159 lines
6.7 KiB
JSON
159 lines
6.7 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-2026-4930",
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"assignerOrgId": "030b2754-1501-44a4-bef8-48be86a33bf4",
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"state": "PUBLISHED",
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"assignerShortName": "Silabs",
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"dateReserved": "2026-03-26T19:20:56.943Z",
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"datePublished": "2026-06-25T18:39:26.379Z",
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"dateUpdated": "2026-06-25T19:03:41.047Z"
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},
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"containers": {
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"cna": {
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"providerMetadata": {
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"orgId": "030b2754-1501-44a4-bef8-48be86a33bf4",
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"shortName": "Silabs",
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"dateUpdated": "2026-06-25T18:39:26.379Z"
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},
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"title": "DPA Countermeasures weakening on Series 3 devices",
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"problemTypes": [
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{
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"descriptions": [
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{
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"lang": "en",
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"cweId": "CWE-331",
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"description": "CWE-331 Insufficient entropy",
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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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"impacts": [
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{
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"capecId": "CAPEC-97",
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"descriptions": [
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{
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"lang": "en",
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"value": "CAPEC-97 Cryptanalysis"
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}
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]
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}
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],
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"affected": [
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{
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"vendor": "silabs.com",
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"product": "Simplicity SDK",
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"packageName": "SiSDK",
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"versions": [
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{
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"status": "affected",
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"version": "0",
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"lessThanOrEqual": "*.*",
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"versionType": "semver"
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}
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],
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"defaultStatus": "unaffected"
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}
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],
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"descriptions": [
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{
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"lang": "en",
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"value": "SYMCRYPTO is the SiXG301's host side hardware engine accessed by PSA crypto library that accelerates symmetric cryptographic operations (AES encryption/decryption and hashing).\n\n\nDPA Countermeasures on SYMCRYPTO can be weakened (reduced entropy) by forcing certain seed values if an attacker gains code execution capability on the impacted device.\n\n * Therefore, the keys loaded on SYMCRYPTO may be more vulnerable to extraction through DPA attacks than intended",
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"supportingMedia": [
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{
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"type": "text/html",
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"base64": false,
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"value": "SYMCRYPTO is the SiXG301's host side hardware engine accessed by PSA crypto library that accelerates symmetric cryptographic operations (AES encryption/decryption and hashing).\n<br><br><div>DPA Countermeasures on SYMCRYPTO can be weakened (reduced entropy) by forcing certain seed values if an attacker gains code execution capability on the impacted device.\n<br><ul><li>Therefore, the keys loaded on SYMCRYPTO may be more vulnerable to extraction through DPA attacks than intended</li></ul></div>"
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}
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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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"url": "https://community.silabs.com/068Vm00000sjHs3",
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"tags": [
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"third-party-advisory",
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"permissions-required"
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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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"format": "CVSS",
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"scenarios": [
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{
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"lang": "en",
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"value": "GENERAL"
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}
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],
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"cvssV4_0": {
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"attackVector": "PHYSICAL",
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"attackComplexity": "LOW",
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"attackRequirements": "NONE",
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"privilegesRequired": "HIGH",
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"userInteraction": "NONE",
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"vulnConfidentialityImpact": "HIGH",
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"subConfidentialityImpact": "HIGH",
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"vulnIntegrityImpact": "NONE",
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"subIntegrityImpact": "HIGH",
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"vulnAvailabilityImpact": "NONE",
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"subAvailabilityImpact": "HIGH",
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"exploitMaturity": "NOT_DEFINED",
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"Safety": "NOT_DEFINED",
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"Automatable": "NOT_DEFINED",
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"Recovery": "NOT_DEFINED",
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"valueDensity": "NOT_DEFINED",
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"vulnerabilityResponseEffort": "NOT_DEFINED",
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"providerUrgency": "NOT_DEFINED",
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"version": "4.0",
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"baseSeverity": "HIGH",
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"baseScore": 7.1,
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"vectorString": "CVSS:4.0/AV:P/AC:L/AT:N/PR:H/UI:N/VC:H/VI:N/VA:N/SC:H/SI:H/SA:H"
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}
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}
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],
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"source": {
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"discovery": "UNKNOWN"
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},
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"x_generator": {
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"engine": "Vulnogram 1.0.2"
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}
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},
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"adp": [
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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": "2026-06-25T19:03:07.263017Z",
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"id": "CVE-2026-4930",
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"options": [
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{
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"Exploitation": "none"
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},
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{
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"Automatable": "no"
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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": "2026-06-25T19:03:41.047Z"
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}
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}
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]
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}
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} |