New! Vulnerability Priority Rating (VPR)
Tenable calculates a dynamic VPR for every vulnerability. VPR combines vulnerability information with threat intelligence and machine learning algorithms to predict which vulnerabilities are most likely to be exploited in attacks. Read more about what VPR is and how it's different from CVSS.
VPR Score: 9.4
SynopsisA web browser installed on the remote Windows host is affected by a vulnerability.
DescriptionThe version of Firefox ESR installed on the remote Windows host is prior to 68.4.1. It is, therefore, affected by the vulnerability as referenced in the mfsa2020-03 advisory.
- Incorrect alias information in IonMonkey JIT compiler for setting array elements could lead to a type confusion. We are aware of targeted attacks in the wild abusing this flaw. (CVE-2019-17026)
Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.
SolutionUpgrade to Mozilla Firefox ESR version 68.4.1 or later.