CVE-2026-80763
N/AIn the Linux kernel, the following vulnerability has been resolved: Bluetooth: hci_event: validate LE Set CIG Parameters response The Command Complete dispatch validates only the fixed part of the LE Set CIG Parameters response. After that part is pulled from the skb, hci_cc_le_set_cig_params() trusts num_handles and reads each entry in the trailing handle array. Matching num_handles against the command's num_cis does not guarantee that the response contains the advertised handles. A truncated response from a malfunctioning controller can therefore make the handler read beyond the skb data. Validate that the remaining skb data contains all advertised handles. Include this in the existing response validation so malformed responses also follow the established CIG failure handling.
No known exploitation, public exploit, or elevated probability at this time. Track for changes.
Exploitation likelihood
—EPSS not yet scored
Impact if exploited
—CVSS · not scored
- No impact metrics
Proof of concept & exploit code
- github-search Search GitHub for public PoC repos
Test against your own equipment
curl -s https://vulnpedia.com/cve/CVE-2026-80763/poc.jsonMachine-readable PoC index for this CVE (for automation).Listed for defensive triage, patch verification, and authorized testing on systems you own. Machine-readable: /cve/CVE-2026-80763/poc.json
References
Technical & other
- https://git.kernel.org/stable/c/9e05783d0bb96a7b853cc058a7c7de2dc4a62154
- https://git.kernel.org/stable/c/26741d178f31932c9018b36b7953e6dc391436a4
- https://git.kernel.org/stable/c/a34df5c4a439cfc04565fa5be608ed1e53134f1f
- https://git.kernel.org/stable/c/e3f82e8f2a5915f533b57a065e9a045aa2ee03bc
- https://git.kernel.org/stable/c/d83ecb7b96105d932dabaa56ccd7418c25fb7cbb
- https://git.kernel.org/stable/c/6fc540e835dddb518cef3ff522b780f701cd03df
- https://git.kernel.org/stable/c/0acd4eeb4b225b9bebbf9ef96cc10cdd79b94899