Description
A double-free issue could have occurred in `sec_pkcs7_decoder_start_decrypt()` when handling an error path. Under specific conditions, the same symmetric key could have been freed twice, potentially leading to memory corruption. This vulnerability affects Firefox < 133, Thunderbird < 133, Firefox ESR < 128.7, and Thunderbird < 128.7.
References (7)
Scores
CVSS v3
9.8
EPSS
0.0027
EPSS Percentile
50.5%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CISA SSVC
Vulnrichment
Exploitation
none
Automatable
yes
Technical Impact
total
Details
CWE
CWE-415
Status
published
Products (3)
mozilla/firefox
< 128.7.0
mozilla/firefox
< 133.0
mozilla/thunderbird
< 128.7.0
Published
Nov 26, 2024
Tracked Since
Feb 18, 2026