CVE-2017-5396 is a critical use-after-free vulnerability in the Media Decoder component of Mozilla Firefox, Firefox ESR, and Thunderbird, affecting versions prior to 51 and 45.7 respectively. This flaw allows for remote code execution due to improper handling of media events after memory deallocation. With a CVSS score of 9.8, it presents a high risk of complete compromise (confidentiality, integrity, and availability) with low attack complexity and no user interaction required. While there is no evidence of active exploitation or publicly available exploit code, the vulnerability has garnered significant community discussion, indicating awareness among security researchers.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
8.0CPE matchmatch criteria | cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:* | ||
5.0CPE matchmatch criteria | cpe:2.3:o:redhat:enterprise_linux:5.0:*:*:*:*:*:*:* | ||
6.0CPE matchmatch criteria | cpe:2.3:o:redhat:enterprise_linux:6.0:*:*:*:*:*:*:* | ||
7.0CPE matchmatch criteria | cpe:2.3:o:redhat:enterprise_linux:7.0:*:*:*:*:*:*:* | ||
5.0CPE matchmatch criteria | cpe:2.3:o:redhat:enterprise_linux_desktop:5.0:*:*:*:*:*:*:* |
CVSS version used by this source: 3.0
CVSS:3.0/AV:N/AC:L/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, 0.3 Bluesky, 0.3 Mastodon, and 2.4 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.