147 lines
6.0 KiB
JSON
147 lines
6.0 KiB
JSON
{
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"dataType": "CVE_RECORD",
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"dataVersion": "5.2",
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"cveMetadata": {
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"cveId": "CVE-2026-49990",
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"assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
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"state": "PUBLISHED",
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"assignerShortName": "GitHub_M",
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"dateReserved": "2026-06-02T18:30:51.282Z",
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"datePublished": "2026-11-13T15:54:22.681Z",
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"dateUpdated": "2026-11-13T21:07:01.534Z"
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},
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"containers": {
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"cna": {
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"title": "BACnet Stack: AtomicReadFile/AtomicWriteFile stream fileStartPosition validation flaw causes out-of-bounds read/write in RAM file backends",
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"problemTypes": [
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{
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"descriptions": [
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{
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"cweId": "CWE-125",
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"lang": "en",
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"description": "CWE-125: Out-of-bounds Read",
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"type": "CWE"
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}
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]
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},
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{
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"descriptions": [
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{
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"cweId": "CWE-787",
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"lang": "en",
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"description": "CWE-787: Out-of-bounds Write",
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"type": "CWE"
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}
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]
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}
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],
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"metrics": [
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{
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"cvssV3_1": {
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"attackComplexity": "LOW",
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"attackVector": "NETWORK",
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"availabilityImpact": "HIGH",
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"baseScore": 8.6,
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"baseSeverity": "HIGH",
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"confidentialityImpact": "LOW",
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"integrityImpact": "LOW",
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"privilegesRequired": "NONE",
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"scope": "UNCHANGED",
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"userInteraction": "NONE",
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"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H",
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"version": "3.1"
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}
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}
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],
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"references": [
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{
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"name": "https://github.com/bacnet-stack/bacnet-stack/security/advisories/GHSA-8759-hx7g-94qx",
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"tags": [
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"x_refsource_CONFIRM"
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],
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"url": "https://github.com/bacnet-stack/bacnet-stack/security/advisories/GHSA-8759-hx7g-94qx"
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},
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{
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"name": "https://github.com/bacnet-stack/bacnet-stack/pull/1362",
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"tags": [
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"x_refsource_MISC"
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],
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"url": "https://github.com/bacnet-stack/bacnet-stack/pull/1362"
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}
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],
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"affected": [
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{
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"vendor": "bacnet-stack",
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"product": "bacnet-stack",
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"versions": [
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{
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"version": ">= 1.4.2, < 1.4.5",
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"status": "affected"
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},
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{
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"version": ">= 1.5.0, < 1.5.1",
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"status": "affected"
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}
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]
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}
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],
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"providerMetadata": {
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"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
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"shortName": "GitHub_M",
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"dateUpdated": "2026-11-13T15:54:22.681Z"
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},
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"descriptions": [
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{
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"lang": "en",
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"value": "BACnet Stack is a BACnet open source protocol stack C library for embedded systems. From versions 1.4.2 to before 1.4.5, and 1.5.0 to before 1.5.1, a signed fileStartPosition taken from AtomicReadFile and AtomicWriteFile stream-access requests is not validated tightly enough before it reaches the RAM file backends. Practical impact includes: reliable denial of service via process crash, out-of-bounds read that may expose adjacent memory contents, or out-of-bounds write that may corrupt heap memory and destabilize the process. This issue has been patched in versions 1.4.5 and 1.5.1."
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}
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],
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"source": {
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"advisory": "GHSA-8759-hx7g-94qx",
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"discovery": "UNKNOWN"
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}
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},
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"adp": [
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{
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"references": [
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{
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"url": "https://github.com/bacnet-stack/bacnet-stack/security/advisories/GHSA-8759-hx7g-94qx",
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"tags": [
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"exploit"
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]
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}
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],
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"metrics": [
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{
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"other": {
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"type": "ssvc",
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"content": {
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"timestamp": "2026-11-13T21:06:41.375503Z",
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"id": "CVE-2026-49990",
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"options": [
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{
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"Exploitation": "poc"
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},
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{
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"Automatable": "yes"
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},
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{
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"Technical Impact": "partial"
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}
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],
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"role": "CISA Coordinator",
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"version": "2.0.3"
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}
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}
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}
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],
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"title": "CISA ADP Vulnrichment",
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"providerMetadata": {
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"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
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"shortName": "CISA-ADP",
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"dateUpdated": "2026-11-13T21:07:01.534Z"
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}
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}
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]
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}
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} |