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No exploitation reportedFix availableAwaiting NVD analysis

CVE-2026-3650

No exploitation reported by the sources we read.

  • Published2026-03-26
  • WeaknessCWE-401

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

Description

A memory leak exists in the Grassroots DICOM library (GDCM). The bug occurs when parsing malformed DICOM files with non-standard VR types in file meta information. The vulnerability leads to vast memory allocations and resource depletion, triggering a denial-of-service condition. A maliciously crafted file can fill the heap in a single read operation without properly releasing it.

Timeline

dates in UTC
  1. 2026-03-2622:16CVE publishedNVD

Versions per branch

Distribution builds and vendor advisories

Packages from OSV.dev and products from the vendors' CSAF advisories.

version not verifiedVersions not verified: read as OSV.dev and the vendors publish them, not checked against each vendor's release list.

Packages

  • gdcmUbuntu:Pro:14.04:LTSall versions · no fixed version listed
  • gdcmUbuntu:26.10all versions · no fixed version listed
  • gdcmUbuntu:26.04:LTSall versions · no fixed version listed
  • gdcmUbuntu:25.10all versions · no fixed version listed
  • gdcmUbuntu:24.04:LTSall versions · no fixed version listed
  • gdcmUbuntu:22.04:LTSall versions · no fixed version listed
  • gdcmUbuntu:20.04:LTSall versions · no fixed version listed
  • gdcmUbuntu:18.04:LTSall versions · no fixed version listed

5 more package ranges on OSV.dev

Vendor advisories

  • ICSMA-26-083-01 CISA1 known affected

    Grassroots DICOM (GDCM)

    Grassroots Grassroots DICOM (GDCM): 3.2.2

Full record on NVD

Fix

  1. Mitigation from the vendor CISA ICSMA-26-083-01 · 1 productThe maintainer of Grassroots DICOM (GDCM) has not responded to requests to work with CISA to mitigate this vulnerability. For update information refer to the software page on SourceForge.
  2. Mitigation from the vendor CISA ICSMA-26-083-01 · 1 producthttps://sourceforge.net/projects/gdcm/.

Detection

Nuclei template
none so far
ProjectDiscovery
Exploit-DB
no entry
Exploit-DB
Proof of concept
Metasploit modules
none listed
Metasploit Framework

Sources

  • NVDCVE recordread 2026-10-23
  • CISA-ADPSSVC decisionnone2026-03-27
  • CNACVSS 4.08.7known since 2026-10-23
  • CNACVSS 3.17.5known since 2026-10-23
  • CNAweakness (CWE)CWE-401known since 2026-10-23
  • FIRST EPSSEPSS score0.4 %2026-11-08
  • OSVaffected packages—
  • GitHub Advisoriesadvisory—

Identifiers

Technical details

CVSS v3 Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CVSS 4.0 vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Published
2026-03-26
Last Modified
2026-06-17
NVD status
Awaiting Analysis
GitHub Advisory
GHSA-42p8-rv8p-8h4j

Frequently asked questions

What is CVE-2026-3650?

A memory leak exists in the Grassroots DICOM library (GDCM). The bug occurs when parsing malformed DICOM files with non-standard VR types in file meta information. The vulnerability leads to vast memory allocations and resource depletion, triggering a denial-of-service condition. A maliciously crafted file can fill the heap in a single read operation without properly releasing it.

Is CVE-2026-3650 actively exploited?

Active exploitation of CVE-2026-3650 has not been confirmed. Its EPSS score was 0.4% on 2026-11-08, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2026-3650?

CVE-2026-3650 has a CVSS v3 base score of 7.5 (HIGH severity), with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

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