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GHSA-M9XH-WPCW-QVX9

Vulnerability from github – Published: 2026-07-24 15:33 – Updated: 2026-07-24 21:32

Details

Incorrect Calculation of Buffer Size vulnerability in Apache NimBLE when processing Legacy Advertising Report HCI event.

When a single HCI advertising report event bundles multiple reports, NimBLE miscalculated the offset to the next report. This can cause the host to read past the end of the buffer and deliver a GAP event with bogus data to the application.

Severity is low: NimBLE's own controller never batches multiple reports into one event, so this only matters when NimBLE's host is paired with a third-party controller that does.

This issue affects Apache NimBLE: through 1.9.0.

Users are recommended to upgrade to version 1.10.0, which fixes the issue.

Severity

6.5 (Medium)


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

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{
  "affected": [],
  "aliases": [
    "CVE-2026-45812"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-131"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-07-24T13:18:23Z",
    "severity": "MODERATE"
  },
  "details": "Incorrect Calculation of Buffer Size vulnerability in Apache NimBLE when processing\u00a0Legacy Advertising Report HCI event.\n\nWhen a single HCI advertising report event bundles multiple reports, NimBLE miscalculated the offset to the next report. This can cause the host to read past the end of the buffer and deliver a GAP event with bogus data to the application.\n\nSeverity is low: NimBLE\u0027s own controller never batches multiple reports into one event, so this only matters when NimBLE\u0027s host is paired with a third-party controller that does.\n\nThis issue affects Apache NimBLE: through 1.9.0.\n\nUsers are recommended to upgrade to version 1.10.0, which fixes the issue.",
  "id": "GHSA-m9xh-wpcw-qvx9",
  "modified": "2026-07-24T21:32:21Z",
  "published": "2026-07-24T15:33:01Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-45812"
    },
    {
      "type": "WEB",
      "url": "https://github.com/apache/mynewt-nimble/commit/605c7585408bc3674818eeb7b6f478a8aefe9746"
    },
    {
      "type": "WEB",
      "url": "https://lists.apache.org/thread/rll5m1ly2vg8jr76lp5ohrtspr5vlofy"
    },
    {
      "type": "WEB",
      "url": "http://www.openwall.com/lists/oss-security/2026/07/24/12"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N",
      "type": "CVSS_V3"
    }
  ]
}

CVE-2026-45812 (GCVE-0-2026-45812)

Vulnerability from cvelistv5 – Published: 2026-07-24 12:09 – Updated: 2026-07-24 18:16

Title

Apache NimBLE: OOB Read via sizeof(pointer) in Legacy Advertising Report Handler

Summary

Incorrect Calculation of Buffer Size vulnerability in Apache NimBLE when processing Legacy Advertising Report HCI event. When a single HCI advertising report event bundles multiple reports, NimBLE miscalculated the offset to the next report. This can cause the host to read past the end of the buffer and deliver a GAP event with bogus data to the application. Severity is low: NimBLE's own controller never batches multiple reports into one event, so this only matters when NimBLE's host is paired with a third-party controller that does. This issue affects Apache NimBLE: through 1.9.0. Users are recommended to upgrade to version 1.10.0, which fixes the issue.

Severity

6.5 (Medium)


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

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator (v2.0.3)

CWE

CWE-131 - Incorrect Calculation of Buffer Size

Assigner

apache

References

3 references

URL	Tags
https://github.com/apache/mynewt-nimble/commit/60…	patch
https://lists.apache.org/thread/rll5m1ly2vg8jr76l…	vendor-advisory
http://www.openwall.com/lists/oss-security/2026/0…

Impacted products

1 product

Vendor	Product	Version
Apache Software Foundation	Apache NimBLE	Affected: 0 , ≤ 1.9.0 (semver)

Credits

VulnCheck

Show details on NVD website

JSON

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          "dateUpdated": "2026-07-24T14:34:44.102Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
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        "references": [
          {
            "url": "http://www.openwall.com/lists/oss-security/2026/07/24/12"
          }
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      },
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        "metrics": [
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              "attackComplexity": "LOW",
              "attackVector": "NETWORK",
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              "baseScore": 6.5,
              "baseSeverity": "MEDIUM",
              "confidentialityImpact": "HIGH",
              "integrityImpact": "NONE",
              "privilegesRequired": "LOW",
              "scope": "UNCHANGED",
              "userInteraction": "NONE",
              "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N",
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                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-07-24T18:16:29.252884Z",
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        },
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    "cna": {
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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.

Action not permitted

GHSA-M9XH-WPCW-QVX9

CVE-2026-45812 (GCVE-0-2026-45812)

Tags

Sightings

Nomenclature