CVE-2020-36855

low-risk

Published 2025-10-21

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.

Do I need to act?

0.03% chance of exploitation

EPSS score — low exploit probability

Not on CISA KEV list

No confirmed active exploitation reported to CISA

Patch status unknown

Check vendor advisories for fix availability and mitigation guidance

CVSS 5.3/10 Medium

LOCAL / LOW complexity

Affected Products (1)

Dcmtk

Affected Vendors

Offis

References (5)

Exploit https://shimo.im/docs/rp3OMVMDPKtjn0km/

Permissions Required https://vuldb.com/?ctiid.329028

Third Party Advisory https://vuldb.com/?id.329028

Third Party Advisory https://vuldb.com/?submit.673137

Exploit https://shimo.im/docs/rp3OMVMDPKtjn0km/read

/ 100

low-risk

Severity 18/34 · Moderate

Exploitability 0/34 · Minimal

Exposure 5/34 · Minimal