Live › vulnerability › CVE-2026-117862
Go to dashboardA boundary-condition error in Firefox's Networking component allows privilege escalation, according to the NVD description. The sources do not say what an attacker gains beyond the escalation or how it is triggered.
Summary written from the sources below. Check the originals before acting.
First seen by InfraStack 2026-10-27 14:32 UTC. All times on this page are UTC.
Teams that run Firefox or Firefox ESR on desktops or in managed fleets before the fixed versions. The sources do not say which configurations or platforms are exposed beyond that.
No product ranges from the sources yet.
firefox --version (or check About Firefox) and compare against the fixed versions: Firefox 159, Firefox ESR 115.44, Firefox ESR 153.6159 or later115.44 or 153.6, whichever matches your ESR branchEach row is the first time that source carried this signal. The analyst’s rows are its own findings.
Privilege escalation due to incorrect boundary conditions in the Networking component. This vulnerability was fixed in Firefox 159, Firefox ESR 115.44, and Firefox ESR 153.6.
This page as .md · .json · in your agent: get_signal("CVE-2026-117862")
NVD data is provided by NIST and is public domain. Posts quoted belong to their authors.