CVE-2026-45813: CWE-787 Out-of-bounds Write in Apache Software Foundation Apache NimBLE
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.
AI Analysis
Technical Summary
This vulnerability in Apache NimBLE's BASS service involves improper input validation that can cause integer underflow and out-of-bounds write conditions. Specifically, parsing of the "Add Source" and "Modify Source" PDUs may trigger stack buffer overflow or out-of-bound memory reads. Exploitation requires a paired Bluetooth connection, limiting attack vectors to nearby devices with pairing established. The flaw affects all versions through 1.9.0 and is fixed in version 1.10.0.
Potential Impact
Successful exploitation can result in stack buffer overflow or arbitrary out-of-bound memory reads, potentially leading to memory corruption or denial of service. Because pairing is required, the attack surface is limited to devices that have established Bluetooth pairing, which may require user action depending on device configuration.
Mitigation Recommendations
Users should upgrade Apache NimBLE to version 1.10.0 or later, where this vulnerability is fixed. No other mitigations are indicated. Patch status is confirmed by the vendor recommendation to upgrade to 1.10.0.
CVE-2026-45813: CWE-787 Out-of-bounds Write in Apache Software Foundation Apache NimBLE
Description
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.
CVSS v3.1
Score 8.8high
Affected software
pkg:github/apache/mynewt-nimbleRun on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability in Apache NimBLE's BASS service involves improper input validation that can cause integer underflow and out-of-bounds write conditions. Specifically, parsing of the "Add Source" and "Modify Source" PDUs may trigger stack buffer overflow or out-of-bound memory reads. Exploitation requires a paired Bluetooth connection, limiting attack vectors to nearby devices with pairing established. The flaw affects all versions through 1.9.0 and is fixed in version 1.10.0.
Potential Impact
Successful exploitation can result in stack buffer overflow or arbitrary out-of-bound memory reads, potentially leading to memory corruption or denial of service. Because pairing is required, the attack surface is limited to devices that have established Bluetooth pairing, which may require user action depending on device configuration.
Mitigation Recommendations
Users should upgrade Apache NimBLE to version 1.10.0 or later, where this vulnerability is fixed. No other mitigations are indicated. Patch status is confirmed by the vendor recommendation to upgrade to 1.10.0.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- apache
- Date Reserved
- 2026-05-13T09:02:11.689Z
- Cvss Version
- null
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a63602d9c2644c7f8f1502c
Added to database: 07/24/2026, 12:53:01 UTC
Last enriched: 07/24/2026, 13:08:20 UTC
Last updated: 07/24/2026, 21:20:24 UTC
Views: 18
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