GCVE Workshop - 22 September 2026 (14:00-18:00), Luxembourg Before The Vulnopticon Conference - Registration

CVE-2026-19293 (GCVE-0-2026-19293)

Vulnerability from cvelistv5 – Published: 2026-08-13 14:18 – Updated: 2026-08-13 17:06
VLAI
Title
SMP security request
Summary
SMP security request (from peripheral) does not include the maximum encryption key size supported. Using a key with less than the maximum keysize makes brute-forcing the key easier. See V6 in BLERP paper linked below.
SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-13 17:04 UTC
CWE
  • CWE-521 - Weak password requirements
Impacted products
Vendor Product Version CPE status
silabs.com WiseConnect Affected: 4.0.0 , < 4.1.0 (semver)
Affected: 2.0.0 , < 2.14.0 (semver)
guessed Create a notification for this product.
Show details on NVD website

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-19293",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-08-13T17:04:23.200962Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-08-13T17:06:08.921Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "packageName": "SiSDK",
          "product": "WiseConnect",
          "vendor": "silabs.com",
          "versions": [
            {
              "lessThan": "4.1.0",
              "status": "affected",
              "version": "4.0.0",
              "versionType": "semver"
            },
            {
              "lessThan": "2.14.0",
              "status": "affected",
              "version": "2.0.0",
              "versionType": "semver"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "supportingMedia": [
            {
              "base64": false,
              "type": "text/html",
              "value": "SMP security request (from peripheral)\u0026nbsp;does not include the maximum\nencryption key size supported. Using a key with less than the maximum keysize\nmakes brute-forcing the key easier. See V6 in BLERP paper linked below."
            }
          ],
          "value": "SMP security request (from peripheral)\u00a0does not include the maximum\nencryption key size supported. Using a key with less than the maximum keysize\nmakes brute-forcing the key easier. See V6 in BLERP paper linked below."
        }
      ],
      "impacts": [
        {
          "capecId": "CAPEC-49",
          "descriptions": [
            {
              "lang": "en",
              "value": "CAPEC-49 Password Brute Forcing"
            }
          ]
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "ADJACENT_NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 8.8,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
          "format": "CVSS",
          "scenarios": [
            {
              "lang": "en",
              "value": "GENERAL"
            }
          ]
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-521",
              "description": "CWE-521 Weak password requirements",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-08-13T14:18:05.429Z",
        "orgId": "030b2754-1501-44a4-bef8-48be86a33bf4",
        "shortName": "Silabs"
      },
      "references": [
        {
          "tags": [
            "release-notes"
          ],
          "url": "https://docs.silabs.com/sisdk-release-notes/latest/sisdk-wifi-release-notes/sisdk-wifible-ble-release-notes"
        },
        {
          "tags": [
            "release-notes"
          ],
          "url": "https://docs.silabs.com/rs9116-wiseconnect/latest/wifibt-wc-release-notes/rs9116-ble-release-notes#bug-fixes"
        },
        {
          "url": "https://community.silabs.com/068Vm00000x0yyH"
        },
        {
          "url": "https://www.ndss-symposium.org/ndss-paper/blerp-ble-re-pairing-attacks-and-defenses/"
        }
      ],
      "source": {
        "discovery": "UNKNOWN"
      },
      "title": "SMP security request",
      "x_generator": {
        "engine": "Vulnogram 1.0.4"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "030b2754-1501-44a4-bef8-48be86a33bf4",
    "assignerShortName": "Silabs",
    "cveId": "CVE-2026-19293",
    "datePublished": "2026-08-13T14:18:05.429Z",
    "dateReserved": "2026-08-07T16:21:06.928Z",
    "dateUpdated": "2026-08-13T17:06:08.921Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2026-19293",
      "date": "2026-09-16",
      "epss": "0.00134",
      "percentile": "0.03294"
    },
    "nvd": "{\"cve\":{\"id\":\"CVE-2026-19293\",\"sourceIdentifier\":\"product-security@silabs.com\",\"published\":\"2026-08-13T15:19:37.873\",\"lastModified\":\"2026-09-08T19:12:59.557\",\"vulnStatus\":\"Awaiting Analysis\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"SMP security request (from peripheral)\u00a0does not include the maximum\\nencryption key size supported. Using a key with less than the maximum keysize\\nmakes brute-forcing the key easier. See V6 in BLERP paper linked below.\"}],\"affected\":[{\"source\":\"product-security@silabs.com\",\"affectedData\":[{\"vendor\":\"silabs.com\",\"product\":\"WiseConnect\",\"defaultStatus\":\"unaffected\",\"packageName\":\"SiSDK\",\"versions\":[{\"version\":\"4.0.0\",\"lessThan\":\"4.1.0\",\"versionType\":\"semver\",\"status\":\"affected\"},{\"version\":\"2.0.0\",\"lessThan\":\"2.14.0\",\"versionType\":\"semver\",\"status\":\"affected\"}]}]}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"product-security@silabs.com\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H\",\"baseScore\":8.8,\"baseSeverity\":\"HIGH\",\"attackVector\":\"ADJACENT_NETWORK\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"NONE\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"HIGH\",\"integrityImpact\":\"HIGH\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":2.8,\"impactScore\":5.9}],\"ssvcV203\":[{\"source\":\"134c704f-9b21-4f2e-91b3-4a467353bcc0\",\"ssvcData\":{\"timestamp\":\"2026-08-13T17:04:23.200962Z\",\"id\":\"CVE-2026-19293\",\"options\":[{\"exploitation\":\"none\"},{\"automatable\":\"no\"},{\"technicalImpact\":\"total\"}],\"role\":\"CISA Coordinator\",\"version\":\"2.0.3\"}}]},\"weaknesses\":[{\"source\":\"product-security@silabs.com\",\"type\":\"Secondary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-521\"}]}],\"references\":[{\"url\":\"https://community.silabs.com/068Vm00000x0yyH\",\"source\":\"product-security@silabs.com\"},{\"url\":\"https://docs.silabs.com/rs9116-wiseconnect/latest/wifibt-wc-release-notes/rs9116-ble-release-notes#bug-fixes\",\"source\":\"product-security@silabs.com\"},{\"url\":\"https://docs.silabs.com/sisdk-release-notes/latest/sisdk-wifi-release-notes/sisdk-wifible-ble-release-notes\",\"source\":\"product-security@silabs.com\"},{\"url\":\"https://www.ndss-symposium.org/ndss-paper/blerp-ble-re-pairing-attacks-and-defenses/\",\"source\":\"product-security@silabs.com\"}]}}",
    "vulnrichment": {
      "containers": "{\"adp\": [{\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2026-19293\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"none\"}, {\"Automatable\": \"no\"}, {\"Technical Impact\": \"total\"}], \"version\": \"2.0.3\", \"timestamp\": \"2026-08-13T17:04:23.200962Z\"}}}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2026-08-13T17:05:18.319Z\"}}], \"cna\": {\"title\": \"SMP security request\", \"source\": {\"discovery\": \"UNKNOWN\"}, \"impacts\": [{\"capecId\": \"CAPEC-49\", \"descriptions\": [{\"lang\": \"en\", \"value\": \"CAPEC-49 Password Brute Forcing\"}]}], \"metrics\": [{\"format\": \"CVSS\", \"cvssV3_1\": {\"scope\": \"UNCHANGED\", \"version\": \"3.1\", \"baseScore\": 8.8, \"attackVector\": \"ADJACENT_NETWORK\", \"baseSeverity\": \"HIGH\", \"vectorString\": \"CVSS:3.1/AV:A/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\"}, \"scenarios\": [{\"lang\": \"en\", \"value\": \"GENERAL\"}]}], \"affected\": [{\"vendor\": \"silabs.com\", \"product\": \"WiseConnect\", \"versions\": [{\"status\": \"affected\", \"version\": \"4.0.0\", \"lessThan\": \"4.1.0\", \"versionType\": \"semver\"}, {\"status\": \"affected\", \"version\": \"2.0.0\", \"lessThan\": \"2.14.0\", \"versionType\": \"semver\"}], \"packageName\": \"SiSDK\", \"defaultStatus\": \"unaffected\"}], \"references\": [{\"url\": \"https://docs.silabs.com/sisdk-release-notes/latest/sisdk-wifi-release-notes/sisdk-wifible-ble-release-notes\", \"tags\": [\"release-notes\"]}, {\"url\": \"https://docs.silabs.com/rs9116-wiseconnect/latest/wifibt-wc-release-notes/rs9116-ble-release-notes#bug-fixes\", \"tags\": [\"release-notes\"]}, {\"url\": \"https://community.silabs.com/068Vm00000x0yyH\"}, {\"url\": \"https://www.ndss-symposium.org/ndss-paper/blerp-ble-re-pairing-attacks-and-defenses/\"}], \"x_generator\": {\"engine\": \"Vulnogram 1.0.4\"}, \"descriptions\": [{\"lang\": \"en\", \"value\": \"SMP security request (from peripheral)\\u00a0does not include the maximum\\nencryption key size supported. Using a key with less than the maximum keysize\\nmakes brute-forcing the key easier. See V6 in BLERP paper linked below.\", \"supportingMedia\": [{\"type\": \"text/html\", \"value\": \"SMP security request (from peripheral)\u0026nbsp;does not include the maximum\\nencryption key size supported. Using a key with less than the maximum keysize\\nmakes brute-forcing the key easier. See V6 in BLERP paper linked below.\", \"base64\": false}]}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-521\", \"description\": \"CWE-521 Weak password requirements\"}]}], \"providerMetadata\": {\"orgId\": \"030b2754-1501-44a4-bef8-48be86a33bf4\", \"shortName\": \"Silabs\", \"dateUpdated\": \"2026-08-13T14:18:05.429Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2026-19293\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2026-08-13T17:06:08.921Z\", \"dateReserved\": \"2026-08-07T16:21:06.928Z\", \"assignerOrgId\": \"030b2754-1501-44a4-bef8-48be86a33bf4\", \"datePublished\": \"2026-08-13T14:18:05.429Z\", \"assignerShortName\": \"Silabs\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}



Log in or create an account to share your comment.




Tags
Taxonomy of the tags.


Loading…

Loading…

Loading…

Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Loading…

Detection rules are retrieved from Rulezet.

Loading…

Loading…

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.


Loading…