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CVE-2025-1943
published 2025-03-04

CVE-2025-1943: Memory safety bugs present in Firefox 135 and Thunderbird 135. Some of these bugs showed evidence of memory corruption and we presume that with enough effort…

high8.2CVSS 3.1
AVNACLPRNUINSUCNILAH
Memory safety bugs present in Firefox 135 and Thunderbird 135. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability was fixed in Firefox 136 and Thunderbird 136.

Affected

12 ranges
VendorProductVersion rangeFixed in
debianfirefox< firefox 136.0-1 (sid)firefox 136.0-1 (sid)
mozillafirefox< 136.0136.0
mozillafirefox
mozillafirefox>= 0 < 136.0+build3-0ubuntu0.20.04.1136.0+build3-0ubuntu0.20.04.1
mozillathunderbird< 136.0136.0
mozillathunderbird>= 0 < 1:140.7.1+build1-0ubuntu0.22.04.11:140.7.1+build1-0ubuntu0.22.04.1
msrccbl2_kernel_5.15.92.1-1_on_cbl_mariner_2.0
msrccbl_mariner_1.0_arm
msrccbl_mariner_1.0_x64
msrccbl_mariner_2.0_arm
msrccbl_mariner_2.0_x64
msrccm1_kernel_5.10.174.1-1_on_cbl_mariner_1.0

CVSS provenance

nvdv3.18.2HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H
osv8.2HIGH