CVE-2026-5442 (GCVE-0-2026-5442)
Vulnerability from cvelistv5
Published
2026-04-09 14:43
Modified
2026-04-14 16:34
Severity ?
VLAI Severity ?
EPSS score ?
Summary
A heap buffer overflow vulnerability exists in the DICOM image decoder. Dimension fields are encoded using Value Representation (VR) Unsigned Long (UL), instead of the expected VR Unsigned Short (US), which allows extremely large dimensions to be processed. This causes an integer overflow during frame size calculation and results in out-of-bounds memory access during image decoding.
References
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Orthanc | DICOM Server |
Version: 0 < |
{
"containers": {
"adp": [
{
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 9.8,
"baseSeverity": "CRITICAL",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
"version": "3.1"
}
},
{
"other": {
"content": {
"id": "CVE-2026-5442",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "yes"
},
{
"Technical Impact": "total"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-04-14T15:12:07.779154Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-04-14T16:34:39.322Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"product": "DICOM Server",
"vendor": "Orthanc",
"versions": [
{
"lessThanOrEqual": "1.12.10",
"status": "affected",
"version": "0",
"versionType": "custom"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "A heap buffer overflow vulnerability exists in the DICOM image decoder. Dimension fields are encoded using Value Representation (VR) Unsigned Long (UL), instead of the expected VR Unsigned Short (US), which allows extremely large dimensions to be processed. This causes an integer overflow during frame size calculation and results in out-of-bounds memory access during image decoding."
}
],
"problemTypes": [
{
"descriptions": [
{
"description": "CWE-190 Integer Overflow or Wraparound",
"lang": "en"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-04-09T14:43:43.571Z",
"orgId": "37e5125f-f79b-445b-8fad-9564f167944b",
"shortName": "certcc"
},
"references": [
{
"url": "https://www.orthanc-server.com/"
},
{
"url": "https://www.machinespirits.de/"
},
{
"url": "https://kb.cert.org/vuls/id/536588"
}
],
"source": {
"discovery": "UNKNOWN"
},
"title": "Heap Buffer Overflow in DICOM Image Decoder via VR UL Dimensions",
"x_generator": {
"engine": "VINCE 3.0.35",
"env": "prod",
"origin": "https://cveawg.mitre.org/api/cve/CVE-2026-5442"
}
}
},
"cveMetadata": {
"assignerOrgId": "37e5125f-f79b-445b-8fad-9564f167944b",
"assignerShortName": "certcc",
"cveId": "CVE-2026-5442",
"datePublished": "2026-04-09T14:43:43.571Z",
"dateReserved": "2026-04-02T19:22:48.196Z",
"dateUpdated": "2026-04-14T16:34:39.322Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2",
"vulnerability-lookup:meta": {
"vulnrichment": {
"containers": "{\"adp\": [{\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"cvssV3_1\": {\"scope\": \"UNCHANGED\", \"version\": \"3.1\", \"baseScore\": 9.8, \"attackVector\": \"NETWORK\", \"baseSeverity\": \"CRITICAL\", \"vectorString\": \"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H\", \"integrityImpact\": \"HIGH\", \"userInteraction\": \"NONE\", \"attackComplexity\": \"LOW\", \"availabilityImpact\": \"HIGH\", \"privilegesRequired\": \"NONE\", \"confidentialityImpact\": \"HIGH\"}}, {\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2026-5442\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"none\"}, {\"Automatable\": \"yes\"}, {\"Technical Impact\": \"total\"}], \"version\": \"2.0.3\", \"timestamp\": \"2026-04-14T15:12:07.779154Z\"}}}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2026-04-14T15:12:01.918Z\"}}], \"cna\": {\"title\": \"Heap Buffer Overflow in DICOM Image Decoder via VR UL Dimensions\", \"source\": {\"discovery\": \"UNKNOWN\"}, \"affected\": [{\"vendor\": \"Orthanc\", \"product\": \"DICOM Server\", \"versions\": [{\"status\": \"affected\", \"version\": \"0\", \"versionType\": \"custom\", \"lessThanOrEqual\": \"1.12.10\"}]}], \"references\": [{\"url\": \"https://www.orthanc-server.com/\"}, {\"url\": \"https://www.machinespirits.de/\"}, {\"url\": \"https://kb.cert.org/vuls/id/536588\"}], \"x_generator\": {\"env\": \"prod\", \"engine\": \"VINCE 3.0.35\", \"origin\": \"https://cveawg.mitre.org/api/cve/CVE-2026-5442\"}, \"descriptions\": [{\"lang\": \"en\", \"value\": \"A heap buffer overflow vulnerability exists in the DICOM image decoder. Dimension fields are encoded using Value Representation (VR) Unsigned Long (UL), instead of the expected VR Unsigned Short (US), which allows extremely large dimensions to be processed. This causes an integer overflow during frame size calculation and results in out-of-bounds memory access during image decoding.\"}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"description\": \"CWE-190 Integer Overflow or Wraparound\"}]}], \"providerMetadata\": {\"orgId\": \"37e5125f-f79b-445b-8fad-9564f167944b\", \"shortName\": \"certcc\", \"dateUpdated\": \"2026-04-09T14:43:43.571Z\"}}}",
"cveMetadata": "{\"cveId\": \"CVE-2026-5442\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2026-04-14T16:34:39.322Z\", \"dateReserved\": \"2026-04-02T19:22:48.196Z\", \"assignerOrgId\": \"37e5125f-f79b-445b-8fad-9564f167944b\", \"datePublished\": \"2026-04-09T14:43:43.571Z\", \"assignerShortName\": \"certcc\"}",
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
}
}
Loading…
Loading…
Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
- Patched: This vulnerability was successfully patched by the user reporting the sighting.
- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.
Loading…
Loading…