CVE-2021-41689

7.5 HIGH
Published: June 28, 2022 Modified: November 03, 2025

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.

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CVSS v3.x Details

0.0 Low Medium High Critical 10.0
Vector String
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

References to Advisories, Solutions, and Tools

Patch Vendor Advisory Exploit Third Party Advisory
https://github.com/DCMTK/dcmtk
Source: cve@mitre.org
Product Third Party Advisory
https://github.com/DCMTK/dcmtk
Source: af854a3a-2127-422b-91ae-364da2661108
Product Third Party Advisory
https://github.com/DCMTK/dcmtk/commit/5c14bf53fb42ceca12bbcc0016e8704b1580920d
Source: af854a3a-2127-422b-91ae-364da2661108
Patch Third Party Advisory

7 reference(s) from NVD

Quick Stats

CVSS v3 Score
7.5 / 10.0
EPSS (Exploit Probability)
0.1%
32th percentile
Exploitation Status
Not in CISA KEV

Weaknesses (CWE)

Affected Vendors

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