{"id":"CVE-2025-11266","state":"PUBLISHED","title":"Grassroots DICOM (GDCM) Out-of-bounds Write","description":"An out-of-bounds write vulnerability exists in the Grassroots DICOM library (GDCM). The issue is triggered during parsing of a malformed DICOM file containing encapsulated PixelData fragments (compressed image data stored as multiple fragments). This vulnerability leads to a segmentation fault caused by an out-of-bounds memory access due to unsigned integer underflow in buffer indexing. It is exploitable via file input, simply opening a crafted malicious DICOM file is sufficient to trigger the crash, resulting in a denial-of-service condition.","publishedAt":"2025-12-12T20:48:57.303Z","updatedAt":"2026-01-20T20:25:52.481Z","severity":{"score":6.8,"label":"Medium","version":"4.0","vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:L/VI:L/VA:H/SC:N/SI:N/SA:N","source":"icscert"},"assigner":"icscert","products":["Grassroots DICOM (GDCM)","NumFocus SimpleITK","medInria medInria"],"affected":[{"vendor":"Grassroots","product":"DICOM (GDCM)","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThanOrEqual":"3.0.24","versionType":"custom"}]},{"vendor":"NumFocus","product":"SimpleITK","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThanOrEqual":"2.5.2","versionType":"custom"}]},{"vendor":"medInria","product":"medInria","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThanOrEqual":"4.0","versionType":"custom"}]}],"references":["https://github.com/malaterre/GDCM/releases/tag/v3.2.2","https://www.cisa.gov/news-events/ics-medical-advisories/icsma-25-345-01","https://github.com/cisagov/CSAF/blob/develop/csaf_files/OT/white/2025/icsma-25-345-01.json","https://github.com/malaterre/GDCM/commit/5829c95c8ac3afa9a3a3413675e948959c28a789"],"weaknesses":["CWE-787"],"ingestedAt":"2026-10-29T20:08:31.050Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2025/11xxx/CVE-2025-11266.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2025-11266","state":"PUBLISHED","datePublished":"2025-12-12T20:48:57.303Z","dateUpdated":"2026-01-20T20:25:52.481Z","assignerShortName":"icscert","assignerOrgId":"7d14cffa-0d7d-4270-9dc0-52cabd5a23a6","dateReserved":"2025-10-03T15:37:16.725Z"},"containers":{"cna":{"title":"Grassroots DICOM (GDCM) Out-of-bounds Write","descriptions":[{"lang":"en","value":"An out-of-bounds write vulnerability exists in the Grassroots DICOM library (GDCM). The issue is triggered during parsing of a malformed DICOM file containing encapsulated PixelData fragments (compressed image data stored as multiple fragments). This vulnerability leads to a segmentation fault caused by an out-of-bounds memory access due to unsigned integer underflow in buffer indexing. It is exploitable via file input, simply opening a crafted malicious DICOM file is sufficient to trigger the crash, resulting in a denial-of-service condition."}],"affected":[{"vendor":"Grassroots","product":"DICOM (GDCM)","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThanOrEqual":"3.0.24","versionType":"custom"}]},{"vendor":"NumFocus","product":"SimpleITK","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThanOrEqual":"2.5.2","versionType":"custom"}]},{"vendor":"medInria","product":"medInria","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThanOrEqual":"4.0","versionType":"custom"}]}],"references":[{"url":"https://github.com/malaterre/GDCM/releases/tag/v3.2.2"},{"url":"https://www.cisa.gov/news-events/ics-medical-advisories/icsma-25-345-01"},{"url":"https://github.com/cisagov/CSAF/blob/develop/csaf_files/OT/white/2025/icsma-25-345-01.json"}],"metrics":[{"cvssV4_0":{"Automatable":"NOT_DEFINED","Recovery":"NOT_DEFINED","Safety":"NOT_DEFINED","attackComplexity":"LOW","attackRequirements":"NONE","attackVector":"LOCAL","baseScore":6.8,"baseSeverity":"MEDIUM","exploitMaturity":"NOT_DEFINED","privilegesRequired":"NONE","providerUrgency":"NOT_DEFINED","subAvailabilityImpact":"NONE","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","userInteraction":"ACTIVE","valueDensity":"NOT_DEFINED","vectorString":"CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:L/VI:L/VA:H/SC:N/SI:N/SA:N","version":"4.0","vulnAvailabilityImpact":"HIGH","vulnConfidentialityImpact":"LOW","vulnIntegrityImpact":"LOW","vulnerabilityResponseEffort":"NOT_DEFINED"},"format":"CVSS","scenarios":[{"lang":"en","value":"GENERAL"}]},{"cvssV3_1":{"attackComplexity":"LOW","attackVector":"LOCAL","availabilityImpact":"HIGH","baseScore":6.6,"baseSeverity":"MEDIUM","confidentialityImpact":"LOW","integrityImpact":"LOW","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"REQUIRED","vectorString":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:H","version":"3.1"},"format":"CVSS","scenarios":[{"lang":"en","value":"GENERAL"}]}],"problemTypes":[{"descriptions":[{"cweId":"CWE-787","description":"CWE-787 Out-of-bounds Write","lang":"en","type":"CWE"}]}],"providerMetadata":{"shortName":"icscert","orgId":"7d14cffa-0d7d-4270-9dc0-52cabd5a23a6","dateUpdated":"2025-12-12T20:48:57.303Z"},"credits":[{"lang":"en","type":"finder","value":"Morgen Malinoski reported this vulnerability to CISA."}],"datePublic":"2025-12-11T18:00:00.000Z","solutions":[{"lang":"en","supportingMedia":[{"base64":false,"type":"text/html","value":"<p>The maintainer of the software recommends users update <a target=\"_blank\" rel=\"nofollow\" href=\"https://github.com/malaterre/GDCM/releases/tag/v3.2.2\">Grassroots DICOM (GDCM) to v3.2.2 or later</a>&nbsp;from the main GitHub repository.</p><p>SimpleITK and medInria have both released fixes for the vulnerability.</p>"}],"value":"The maintainer of the software recommends users update  Grassroots DICOM (GDCM) to v3.2.2 or later https://github.com/malaterre/GDCM/releases/tag/v3.2.2  from the main GitHub repository.\n\nSimpleITK and medInria have both released fixes for the vulnerability."}],"source":{"advisory":"ICSMA-25-345-01","discovery":"EXTERNAL"},"x_generator":{"engine":"Vulnogram 0.5.0"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2025-12-15T15:39:13.062094Z","id":"CVE-2025-11266","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2025-12-15T15:39:41.678Z"}},{"title":"CVE Program Container","references":[{"url":"https://github.com/malaterre/GDCM/commit/5829c95c8ac3afa9a3a3413675e948959c28a789"}],"providerMetadata":{"shortName":"CVE","orgId":"af854a3a-2127-422b-91ae-364da2661108","dateUpdated":"2026-01-20T20:25:52.481Z"},"x_generator":{"engine":"ADPogram 0.0.1"}}]}}}