What is CVE-2022-26878?

CVE-2022-26878 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10, classified as a Memory Leak flaw (CWE-401). CVE-2022-26878 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2022-26878?

CVE-2022-26878 has a CVSS score of 5.5 out of 10, rated Medium severity. The vector string is CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.

Is there a patch available for CVE-2022-26878?

No patch is currently available for CVE-2022-26878. Monitor the NIST NVD and your Linux distribution's security advisories for updates.

Is CVE-2022-26878 actively exploited?

CVE-2022-26878 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is Memory Leak (CWE-401)?

The product does not release memory after use, causing gradual resource exhaustion. See MITRE CWE for full details: https://cwe.mitre.org/data/definitions/401.html

CVE-2022-26878

Medium

drivers/bluetooth/virtio_bt.c in the Linux kernel before 5.16.3 has a memory leak (socket buffers have memory allocated but not freed).

Package Linux Kernel

Published 2022-03-11

Last modified 2025-05-05

CVSS version 3.1

Patch available

Awaiting data

CVSS 3.1 score

5.5

out of 10

Medium

Attack Vector

Local

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

Low

Integrity

None

Availability

High

Vector string

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

Weakness type

CWE-401

CVE-2022-26878 is a Memory Leak vulnerability

What is Memory Leak?

The product does not release memory after use, causing gradual resource exhaustion. Learn more on MITRE CWE

References

The following references provide additional information about CVE-2022-26878 including vendor advisories, patch commits, exploit details, and third-party analysis. Links are sourced from the NIST NVD database.

Kernel.org
https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15.17

Release Notes Vendor Advisory
Kernel.org
https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.16.3

Release Notes Vendor Advisory
Kernel patch commit
http://www.openwall.com/lists/oss-security/2022/03/11/1
Patch
Kernel patch commit
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=1d0688421449718c6c5f46e458a378c9b530ba18
Patch
Kernel patch commit
https://lore.kernel.org/linux-bluetooth/1A203F5E-FB5E-430C-BEA3-86B191D69D58%40holtmann.org/
Patch

Details

CVE ID CVE-2022-26878

Severity Medium

CVSS score 5.5 / 10

CVSS version 3.1

Published 2022-03-11

Modified 2025-05-05

KEV No

Patch Awaiting data

Package linux

Frequently asked questions

What is CVE-2022-26878?

CVE-2022-26878 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10 , classified as a Memory Leak flaw (CWE-401) . CVE-2022-26878 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2022-26878?

CVE-2022-26878 has a CVSS score of 5.5 out of 10, rated Medium severity (CVSS 3.1). The vector string is CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.
Is there a patch available for CVE-2022-26878?

No patch is currently available for CVE-2022-26878. Monitor the NIST NVD and your Linux distribution's security advisories for updates.
Is CVE-2022-26878 actively exploited?

No — CVE-2022-26878 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.
What is Memory Leak (CWE-401)?

The product does not release memory after use, causing gradual resource exhaustion. View CWE-401 on MITRE CWE →