PT-2026-31634 · Unknown · Dicomimagedecoder

Published 2026-04-09 · Updated 2026-04-10 · CVE-2026-5445

Positive Technologies (AI Summary)

CVSS v3.1

9.1

Critical

Base vector

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

Name of the Vulnerable Software and Affected Versions DicomImageDecoder (affected versions not specified)

Description An out-of-bounds read issue exists in the DecodeLookupTable function within DicomImageDecoder.cpp. The lookup-table decoding logic for PALETTE COLOR images does not validate pixel indices against the lookup table size. Specifically, crafted images with indices exceeding the palette size can cause the decoder to read beyond the allocated lookup table memory, potentially exposing heap contents in the output image.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Out of bounds Read

Weakness Enumeration

CWE-125

Related Identifiers

CVE-2026-5445

Affected Products

Dicomimagedecoder

References · 12

• https://security-tracker.debian.org/tracker/CVE-2026-5445 · Vendor Advisory
• https://osv.dev/vulnerability/DEBIAN-CVE-2026-5445 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2026-5445 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2026-5445 · Security Note
• https://ubuntu.com/security/CVE-2026-5445 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2026-5445 · Security Note
• https://twitter.com/VulmonFeeds/status/2042328816115163360 · Twitter Post
• https://orthanc-server.com · Note
• https://twitter.com/TweetThreatNews/status/2042629956061081702 · Twitter Post
• https://twitter.com/CVEnew/status/2042302824713957599 · Twitter Post
• https://machinespirits.de · Note
• https://kb.cert.org/vuls/id/536588 · Note