CVE-2025-8027

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 affects Firefox < 141, Firefox ESR < 115.26, Firefox ESR < 128.13, Firefox ESR < 140.1, Thunderbird < 141, Thunderbird < 128.13, and Thunderbird < 140.1.
Configurations

Configuration 1 (hide)

OR cpe:2.3:a:mozilla:firefox:*:*:*:*:esr:*:*:*
cpe:2.3:a:mozilla:firefox:*:*:*:*:-:*:*:*
cpe:2.3:a:mozilla:firefox:*:*:*:*:esr:*:*:*
cpe:2.3:a:mozilla:firefox:*:*:*:*:esr:*:*:*
cpe:2.3:a:mozilla:thunderbird:*:*:*:*:esr:*:*:*
cpe:2.3:a:mozilla:thunderbird:*:*:*:*:-:*:*:*
cpe:2.3:a:mozilla:thunderbird:*:*:*:*:esr:*:*:*

History

03 Nov 2025, 20:19

Type Values Removed Values Added
References
  • () https://lists.debian.org/debian-lts-announce/2025/07/msg00016.html -

Information

Published : 2025-07-22 21:15

Updated : 2025-11-03 20:19


NVD link : CVE-2025-8027

Mitre link : CVE-2025-8027

CVE.ORG link : CVE-2025-8027


JSON object : View

Products Affected

mozilla

  • thunderbird
  • firefox
CWE
CWE-457

Use of Uninitialized Variable