Rapid7

vulnerability

Ubuntu: (Multiple Advisories) (CVE-2017-7749): Firefox vulnerabilities

Severity
8
CVSS
(AV:N/AC:L/Au:N/C:P/I:P/A:P)
Published
Jun 14, 2017
Added
Jun 16, 2017
Modified
Mar 27, 2026

Description

A use-after-free vulnerability when using an incorrect URL during the reloading of a docshell. This results in a potentially exploitable crash. This vulnerability affects Firefox < 54, Firefox ESR < 52.2, and Thunderbird < 52.2.

Solutions

ubuntu-upgrade-firefoxubuntu-upgrade-thunderbird

References

    Title
    Rapid7 Labs

    2026 Global Threat Landscape Report

    The predictive window has collapsed. Exploitation follows disclosure in days. See how attackers are accelerating and how to stay ahead.