Is CVE-2026-5445 actively exploited?

No active exploitation of CVE-2026-5445 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2026-5445 be exploited remotely?

Yes. CVE-2026-5445 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2026-5445?

CVE-2026-5445 has a CVSS score of 9.1 (CRITICAL).

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CRITICAL

CVE-2026-5445

Published: April 9, 2026· Updated: Apr 14, 2026

9.1

CVSS v3.1

EPSS:0.02%probability of exploitation in 30 daysPercentile:4.0th

Official 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.

NVD Source

Technical Analysis

CVE-2026-5445 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A successful exploit results in complete confidentiality breach (data exposure), availability disruption (denial of service), with a CVSS base score of 9.1.