CVE-2020-36855

medium

Published 2025-10-21 · Modified 2026-04-29

CVSS v3

5.5

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

CVSS v2

4.3

VIR risk

5.5

Description

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.

Predictions

Exploit likelihood

55%

Patch ETA

—

Heuristic predictions, AS-IS, for prioritization only.

Mitigations

vendor Authored 2026-05-27

Vendor advisory: debian — https://security-tracker.debian.org/tracker/CVE-2020-36855

OS impact

OS	Version	Status	Fixed in
debian	bookworm	fixed	`3.6.6-1`
debian	bullseye	fixed	`3.6.5-1+deb11u5`
debian	forky	fixed	`3.6.6-1`
debian	sid	fixed	`3.6.6-1`
debian	trixie	fixed	`3.6.6-1`

Application impact

Vendor	Product	Versions	Fixed
offis	dcmtk	`{"endExcluding":"3.6.6"}`	`3.6.6`

References

CWEs

CWE-119 CWE-121

Verify integrity in audit chain (admin only). AS-IS.