CVE-2017-5439 is a critical use-after-free vulnerability in Mozilla Firefox and Thunderbird, affecting versions prior to Firefox 53, Firefox ESR 52.1, and Thunderbird 52.1. This flaw, stemming from improper handling of XSLT template parameters, can lead to an exploitable crash. With a CVSS score of 9.8 (CRITICAL), it is easily exploitable over the network with low attack complexity, potentially leading to complete compromise of confidentiality, integrity, and availability. While no public exploit code exists in Metasploit or ExploitDB, and it is not listed in CISA's KEV catalog, the vulnerability has garnered significant community discussion, indicating awareness among researchers.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
9.0CPE matchmatch criteria | cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:* | ||
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:*:*:*:*:*:*:* | ||
6.0CPE matchmatch criteria | cpe:2.3:o:redhat:enterprise_linux_desktop:6.0:*:*:*:*:*:*:* | ||
7.0CPE matchmatch criteria | cpe:2.3:o:redhat:enterprise_linux_desktop:7.0:*:*:*:*:*:*:* |
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.