CVE-2017-5419 is a denial-of-service vulnerability affecting Mozilla Firefox and Thunderbird versions prior to 52. A malicious website can repeatedly trigger modal authentication prompts, leading to a non-responsive browser UI that requires a forced shutdown. This high-severity vulnerability (CVSS 7.5) is network-exploitable with low complexity, requiring no user interaction, and primarily impacts availability. There is no evidence of active exploitation, publicly available exploit code, or significant community discussion surrounding this CVE.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
< 52.0CPE matchmatch criteria | cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:* | ||
< 52.0CPE matchmatch criteria | cpe:2.3:a:mozilla:thunderbird:*:*:*:*:*:*:*:* |
CVSS version used by this source: 3.0
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
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.