CVE-2021-42687 is a buffer overflow vulnerability affecting Accops HyWorks Windows Client versions prior to 3.2.8.200. This flaw allows a local attacker to execute arbitrary code in kernel mode or trigger a denial of service through a specially crafted I/O Request Packet targeting IOCTL Handler 0x22005B. With a CVSS score of 8.8 (High), the vulnerability presents a significant risk due to its low attack complexity and high impact on confidentiality, integrity, and availability, potentially leading to an OS crash. While there is no evidence of active exploitation or publicly available exploit code, the vulnerability has garnered some community discussion and media coverage, indicating awareness within the cybersecurity community.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
< 3.2.8.200CPE matchmatch criteria | cpe:2.3:a:accops:hyworks_windows_client:*:*:*:*:*:*:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.2 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.
The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.
Remediation records are not available for this CVE.