CVE-2021-32198 describes a denial-of-service vulnerability in EmTec ZOC terminal emulator versions through 8.02.4. Remote servers can exploit this by rapidly changing the ZOC window title, causing the Windows GUI to hang due to excessive SetWindowTextA/W calls without a proper delay mechanism. This vulnerability carries a critical CVSS score of 9.8, indicating a network-based attack with low complexity and high impact on availability, confidentiality, and integrity. While no public exploit code or active exploitation has been confirmed, the vulnerability has garnered some community discussion and media coverage, highlighting its potential impact.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
<= 8.02.4CPE matchmatch criteria | cpe:2.3:a:emtec:zoc:*:*:*:*:*:*:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 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.