CVE-2022-40957

Mozilla: Incoherent instruction cache when building WASM on ARM64

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Severity

Low

Red Hat Product Security

5.8

CVSS 3.1

Review impact separately from score.

Published · September 20, 2022

Updated · November 21, 2025

Description

A flaw was found in Mozilla. The Mozilla Foundation Security Advisory describes the issue of inconsistent data in the instruction and data cache when creating wasm code, which could lead to a potentially exploitable crash.

Statement

This bug only affects Firefox on ARM64 platforms.

CVSS score applicability

The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.

Mitigation

No mitigation is specified in collected source.

CVSS / CWE

CVSS 3.1 · 5.8
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:L

CWE-240 · Improper Handling of Inconsistent Structural Elements