{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-3650", "assignerOrgId": "7d14cffa-0d7d-4270-9dc0-52cabd5a23a6", "state": "PUBLISHED", "assignerShortName": "icscert", "dateReserved": "2026-03-06T16:24:00.662Z", "datePublished": "2026-03-26T21:10:30.864Z", "dateUpdated": "2026-03-26T21:10:30.864Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "7d14cffa-0d7d-4270-9dc0-52cabd5a23a6", "shortName": "icscert", "dateUpdated": "2026-03-26T21:10:30.864Z"}, "title": "Grassroots DICOM Missing release of memory after effective lifetime", "problemTypes": [{"descriptions": [{"lang": "en", "cweId": "CWE-401", "description": "CWE-401", "type": "CWE"}]}], "affected": [{"vendor": "Grassroots", "product": "Grassroots DICOM (GDCM)", "versions": [{"status": "affected", "version": "3.2.2", "versionType": "custom"}], "defaultStatus": "unaffected"}], "descriptions": [{"lang": "en", "value": "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.", "supportingMedia": [{"type": "text/html", "base64": false, "value": "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."}]}], "references": [{"url": "https://sourceforge.net/projects/gdcm/"}, {"url": "https://www.cisa.gov/news-events/ics-medical-advisories/icsma-26-083-01"}, {"url": "https://github.com/cisagov/CSAF/blob/develop/csaf_files/OT/white/2026/icsma-26-083-01.json"}], "metrics": [{"format": "CVSS", "scenarios": [{"lang": "en", "value": "GENERAL"}], "cvssV4_0": {"attackVector": "NETWORK", "attackComplexity": "LOW", "attackRequirements": "NONE", "privilegesRequired": "NONE", "userInteraction": "NONE", "vulnConfidentialityImpact": "NONE", "subConfidentialityImpact": "NONE", "vulnIntegrityImpact": "NONE", "subIntegrityImpact": "NONE", "vulnAvailabilityImpact": "HIGH", "subAvailabilityImpact": "NONE", "exploitMaturity": "NOT_DEFINED", "Safety": "NOT_DEFINED", "Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "valueDensity": "NOT_DEFINED", "vulnerabilityResponseEffort": "NOT_DEFINED", "providerUrgency": "NOT_DEFINED", "version": "4.0", "baseSeverity": "HIGH", "baseScore": 8.7, "vectorString": "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"}}, {"format": "CVSS", "scenarios": [{"lang": "en", "value": "GENERAL"}], "cvssV3_1": {"version": "3.1", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "availabilityImpact": "HIGH", "baseSeverity": "HIGH", "baseScore": 7.5, "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"}}], "workarounds": [{"lang": "en", "value": "The maintainer of Grassroots DICOM (GDCM) has not responded to \nrequests to work with CISA to mitigate this vulnerability. For update \ninformation refer to the software page on SourceForge.\n\n https://sourceforge.net/projects/gdcm/", "supportingMedia": [{"type": "text/html", "base64": false, "value": "<p>The maintainer of Grassroots DICOM (GDCM) has not responded to \nrequests to work with CISA to mitigate this vulnerability. For update \ninformation refer to the software page on SourceForge.</p><p><a href=\"https://sourceforge.net/projects/gdcm/\" title=\"(opens in a new window)\">https://sourceforge.net/projects/gdcm/</a></p>"}]}], "credits": [{"lang": "en", "value": "Volodymyr Bihunenko, Mykyta Mudryi, and Markiian Chaklosh of ARIMLABS reported this vulnerability to CISA", "type": "finder"}], "source": {"advisory": "ICSMA-26-083-01", "discovery": "EXTERNAL"}, "x_generator": {"engine": "Vulnogram 1.0.1"}}}}

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{"cveTags": [], "descriptions": [{"lang": "en", "value": "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."}], "id": "CVE-2026-3650", "lastModified": "2026-03-26T22:16:31.370", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 7.5, "baseSeverity": "HIGH", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 3.6, "source": "ics-cert@hq.dhs.gov", "type": "Secondary"}], "cvssMetricV40": [{"cvssData": {"Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "Safety": "NOT_DEFINED", "attackComplexity": "LOW", "attackRequirements": "NONE", "attackVector": "NETWORK", "availabilityRequirement": "NOT_DEFINED", "baseScore": 8.7, "baseSeverity": "HIGH", "confidentialityRequirement": "NOT_DEFINED", "exploitMaturity": "NOT_DEFINED", "integrityRequirement": "NOT_DEFINED", "modifiedAttackComplexity": "NOT_DEFINED", "modifiedAttackRequirements": "NOT_DEFINED", "modifiedAttackVector": "NOT_DEFINED", "modifiedPrivilegesRequired": "NOT_DEFINED", "modifiedSubAvailabilityImpact": "NOT_DEFINED", "modifiedSubConfidentialityImpact": "NOT_DEFINED", "modifiedSubIntegrityImpact": "NOT_DEFINED", "modifiedUserInteraction": "NOT_DEFINED", "modifiedVulnAvailabilityImpact": "NOT_DEFINED", "modifiedVulnConfidentialityImpact": "NOT_DEFINED", "modifiedVulnIntegrityImpact": "NOT_DEFINED", "privilegesRequired": "NONE", "providerUrgency": "NOT_DEFINED", "subAvailabilityImpact": "NONE", "subConfidentialityImpact": "NONE", "subIntegrityImpact": "NONE", "userInteraction": "NONE", "valueDensity": "NOT_DEFINED", "vectorString": "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", "version": "4.0", "vulnAvailabilityImpact": "HIGH", "vulnConfidentialityImpact": "NONE", "vulnIntegrityImpact": "NONE", "vulnerabilityResponseEffort": "NOT_DEFINED"}, "source": "ics-cert@hq.dhs.gov", "type": "Secondary"}]}, "published": "2026-03-26T22:16:31.370", "references": [{"source": "ics-cert@hq.dhs.gov", "url": "https://github.com/cisagov/CSAF/blob/develop/csaf_files/OT/white/2026/icsma-26-083-01.json"}, {"source": "ics-cert@hq.dhs.gov", "url": "https://sourceforge.net/projects/gdcm/"}, {"source": "ics-cert@hq.dhs.gov", "url": "https://www.cisa.gov/news-events/ics-medical-advisories/icsma-26-083-01"}], "sourceIdentifier": "ics-cert@hq.dhs.gov", "vulnStatus": "Received", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-401"}], "source": "ics-cert@hq.dhs.gov", "type": "Primary"}]}

{"bugzilla": {"description": "gdcm: GDCM: Denial of Service via malformed DICOM files", "id": "2451988", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2451988"}, "csaw": false, "cvss3": {"cvss3_base_score": "6.5", "cvss3_scoring_vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H", "status": "draft"}, "cwe": "CWE-770", "details": ["A flaw was found in the Grassroots DICOM library (GDCM). This memory leak vulnerability occurs when the library processes maliciously crafted DICOM files containing non-standard value representation (VR) types in their file meta-information. A remote attacker can exploit this by providing such a file, leading to vast memory allocations and resource depletion. This can trigger a denial-of-service condition, making the affected system unavailable."], "name": "CVE-2026-3650", "public_date": "2026-03-26T21:10:30Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-3650\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-3650\nhttps://github.com/cisagov/CSAF/blob/develop/csaf_files/OT/white/2026/icsma-26-083-01.json\nhttps://sourceforge.net/projects/gdcm/\nhttps://www.cisa.gov/news-events/ics-medical-advisories/icsma-26-083-01"], "statement": "A memory leak flaw in the Grassroots DICOM library (GDCM) can lead to a denial-of-service condition. This MODERATE vulnerability occurs when the library processes maliciously crafted DICOM files containing non-standard value representation types in their file meta-information. Red Hat products that utilize GDCM and process untrusted DICOM files are affected.", "threat_severity": "Moderate"}