The remote SUSE Linux SLED15 / SLED_SAP15 / SLES15 / SLES_SAP15 / openSUSE 15 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2026:0260-1 advisory.

    Update to Firefox Extended Support Release 140.7.0 ESR (bsc#1256340).

    - MFSA 2026-03
      * CVE-2026-0877: Mitigation bypass in the DOM: Security component
      * CVE-2026-0878: Sandbox escape due to incorrect boundary conditions in the Graphics: CanvasWebGL     component
      * CVE-2026-0879: Sandbox escape due to incorrect boundary conditions in the Graphics component
      * CVE-2026-0880: Sandbox escape due to integer overflow in the Graphics component
      * CVE-2026-0882: Use-after-free in the IPC component
      * CVE-2025-14327: Spoofing issue in the Downloads Panel component
      * CVE-2026-0883: Information disclosure in the Networking component
      * CVE-2026-0884: Use-after-free in the JavaScript Engine component
      * CVE-2026-0885: Use-after-free in the JavaScript: GC component
      * CVE-2026-0886: Incorrect boundary conditions in the Graphics component
      * CVE-2026-0887: Clickjacking issue, information disclosure in the PDF Viewer component
      * CVE-2026-0890: Spoofing issue in the DOM: Copy-Paste and Drag-Drop component
      * CVE-2026-0891: Memory safety bugs fixed in Firefox ESR 140.7, Thunderbird ESR 140.7, Firefox 147 and     Thunderbird 147

Tenable has extracted the preceding description block directly from the SUSE security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

Detections

Analytics

SUSE SLED15: MozillaFirefox / MozillaFirefox-branding-upstream / etc (SUSE-SU-2026:0260-1)

high Nessus Plugin ID 296449

Version 1.2

Version 1.1

Version 1.2 Jun 26, 2026, 4:08 PM Plugin metadata Plugin Feed: 202606261608
Version 1.1 Jan 24, 2026, 9:30 PM New Plugin Feed: 202601242130