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CVE-2026-68392

HIGHCVSS 7.8/10EPSS 0.13%

Last modified

CVE-2026-68392 is a high-severity vulnerability rated 7.8/10 on the CVSS scale. In the Linux kernel, the following vulnerability has been resolved: Bluetooth: mgmt: fix locking in unpair_device/disconnect_sync Dereferencing RCU-protected pointers outside critical sections is invalid and may lead to UAF. Take hdev->lock for hci_conn lookup and hci_abort_conn(). Don't use RCU to ensure the conn is fully initialized at this point.. EPSS estimates a 0.13% chance of exploitation in the next 30 days.

Description

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: mgmt: fix locking in unpair_device/disconnect_sync Dereferencing RCU-protected pointers outside critical sections is invalid and may lead to UAF. Take hdev->lock for hci_conn lookup and hci_abort_conn(). Don't use RCU to ensure the conn is fully initialized at this point.

Metrics

CVSS 3.1
7.8/10

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

EPSS Probability
0.13%

2.9th percentile

Probability of exploitation in the next 30 days. Learn more

Affected Software

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

VendorProductVersions
LinuxLinux>= 7fe4d391e937c2f048a43ff4b421e677f10d83c0, < 74f3e6e21ebc6c418d348f8ce68aef6fe6d82c82; >= 249c88e7fb45b6b705040c5af4bd0d0f2bc9735c, < 8bc83f9ef6789571f399ff631a2a14a12b6d8585; >= 227a0cdf4a028a73dc256d0f5144b4808d718893, < 579faba5ede6df6b7f36777c431dc8dcf9d272e7; >= 227a0cdf4a028a73dc256d0f5144b4808d718893, < ca58ad287bfc5b9d31a72ecb8650289df2b57250; >= 227a0cdf4a028a73dc256d0f5144b4808d718893, < b11511006f9e17000de3f4cadee451364f658ca3; >= 227a0cdf4a028a73dc256d0f5144b4808d718893, < 16cd66443957e4ad42155c6fec401012f600c6f8; 58afdc9b18871eb1d461c725be9e9f3f44a39aeb; >= 6.6.51, < 6.6.148; >= 6.10.10, < 6.11
LinuxLinux6.11

References

Timeline

Published
Last Modified
Status
Received

Frequently Asked Questions

What is CVE-2026-68392?
In the Linux kernel, the following vulnerability has been resolved: Bluetooth: mgmt: fix locking in unpair_device/disconnect_sync Dereferencing RCU-protected pointers outside critical sections is invalid and may lead to UAF. Take hdev->lock for hci_conn lookup and hci_abort_conn(). Don't use RCU to ensure the conn is fully initialized at this point.
How severe is CVE-2026-68392?
CVE-2026-68392 has a CVSS score of 7.8/10 (HIGH severity). The EPSS model estimates a 0.13% probability of exploitation in the next 30 days.
How do I fix CVE-2026-68392?
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