Description
On 64-bit platforms IonMonkey-JIT only wrote 32 bits of the 64-bit return value space on the stack. Baseline-JIT, however, read the entire 64 bits. This vulnerability was fixed in Firefox 141, Firefox ESR 115.26, Firefox ESR 128.13, Firefox ESR 140.1, Thunderbird 141, Thunderbird 128.13, and Thunderbird 140.1.
References (9)
Scores
CVSS v3
6.5
EPSS
0.0012
EPSS Percentile
31.2%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
CISA SSVC
Vulnrichment
Exploitation
none
Automatable
no
Technical Impact
partial
Details
CWE
CWE-457
Status
published
Products (11)
mozilla/firefox
< 115.26.0
mozilla/firefox
< 141.0
Mozilla/Firefox
115.26 - 115.*
Mozilla/Firefox
128.13 - 128.*
Mozilla/Firefox
140.1 - 140.*
Mozilla/Firefox
141
mozilla/thunderbird
< 128.13.0
mozilla/thunderbird
< 141.0
Mozilla/Thunderbird
128.13 - 128.*
Mozilla/Thunderbird
140.1 - 140.*
... and 1 more
Published
Jul 22, 2025
Tracked Since
Feb 18, 2026