CVE Vulnerability

CVE-2021-29955

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.

2.6 /10

CVSS v2.0 :

V3 Legend

Vector :

Exploitability : 4.9 / Impact : 2.9

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Confidentiality Impact PARTIAL

Integrity Impact NONE

Availability Impact NONE

Scope

5.3 /10

CVSS v3.0 : MEDIUM

V3 Legend

Vector :

Exploitability : 1.6 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity HIGH

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact HIGH

Integrity Impact NONE

Availability Impact NONE

Scope UNCHANGED

References
Link Resource
https://www.mozilla.org/security/advisories/mfsa2021-11/ Release Notes Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2021-10/ Release Notes Vendor Advisory
https://bugzilla.mozilla.org/show_bug.cgi?id=1692972 Permissions Required Vendor Advisory
Configurations

Configuration 1

cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:*
cpe:2.3:a:mozilla:firefox_esr:*:*:*:*:*:*:*:*
Information

Published : 2021-06-24 02:15

Updated : 2021-06-30 04:48

NVD link : CVE-2021-29955

Mitre link : CVE-2021-29955

Products Affected
No products.
CWE
CWE-74