CVE-2026-4717

CriticalCVSS 9.8/10Last modified Jun 17, 2026

Description

Privilege escalation in the Netmonitor component. This vulnerability was fixed in Firefox 149, Firefox ESR 140.9, Thunderbird 149, and Thunderbird 140.9.

Metrics

CVSS 3.1 9.8/10CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected software

No affected versions have been published.

Timeline

Published: Mar 24, 2026
Last modified: Jun 17, 2026
NVD status: Modified

Related CVEs from 2026

CVE-2026-471707.7Garlic-Hub manages digital signage network — devices, content, and playlists — from a single self-hosted interface. Prior to version 1.1, au CVE-2026-471718.8Quest Bot is an opensource modern Discord Bot built for moderation, utilities and support. Prior to version 1.0.3, a normal user can create CVE-2026-471729.5Quest Bot is an opensource modern Discord Bot built for moderation, utilities and support. Prior to version 1.0.3, the repository has a priv CVE-2026-471736.3Quest Bot is an opensource modern Discord Bot built for moderation, utilities and support. Prior to version 1.0.3, a normal user can create CVE-2026-471749.5In Duck Site before version 1.0.1, the repository has a deploy workflow that runs after the build workflow completes. The build workflow run CVE-2026-471752.3Quest Bot is an opensource modern Discord Bot built for moderation, utilities and support. Prior to version 1.0.4, several moderation comman CVE-2026-471765.7Quest Bot is an opensource modern Discord Bot built for moderation, utilities and support. Prior to version 1.0.4, a user who can configure CVE-2026-471775.7Quest Bot is an opensource modern Discord Bot built for moderation, utilities and support. Prior to version 1.0.4, a user who can configure CVE-2026-471787.8libheif is a HEIF and AVIF file format decoder and encoder. In versions 1.19.0 through 1.21.2, a crafted HEIF file (uncompressed `unci` code CVE-2026-471797.7Arcane is an interface for managing Docker containers, images, networks, and volumes. Prior to 1.19.4, ProjectService.GetProjectFileContent CVE-2026-47188.1Undefined behavior in the WebRTC: Signaling component. This vulnerability was fixed in Firefox 149, Firefox ESR 140.9, Thunderbird 149, and CVE-2026-471806.5Zeroconf is a pure Python implementation of multicast DNS service discovery. Prior to 0.149.5, DNSIncoming._decode_labels_at_offset recurses