CVE-2023-28464

Name: CVE-2023-28464
Creator: NVD / NIST
Published: 2023-03-31T16:15:07.557+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.8/10EPSS 0.27%

Last modified Jun 17, 2026

CVE-2023-28464 is a high-severity vulnerability rated 7.8/10 on the CVSS scale. hci_conn_cleanup in net/bluetooth/hci_conn.c in the Linux kernel through 6.2.9 has a use-after-free (observed in hci_conn_hash_flush) because of calls to hci_dev_put and hci_conn_put. There is a double free that may lead to privilege escalation.. EPSS estimates a 0.27% chance of exploitation in the next 30 days.

Description

hci_conn_cleanup in net/bluetooth/hci_conn.c in the Linux kernel through 6.2.9 has a use-after-free (observed in hci_conn_hash_flush) because of calls to hci_dev_put and hci_conn_put. There is a double free that may lead to privilege escalation.

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

0.27%

19.1th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-415

Affected Software

Vendor	Product	Versions
Linux	Linux Kernel	6.1.25
Linux	Linux Kernel	6.2.12
Linux	Linux Kernel	6.3
Netapp	H300s Firmware	All versions
Netapp	H410c Firmware	All versions
Netapp	H410s Firmware	All versions
Netapp	H500s Firmware	All versions
Netapp	H700s Firmware	All versions

References

https://lore.kernel.org/lkml/20230309074645.74309-1-wzhmmmmm%40gmail.com/Mailing List, Patch
https://security.netapp.com/advisory/ntap-20230517-0004/Third Party Advisory
https://www.openwall.com/lists/oss-security/2023/03/28/2Mailing List, Patch
https://www.openwall.com/lists/oss-security/2023/03/28/3Mailing List
https://lore.kernel.org/lkml/20230309074645.74309-1-wzhmmmmm%40gmail.com/Mailing List, Patch
https://security.netapp.com/advisory/ntap-20230517-0004/Third Party Advisory
https://www.openwall.com/lists/oss-security/2023/03/28/2Mailing List, Patch
https://www.openwall.com/lists/oss-security/2023/03/28/3Mailing List

Timeline

Published: Mar 31, 2023
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2023-28464?

How severe is CVE-2023-28464?

CVE-2023-28464 has a CVSS score of 7.8/10 (HIGH severity). The EPSS model estimates a 0.27% probability of exploitation in the next 30 days.

How do I fix CVE-2023-28464?

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.

Are you affected by CVE-2023-28464?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST