CVE-2026-45812

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Source

https://cve.org/CVERecord?id=CVE-2026-45812

Import Source

https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-45812.json

JSON Data

https://api.osv.dev/v1/vulns/CVE-2026-45812

Published

2026-07-24T12:09:38.958Z

Modified

2026-07-27T09:24:24.253539Z

Severity

6.5 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N CVSS Calculator

Summary

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

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.

Database specific

{
    "cna_assigner": "apache",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/45xxx/CVE-2026-45812.json",
    "cwe_ids": [
        "CWE-131"
    ]
}

References

Affected packages

Git / github.com/apache/mynewt-nimble

Affected ranges

Type

GIT

Repo

https://github.com/apache/mynewt-nimble

Events

Introduced

Fixed

da7e3256da3ba80b232df880f40d8359311cc62e

Fixed

605c7585408bc3674818eeb7b6f478a8aefe9746

Database specific

{
    "extracted_events": [
        {
            "introduced": "0"
        },
        {
            "fixed": "1.9.0"
        }
    ],
    "source": [
        "DESCRIPTION",
        "REFERENCES"
    ]
}

Affected versions

Other

nimble_1_5_0_rc1_tag

nimble_1_5_0_tag

nimble_1_6_0_rc1_tag

nimble_1_6_0_tag

nimble_1_7_0_rc1_tag

nimble_1_7_0_tag

nimble_1_8_0_rc1_tag

nimble_1_8_0_tag

nimble_1_9_0_rc1_tag

nimble_1_9_0_tag

Database specific

vanir_signatures_modified

"2026-07-27T09:24:24Z"

vanir_signatures

[
    {
        "target": {
            "function": "ble_hs_hci_evt_le_adv_rpt",
            "file": "nimble/host/src/ble_hs_hci_evt.c"
        },
        "id": "CVE-2026-45812-6596c9f5",
        "digest": {
            "function_hash": "286451022204206075651382809087024202963",
            "length": 713.0
        },
        "deprecated": false,
        "signature_version": "v1",
        "signature_type": "Function",
        "source": "https://github.com/apache/mynewt-nimble/commit/605c7585408bc3674818eeb7b6f478a8aefe9746"
    },
    {
        "target": {
            "file": "nimble/host/src/ble_hs_hci_evt.c"
        },
        "id": "CVE-2026-45812-8f006800",
        "digest": {
            "line_hashes": [
                "276275135291356096224778755609241243847",
                "210082262887415638667863251772802729575",
                "250120926130501756986225086871783927028",
                "57553953624760733851515744038294685133"
            ],
            "threshold": 0.9
        },
        "deprecated": false,
        "signature_version": "v1",
        "signature_type": "Line",
        "source": "https://github.com/apache/mynewt-nimble/commit/605c7585408bc3674818eeb7b6f478a8aefe9746"
    }
]

source

"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-45812.json"