Vulnerability-Lookup

GHSA-VM4R-7VJX-6F97

Vulnerability from github – Published: 2026-08-13 15:34 – Updated: 2026-08-13 15:34

Details

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.

Severity

8.8 (High)


                  
                    CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

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{
  "affected": [],
  "aliases": [
    "CVE-2026-19293"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-521"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-08-13T15:19:37Z",
    "severity": "HIGH"
  },
  "details": "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": "GHSA-vm4r-7vjx-6f97",
  "modified": "2026-08-13T15:34:42Z",
  "published": "2026-08-13T15:34:42Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-19293"
    },
    {
      "type": "WEB",
      "url": "https://community.silabs.com/068Vm00000x0yyH"
    },
    {
      "type": "WEB",
      "url": "https://docs.silabs.com/rs9116-wiseconnect/latest/wifibt-wc-release-notes/rs9116-ble-release-notes#bug-fixes"
    },
    {
      "type": "WEB",
      "url": "https://docs.silabs.com/sisdk-release-notes/latest/sisdk-wifi-release-notes/sisdk-wifible-ble-release-notes"
    },
    {
      "type": "WEB",
      "url": "https://www.ndss-symposium.org/ndss-paper/blerp-ble-re-pairing-attacks-and-defenses"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}

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

Vulnerability from cvelistv5 – Published: 2026-08-13 14:18 – Updated: 2026-08-13 17:06

Title

SMP security request

Summary

Severity

8.8 (High)


                        
                          CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

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

Assigner

Silabs

References

4 references

URL	Tags
https://docs.silabs.com/sisdk-release-notes/lates…	release-notes
https://docs.silabs.com/rs9116-wiseconnect/latest…	release-notes
https://community.silabs.com/068Vm00000x0yyH
https://www.ndss-symposium.org/ndss-paper/blerp-b…

Impacted products

1 product

Vendor	Product	Version
silabs.com	WiseConnect	Affected: 4.0.0 , < 4.1.0 (semver) Affected: 2.0.0 , < 2.14.0 (semver)

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{
  "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": [
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          "tags": [
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          "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"
}

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.

Detection rules are retrieved from Rulezet.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.

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GHSA-VM4R-7VJX-6F97

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

Tags

Sightings

Nomenclature