteria | cpe:2.3:a:matrix:synapse:*:*:*:*:*:*:*:* |
CVSS version used by this source: 3.0
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 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.