CVE-2021-32198: n/a vulnerability

CVE-2021-32198: EmTec ZOC through 8.02.4 allows remote servers to cause a denial of service (Windows GUI hang) by telling t...

EmTec ZOC through 8.02.4 allows remote servers to cause a denial of service (Windows GUI hang) by telling the ZOC window to change its title repeatedly at high speed, which results in many SetWindowTextA or SetWindowTextW calls. In other words, it does not implement a usleep or similar delay upon processing a title change.

UnknownCVSS not scoredNot KEV-listedUpdatedAug 3, 2024, 23:17 UTC (UTC+00:00)

Security readout for executives and security teams

A malicious or misbehaving remote server can make affected Windows ZOC clients hang by forcing rapid window title changes. The known impact is denial of service to the user’s terminal session, not data theft or code execution in the provided sources. Exposure is likely limited to Windows users running EmTec ZOC through 8.02.4 who connect to remote servers capable of controlling terminal window titles. Handle as a targeted availability risk for teams relying on ZOC. Prioritize if administrators or operations staff use affected Windows clients for critical remote access, but current sources do not support emergency severity. Mitigation focus: Check EmTec guidance and changelog for versions newer than 8.02.4.; Upgrade ZOC if EmTec identifies a corrected release.; Limit ZOC connections to trusted servers until remediation is confirmed..

Prepared: Jun 2, 2026, 19:36 UTC (UTC+00:00)

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

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Vulnerability profileCVE Program record

Severity: Unknown
CVSS: Not scored
Known Exploited: No
Published: Jun 6, 2021, 11:41 UTC (UTC+00:00)

Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

0CVSS vectors

0Timeline events

0ADP providers

2Source links

CVSS and timeline data

No CVSS vectors or timeline events were available in the normalized CVE source material.

Source materials

CVE List V5 sourceCVE List V5
https://pastebin.com/0xhrDvW0CVE reference · x_refsource_MISC

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus

n/an/an/aListed

Weakness

CWE details

No CWE listed

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