CVE-2021-29955

Published Jun 24, 2021

Last updated 3 years ago

Overview

Description
A transient execution vulnerability, named Floating Point Value Injection (FPVI) allowed an attacker to leak arbitrary memory addresses and may have also enabled JIT type confusion attacks. (A related vulnerability, Speculative Code Store Bypass (SCSB), did not affect Firefox.). This vulnerability affects Firefox ESR < 78.9 and Firefox < 87.
Source
security@mozilla.org
NVD status
Analyzed

Risk scores

CVSS 3.1

Type
Primary
Base score
5.3
Impact score
3.6
Exploitability score
1.6
Vector string
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:N/A:N
Severity
MEDIUM

CVSS 2.0

Type
Primary
Base score
2.6
Impact score
2.9
Exploitability score
4.9
Vector string
AV:N/AC:H/Au:N/C:P/I:N/A:N

Weaknesses

nvd@nist.gov
CWE-74

Social media

Hype score
Not currently trending

Configurations