CVE-2021-43638

HighCVSS 8.8/10Last modified Jun 17, 2026

Description

Amazon Amazon WorkSpaces agent is affected by Integer Overflow. IOCTL Handler 0x22001B in the Amazon WorkSpaces agent below v1.0.1.1537 allow local attackers to execute arbitrary code in kernel mode or cause a denial of service (memory corruption and OS crash) via specially crafted I/O Request Packet.

Metrics

CVSS 3.1 8.8/10CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

Weakness enumeration

Affected software

No affected versions have been published.

Timeline

Published
Dec 7, 2021
Last modified
Jun 17, 2026
NVD status
Modified

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CVE-2021-43638: High severity, CVSS 8.8 | Vulnix