CVE-2016-1966 is a critical vulnerability in Mozilla Firefox (versions prior to 45.0 and Firefox ESR 38.x prior to 38.7) that allows remote attackers to execute arbitrary code or cause a denial of service through a crafted NPAPI plugin. With a CVSS score of 8.8 (High), it can be exploited over the network with low attack complexity, requiring user interaction, and potentially leading to high impact on confidentiality, integrity, and availability. While not listed on CISA's KEV catalog, its EPSS score suggests a low probability of exploitation, and there is no public exploit code available in Metasploit or ExploitDB. Community discussion and media coverage are minimal, with only one article from SecurityWeek mentioning its patch.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
5.0CPE matchmatch criteria | cpe:2.3:o:oracle:linux:5.0:*:*:*:*:*:*:* | ||
6CPE matchmatch criteria | cpe:2.3:o:oracle:linux:6:*:*:*:*:*:*:* | ||
7CPE matchmatch criteria | cpe:2.3:o:oracle:linux:7:*:*:*:*:*:*:* | ||
<= 44.0.2CPE matchmatch criteria | cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:* | ||
38.0CPE matchmatch criteria | cpe:2.3:a:mozilla:firefox:38.0:*:*:*:*:*:*:* |
CVSS version used by this source: 3.0
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.2 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.
The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.1 Security Researcher mentions.