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.
History

Mon, 03 Nov 2025 21:30:00 +0000

Type Values Removed Values Added
References

Mon, 03 Nov 2025 21:15:00 +0000

Type Values Removed Values Added
First Time appeared Dcmtk
Dcmtk dcmtk
CPEs cpe:2.3:a:dcmtk:dcmtk:*:*:*:*:*:*:*:*
Vendors & Products Dcmtk
Dcmtk dcmtk
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Wed, 16 Jul 2025 13:45:00 +0000

Type Values Removed Values Added
Metrics epss

{'score': 0.00079}

epss

{'score': 0.00094}


cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published: 2022-06-28T09:38:17.000Z

Updated: 2025-11-03T20:33:58.161Z

Reserved: 2021-09-27T00:00:00.000Z

Link: CVE-2021-41689

cve-icon Vulnrichment

Updated: 2025-11-03T20:33:58.161Z

cve-icon NVD

Status : Modified

Published: 2022-06-28T13:15:10.587

Modified: 2025-11-03T21:15:43.513

Link: CVE-2021-41689

cve-icon Redhat

No data.