CVE-2026-5445

CRITICAL
INFO Priority: 0.06 BB Relevance: 78/100
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

CVSS Vector Breakdown

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

Description

An out-of-bounds read vulnerability exists in the `DecodeLookupTable` function within `DicomImageDecoder.cpp`. The lookup-table decoding logic used for `PALETTE COLOR` images does not validate pixel indices against the lookup table size. Crafted images containing indices larger than the palette size cause the decoder to read beyond allocated lookup table memory and expose heap contents in the output image.

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

78 / 100
✓ Network accessible
✓ No authentication
✓ Low complexity
✓ No user interaction

CVSS Score

9.1 / 10.0 v3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H

EPSS — Exploitation Probability

0.67%
Raw Score 0.006660
Percentile 51.7%
Date 2026-10-29

EPSS Trend

2026-10-29
0.00666
2026-10-28
0.00666

Intelligence Sources

nvd ref →