CVE-2021-43003 is an Integer Overflow vulnerability affecting Amzetta zPortal Windows zClient versions up to 3.2.8180.148. This high-severity flaw (CVSS 8.8) allows a local attacker with low privileges to execute arbitrary code in kernel mode or trigger a denial of service through memory corruption and OS crashes by sending specially crafted I/O Request Packets to IOCTL Handler 0x22001B. While there is no known active exploitation or public exploit code (Metasploit, Nuclei, ExploitDB), the vulnerability has garnered some community discussion and media coverage, indicating awareness within the cybersecurity landscape.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
<= 3.2.8180.148CPE matchmatch criteria | cpe:2.3:a:amzetta:zportal_windows_zclient:*:*:*:*:*:*:*:* |
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.