CVE-2021-22556 - CVE House
Back to Database
Status published Medium CVE-2021-22556

Integer Overflow in Fuchsia Kernel

Vulnerability Description

The Security Team discovered an integer overflow bug that allows an attacker with code execution to issue memory cache invalidation operations on pages that they don’t own, allowing them to control kernel memory from userspace. We recommend upgrading to kernel version 4.1 or beyond.

Impact Analysis

Refer to official advisory for detailed impact metrics.

Remediation

Ensure systems are updated to the latest vendor-supplied patch levels.

THREAT MONITOR

Am I Vulnerable?

Launch our assessment wizard to check if your infrastructure is exposed to • CVE-2021-22556

Credits & Attribution

No credits recorded in the NVD database.

Affected Vendor

Affected Software

Fuchsia Kernel
Vulnerable Versions:
unspecified

Timeline

Official Publish: May 3rd, 2022
Last Modified: April 21st, 2025
Added to House: July 21st, 2026

CVSS Vectors

V3: CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:L/A:N

Weaknesses (CWE)