CVE-2020-36855 MEDIUM

CVE-2020-36855: DCMTK dcmqrscp parseQuota stack-based overflow

Vendor N/A
Product DCMTK
Weakness CWE-121
Published October 21, 2025
Last update October 21, 2025

CVSS base score

4.8/10
Attack vector Local
Attack complexity Low
Privileges required Low
User interaction None
Confidentiality
Integrity

CVSS vector

CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P

What the vulnerability does

01Description

A security vulnerability has been detected in DCMTK up to 3.6.5. The affected element is the function parseQuota of the component dcmqrscp. The manipulation of the argument StorageQuota leads to stack-based buffer overflow. Local access is required to approach this attack. The exploit has been disclosed publicly and may be used. Upgrading to version 3.6.6 is sufficient to fix this issue. The identifier of the patch is 0fef9f02e. It is recommended to upgrade the affected component.

Key dates

02Disclosure timeline

October 21, 2025 CVE published
October 21, 2025 Record updated