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CVE-2026-80692

HIGHCVSS 8.8/10EPSS 0.38%

Last modified

CVE-2026-80692 is a high-severity vulnerability rated 8.8/10 on the CVSS scale. In the Linux kernel, the following vulnerability has been resolved: Bluetooth: hci_sync: hold conn in hci_connect_acl/le_sync() callbacks There is theoretical UAF if the conn is freed while the hci_sync task is running. Hold refcount to avoid that.. EPSS estimates a 0.38% chance of exploitation in the next 30 days.

Description

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: hci_sync: hold conn in hci_connect_acl/le_sync() callbacks There is theoretical UAF if the conn is freed while the hci_sync task is running. Hold refcount to avoid that.

Metrics

CVSS 3.1
8.8/10

CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS Probability
0.38%

29.9th percentile

Probability of exploitation in the next 30 days. Learn more

Affected Software

Source: CNA advisory (CVE.org). NVD analysis pending.

VendorProductVersions
LinuxLinux>= 881559af5f5c545f6828e7c74d79813eb886d523, < a4de6fc95b2f36967fc247ae51cad2171194f7cd; >= 881559af5f5c545f6828e7c74d79813eb886d523, < 9a77f296aff4b2ca5f2928ab3a3220c82d8b4074; >= 881559af5f5c545f6828e7c74d79813eb886d523, < 2f5d635ad5906b0235bc0c870e8beba3116e1e98; d948e1ffa1d40240d5c81af6dcbcb87b39cb8d3c; 5dd0bd277a0a936708a33ecc447dce77a08cbde6; >= 6.6.51, < 6.7; >= 6.8.9, < 6.9
LinuxLinux6.9

References

Timeline

Published
Last Modified
Status
Received

Frequently Asked Questions

What is CVE-2026-80692?
In the Linux kernel, the following vulnerability has been resolved: Bluetooth: hci_sync: hold conn in hci_connect_acl/le_sync() callbacks There is theoretical UAF if the conn is freed while the hci_sync task is running. Hold refcount to avoid that.
How severe is CVE-2026-80692?
CVE-2026-80692 has a CVSS score of 8.8/10 (HIGH severity). The EPSS model estimates a 0.38% probability of exploitation in the next 30 days.
How do I fix CVE-2026-80692?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

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Source: NVD / NIST