CVE-2021-41689

HighCVSS 7.5/10Last modified Jun 17, 2026

Description

DCMTK through 3.6.6 does not handle string copy properly. Sending specific requests to the dcmqrdb program, it would query its database and copy the result even if the result is null, which can incur a head-based overflow. An attacker can use it to launch a DoS attack.

Metrics

CVSS 3.1 7.5/10CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Weakness enumeration

Affected software

No affected versions have been published.

Timeline

Published
Jun 28, 2022
Last modified
Jun 17, 2026
NVD status
Modified

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CVE-2021-41689: High severity, CVSS 7.5 | Vulnix