Vulnerability 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 Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Apache | Nimble | < 1.10.0 |
Related Weaknesses (CWE)
References
- https://github.com/apache/mynewt-nimble/pull/2232Issue TrackingPatch
- https://lists.apache.org/thread/vc1ny73w243z5wr6t0y10gc6t2c9cytwMailing ListVendor Advisory
- http://www.openwall.com/lists/oss-security/2026/07/24/13Mailing ListThird Party Advisory
FAQ
What is CVE-2026-45813?
CVE-2026-45813 is a vulnerability with a CVSS score of 8.8 (HIGH). 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 c...
How severe is CVE-2026-45813?
CVE-2026-45813 has been rated HIGH with a CVSS base score of 8.8/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-45813?
Check the references section above for vendor advisories and patch information. Affected products include: Apache Nimble.