CVE-2021-41688

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

Description

DCMTK through 3.6.6 does not handle memory free properly. The object in the program is free but its address is still used in other locations. Sending specific requests to the dcmqrdb program will incur a double free. 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/a9697dfeb672b0b9412c00c7d36d801e27ec85cb
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%
31th percentile
Exploitation Status
Not in CISA KEV

Weaknesses (CWE)

Affected Vendors

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