Apache Nimble
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By the Year
In 2026 there have been 6 vulnerabilities in Apache Nimble with an average score of 7.2 out of ten. Nimble did not have any published security vulnerabilities last year. That is, 6 more vulnerabilities have already been reported in 2026 as compared to last year.
| Year | Vulnerabilities | Average Score |
|---|---|---|
| 2026 | 6 | 7.18 |
| 2025 | 0 | 0.00 |
| 2024 | 5 | 0.00 |
It may take a day or so for new Nimble vulnerabilities to show up in the stats or in the list of recent security vulnerabilities. Additionally vulnerabilities may be tagged under a different product or component name.
Recent Apache Nimble Security Vulnerabilities
Apache NimBLE Improper Input Validation in Mesh Proxy SAR Reassembly (<=1.9.0)
CVE-2026-46452
5.3 - Medium
- July 24, 2026
Improper Input Validation vulnerability in Apache NimBLE in Mesh Proxy SAR reassembly could result in passing broken data toward application resulting in memory pressure and unstable parsing behavior. This issue affects Apache NimBLE: through 1.9.0. Users are recommended to upgrade to version 1.10.0, which fixes the issue.
Improper Input Validation
Apache NimBLE <1.9.0: NULL Ptr Deref in LTK Request Event
CVE-2026-45816
7.5 - High
- July 24, 2026
NULL Pointer Dereference vulnerability in Apache NimBLE in LE Long Term Key Request event. This requires disabled asserts (otherwise assert would trigger before NULL dereference) and bogus (or misbehaving) controller, thus severity is low. This issue affects Apache NimBLE: through 1.9.0. Users are recommended to upgrade to version 1.10.0, which fixes the issue.
NULL Pointer Dereference
Apache NimBLE <=1.9.0: Reachable Assertion in ATT Parser via BLE Response
CVE-2026-45815
7.5 - High
- July 24, 2026
Reachable Assertion vulnerability in Apache NimBLE. A specially crafted ATT Read Multiple Variable Response (BLE_ATT_OP_READ_MULT_VAR_RSP) may trigger assert in ATT parser. Severity is medium as this requires DUT to first send ATT Read Multiple Variable Request. This issue affects Apache NimBLE: through 1.9.0. Users are recommended to upgrade to version 1.10.0, which fixes the issue.
assertion failure
Apache NimBLE <=1.9 BASS Service OOB Write & Integer Underflow
CVE-2026-45813
8.8 - High
- July 24, 2026
Out-of-bounds Write, Integer Underflow (Wrap or Wraparound) vulnerability in Apache NimBLE BASS service. Improper validation when parsing BASS service "Add Source" and "Modify Source" operation PDU could results in stack buffer overflow or arbitrary out-of-bound read. This can be triggered by nearby devices over Bluetooth connection, however pairing is required prior to accessing BASS service, which depending on device configuration may or may not require user action. This issue affects Apache NimBLE: through 1.9.0. Users are recommended to upgrade to version 1.10.0, which fixes the issue.
Memory Corruption
Apache NimBLE <1.9.0: Buffer Size Miscalc in HCI Legacy Adv Report
CVE-2026-45812
6.5 - Medium
- July 24, 2026
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.
Incorrect Calculation of Buffer Size
Buffer Copy No Size Check in Apache NimBLE <1.10 HCI Socket
CVE-2026-45811
7.5 - High
- July 24, 2026
Buffer Copy without Checking Size of Input ('Classic Buffer Overflow') vulnerability in Apache NimBLE. The HCI socket transport did not check whether a received HCI event would fit the configured event pool before copying it, allowing a buffer overflow. Severity is low: exploitation requires either a misconfigured pool size or a malicious/compromised controller on the other end of the HCI socket link, not over-the-air Bluetooth access. This issue affects Apache NimBLE: through 1.9.0. Users are recommended to upgrade to version 1.10.0, which fixes the issue.
Classic Buffer Overflow
Apache NimBLE Out-of-Bounds Read Vulnerability in HCI Event Parsing
CVE-2024-51569
- November 26, 2024
Out-of-bounds Read vulnerability in Apache NimBLE. Missing proper validation of HCI Number Of Completed Packets could lead to out-of-bound access when parsing HCI event and invalid read from HCI transport memory. This issue requires broken or bogus Bluetooth controller and thus severity is considered low. This issue affects Apache NimBLE: through 1.7.0. Users are recommended to upgrade to version 1.8.0, which fixes the issue.
Out-of-bounds Read
Apache NimBLE Out-of-Bounds Read Vulnerability in HCI Advertising Report Parsing
CVE-2024-47250
- November 26, 2024
Out-of-bounds Read vulnerability in Apache NimBLE. Missing proper validation of HCI advertising report could lead to out-of-bound access when parsing HCI event and thus bogus GAP 'device found' events being sent. This issue requires broken or bogus Bluetooth controller and thus severity is considered low. This issue affects Apache NimBLE: through 1.7.0. Users are recommended to upgrade to version 1.8.0, which fixes the issue.
Out-of-bounds Read
Apache NimBLE 1.7.0 Out-of-Bound via HCI Event Array Index
CVE-2024-47249
- November 26, 2024
Improper Validation of Array Index vulnerability in Apache NimBLE. Lack of input validation for HCI events from controller could result in out-of-bound memory corruption and crash. This issue requires broken or bogus Bluetooth controller and thus severity is considered low. This issue affects Apache NimBLE: through 1.7.0. Users are recommended to upgrade to version 1.8.0, which fixes the issue.
out-of-bounds array index
Classic Buffer Overflow in Apache NimBLE MESH Message 1.7.0
CVE-2024-47248
- November 26, 2024
Buffer Copy without Checking Size of Input ('Classic Buffer Overflow') vulnerability in Apache NimBLE. Specially crafted MESH message could result in memory corruption when non-default build configuration is used. This issue affects Apache NimBLE: through 1.7.0. Users are recommended to upgrade to version 1.8.0, which fixes the issue.
Classic Buffer Overflow
Apache NimBLE GATT Server Infinite Loop (v1.6.0) DoS
CVE-2024-24746
- April 06, 2024
Loop with Unreachable Exit Condition ('Infinite Loop') vulnerability in Apache NimBLE. Specially crafted GATT operation can cause infinite loop in GATT server leading to denial of service in Bluetooth stack or device. This issue affects Apache NimBLE: through 1.6.0. Users are recommended to upgrade to version 1.7.0, which fixes the issue.
Infinite Loop
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