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CVE-2022-49138

8.8 · HIGH

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: hci_event: Ignore multiple conn complete events When one of the three connection complete events is received multipl…

Published Feb 26, 2025CWE-476EPSS 0.40%

Overview

CVE-2022-49138 is a high-severity vulnerability. It was published on February 26, 2025 and has a CVSS 3.1 base score of 8.8 (HIGH).

This vulnerability has a CVSS 3.1 base score of 8.8, rated HIGH. It requires local or adjacent network access to exploit. No authentication or special privileges are required for exploitation.

Technical description

In the Linux kernel, the following vulnerability has been resolved:

Bluetooth: hci_event: Ignore multiple conn complete events

When one of the three connection complete events is received multiple

times for the same handle, the device is registered multiple times which

leads to memory corruptions. Therefore, consequent events for a single

connection are ignored.

The conn->state can hold different values, therefore HCI_CONN_HANDLE_UNSET

is introduced to identify new connections. To make sure the events do not

contain this or another invalid handle HCI_CONN_HANDLE_MAX and checks

are introduced.

Buglink: https://bugzilla.kernel.org/show_bug.cgi?id=215497

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

Refgit.kernel.org/stable/c/aa1ca580e3ffe62a2c5ea1c095b609b2943c5269Refgit.kernel.org/stable/c/d5ebaa7c5f6f688959e8d40840b2249ede63b8ed

How CyberStrike helps

Frequently asked questions

What is CVE-2022-49138?

CVE-2022-49138 is a high-severity vulnerability. It was published on February 26, 2025 and has a CVSS 3.1 base score of 8.8 (HIGH).

How severe is CVE-2022-49138?

This vulnerability has a CVSS 3.1 base score of 8.8, rated HIGH. It requires local or adjacent network access to exploit. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2022-49138?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2022-49138?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2022-49138 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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