## This update for MozillaThunderbird fixes the following issues: Update to Mozilla Thunderbird 128.12 (MFSA 2025-55, bsc#1244670): * CVE-2025-6424: Use-after-free in FontFaceSet (bmo#1966423) * CVE-2025-6425: The WebCompat WebExtension shipped exposed a persistent UUID (bmo#1717672) * CVE-2025-6426: No warning when opening executable terminal files on macOS (bmo#1964385) * CVE-2025-6429: Incorrect parsing of URLs could have allowed embedding of youtube.com (bmo#1970658) * CVE-2025-6430: Content-Disposition header ignored when a file is included in an embed or object tag (bmo#1971140) ## Patch Instructions: To install this SUSE update use the SUSE recommended installation methods like YaST online_update or "zypper patch". Alternatively you can run the command listed for your product:
* bsc#1244670
Cross-
* CVE-2025-6424
* CVE-2025-6425
* CVE-2025-6426
* CVE-2025-6429
* CVE-2025-6430
CVSS scores:
* CVE-2025-6424 ( SUSE ): 8.7
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
* CVE-2025-6424 ( SUSE ): 8.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
* CVE-2025-6424 ( NVD ): 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
* CVE-2025-6425 ( SUSE ): 5.3
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N
* CVE-2025-6425 ( SUSE ): 5.4 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N
* CVE-2025-6425 ( NVD ): 4.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N
* CVE-2025-6426 ( SUSE ): 5.3
CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:A/VC:N/VI:N/VA:N/SC:H/SI:H/SA:L
* CVE-2025-6426 ( SUSE ): 8.2 CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:L
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