FKIE_CVE-2026-19293

Vulnerability from fkie_nvd - Published: 2026-08-13 15:19 - Updated: 2026-08-13 18:17
Severity
8.8 (High) - CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
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.
References
product-security@silabs.comhttps://community.silabs.com/068Vm00000x0yyH
product-security@silabs.comhttps://docs.silabs.com/rs9116-wiseconnect/latest/wifibt-wc-release-notes/rs9116-ble-release-notes#bug-fixes
product-security@silabs.comhttps://docs.silabs.com/sisdk-release-notes/latest/sisdk-wifi-release-notes/sisdk-wifible-ble-release-notes
product-security@silabs.comhttps://www.ndss-symposium.org/ndss-paper/blerp-ble-re-pairing-attacks-and-defenses/
Impacted products
Vendor Product Version
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "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"
            }
          ]
        }
      ],
      "source": "product-security@silabs.com"
    }
  ],
  "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."
    }
  ],
  "id": "CVE-2026-19293",
  "lastModified": "2026-08-13T18:17:24.230",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "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"
        },
        "exploitabilityScore": 2.8,
        "impactScore": 5.9,
        "source": "product-security@silabs.com",
        "type": "Secondary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-19293",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "total"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2026-08-13T17:04:23.200962Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2026-08-13T15:19:37.873",
  "references": [
    {
      "source": "product-security@silabs.com",
      "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/"
    }
  ],
  "sourceIdentifier": "product-security@silabs.com",
  "vulnStatus": "Received",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-521"
        }
      ],
      "source": "product-security@silabs.com",
      "type": "Secondary"
    }
  ]
}



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Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
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  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.