CVE-2026-80763
Bluetooth: hci_event: validate LE Set CIG Parameters response
No known exploitation. EPSS puts it in the 7th percentile. Fixed versions are out.
No public exploit knownFix1 product4 fixed builds listed below
e.g. OID 1.3.6.1.4.1.25623.1.1.10.2026.0506
What to do
Find your product and version, then upgrade to the build on the right.
- LinuxAffected: ≥ 26afbd826ee326e63a334c37fd45e82e50a615ec, < 9e05783d0bb96a7b853cc058a7c7de2dc4a62154Upgrade to: 9e05783d0bb96a7b853cc058a7c7de2dc4a62154Affected: ≥ 26afbd826ee326e63a334c37fd45e82e50a615ec, < 26741d178f31932c9018b36b7953e6dc391436a4Upgrade to: 26741d178f31932c9018b36b7953e6dc391436a4Affected: ≥ 26afbd826ee326e63a334c37fd45e82e50a615ec, < a34df5c4a439cfc04565fa5be608ed1e53134f1fUpgrade to: a34df5c4a439cfc04565fa5be608ed1e53134f1fAffected: ≥ 26afbd826ee326e63a334c37fd45e82e50a615ec, < e3f82e8f2a5915f533b57a065e9a045aa2ee03bcUpgrade to: e3f82e8f2a5915f533b57a065e9a045aa2ee03bc + 3 more branchesStated by: CVE record
Versions as the sources state them. Full version matrix after sign-in
What it is
From the CVE record
In 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.
In plain language
No plain-language summary for this CVE yet.
Exploitation
Where each signal puts this CVE on the scale from published to confirmed exploited.
- CISA KEV
Not in the catalog. CISA has not confirmed exploitation.
- Public exploits
No public exploit or proof of concept found in the sources we track.
- EPSS
0.2% chance of exploitation activity in the next 30 days, which ranks it in the 7th percentile of scored CVEs.
Exploit Prediction Scoring System, FIRST.org. A probability, not a confirmation.
Lifecycle
4 events over 45 days, from the signal feeds we watch.
- Record updated
- OpenVAS check added
- Publishedrecord updated
Affected products
Sources
References in the record
- git.kernel.org/stable/c/9e05783d0bb96a7b853cc058a7c7de2dc4a62154
- git.kernel.org/stable/c/26741d178f31932c9018b36b7953e6dc391436a4
- git.kernel.org/stable/c/a34df5c4a439cfc04565fa5be608ed1e53134f1f
And 4 more references. See all after sign-in
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