116 lines
5.3 KiB
JSON
116 lines
5.3 KiB
JSON
{
|
||
"dataType": "CVE_RECORD",
|
||
"dataVersion": "5.2",
|
||
"cveMetadata": {
|
||
"cveId": "CVE-2026-52786",
|
||
"assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
|
||
"state": "PUBLISHED",
|
||
"assignerShortName": "GitHub_M",
|
||
"dateReserved": "2026-06-08T18:02:19.730Z",
|
||
"datePublished": "2026-11-12T19:59:45.264Z",
|
||
"dateUpdated": "2026-11-12T19:59:45.264Z"
|
||
},
|
||
"containers": {
|
||
"cna": {
|
||
"title": "BACnet Stack: malicious ReadPropertyMultiple-ACK with excessive properties causes global-buffer-overflow in ProcessRPMData()",
|
||
"problemTypes": [
|
||
{
|
||
"descriptions": [
|
||
{
|
||
"cweId": "CWE-129",
|
||
"lang": "en",
|
||
"description": "CWE-129: Improper Validation of Array Index",
|
||
"type": "CWE"
|
||
}
|
||
]
|
||
},
|
||
{
|
||
"descriptions": [
|
||
{
|
||
"cweId": "CWE-787",
|
||
"lang": "en",
|
||
"description": "CWE-787: Out-of-bounds Write",
|
||
"type": "CWE"
|
||
}
|
||
]
|
||
}
|
||
],
|
||
"metrics": [
|
||
{
|
||
"cvssV3_1": {
|
||
"attackComplexity": "LOW",
|
||
"attackVector": "NETWORK",
|
||
"availabilityImpact": "HIGH",
|
||
"baseScore": 7.1,
|
||
"baseSeverity": "HIGH",
|
||
"confidentialityImpact": "NONE",
|
||
"integrityImpact": "LOW",
|
||
"privilegesRequired": "NONE",
|
||
"scope": "UNCHANGED",
|
||
"userInteraction": "REQUIRED",
|
||
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:H",
|
||
"version": "3.1"
|
||
}
|
||
}
|
||
],
|
||
"references": [
|
||
{
|
||
"name": "https://github.com/bacnet-stack/bacnet-stack/security/advisories/GHSA-c4q6-7827-mfg6",
|
||
"tags": [
|
||
"x_refsource_CONFIRM"
|
||
],
|
||
"url": "https://github.com/bacnet-stack/bacnet-stack/security/advisories/GHSA-c4q6-7827-mfg6"
|
||
},
|
||
{
|
||
"name": "https://github.com/bacnet-stack/bacnet-stack/pull/1366",
|
||
"tags": [
|
||
"x_refsource_MISC"
|
||
],
|
||
"url": "https://github.com/bacnet-stack/bacnet-stack/pull/1366"
|
||
},
|
||
{
|
||
"name": "https://github.com/bacnet-stack/bacnet-stack/pull/1409",
|
||
"tags": [
|
||
"x_refsource_MISC"
|
||
],
|
||
"url": "https://github.com/bacnet-stack/bacnet-stack/pull/1409"
|
||
}
|
||
],
|
||
"affected": [
|
||
{
|
||
"vendor": "bacnet-stack",
|
||
"product": "bacnet-stack",
|
||
"versions": [
|
||
{
|
||
"version": "< 1.4.5",
|
||
"status": "affected"
|
||
},
|
||
{
|
||
"version": "< 1.5.1",
|
||
"status": "affected"
|
||
},
|
||
{
|
||
"version": "< 1.6.0",
|
||
"status": "affected"
|
||
}
|
||
]
|
||
}
|
||
],
|
||
"providerMetadata": {
|
||
"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
|
||
"shortName": "GitHub_M",
|
||
"dateUpdated": "2026-11-12T19:59:45.264Z"
|
||
},
|
||
"descriptions": [
|
||
{
|
||
"lang": "en",
|
||
"value": "BACnet Stack is a BACnet open source protocol stack C library for embedded systems. Prior to versions 1.4.5, 1.5.1, and 1.6.0, in the official apps/epics client tool on v1.6.0-rc1 (not in the generic BACnet RPM ACK decoder alone) a malicious BACnet/IP endpoint can reply to the EPICS tool’s legitimate ReadPropertyMultiple request with a syntactically valid ReadPropertyMultiple-ACK that contains more heading properties than the tool’s fixed local storage can hold. The response is decoded successfully and later consumed by ProcessRPMData(), which writes property values into a fixed global array using an unbounded linear index. This results in a reproducible global-buffer-overflow in apps/epics/main.c. This is a network-reachable memory corruption in the official epics tool’s response-processing path. The root cause is that apps/epics treats a remotely supplied variable-length RPM property list as if it were a trusted, fixed-size local heading-property set. This issue has been patched in versions 1.4.5, 1.5.1, and 1.6.0."
|
||
}
|
||
],
|
||
"source": {
|
||
"advisory": "GHSA-c4q6-7827-mfg6",
|
||
"discovery": "UNKNOWN"
|
||
}
|
||
}
|
||
}
|
||
} |