Dashboard / CVE-2026-5442

CVE-2026-5442

CRITICAL
INFO Priority: 0.06 BB Relevance: 80/100
Published: 2026-04-09 Modified: 2026-10-26 First seen: 2026-10-29 Status: active

Attack Surface

Network Low Complexity No Auth No Interaction Conf. Impact Integ. Impact

CVSS Vector Breakdown

AV: Network
AC: Low
PR: None
UI: None
S: Unchanged
C: High
I: High
A: High

Description

A heap buffer overflow vulnerability exists in the DICOM image decoder. Dimension fields are encoded using Value Representation (VR) Unsigned Long (UL), instead of the expected VR Unsigned Short (US), which allows extremely large dimensions to be processed. This causes an integer overflow during frame size calculation and results in out-of-bounds memory access during image decoding.

Weakness Classification (1)

Affected Software (1)

VendorProductVersion
orthanc-server orthanc < 1.12.11

References & Advisories (3)

https://kb.cert.org/vuls/id/536588
Third Party Advisory VDB Entry

Bug Bounty Relevance

80 / 100
✓ Network accessible
✓ No authentication
✓ Low complexity
✓ No user interaction

CVSS Score

9.8 / 10.0 v3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS — Exploitation Probability

0.60%
Raw Score 0.005980
Percentile 48.5%
Date 2026-10-29

EPSS Trend

2026-10-29
0.00598
2026-10-28
0.00598

Intelligence Sources

nvd ref →

External Links