What is CVE-2023-53297?

CVE-2023-53297 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10, affecting Linux kernel versions from 4.14.313 onward and patched in 4.14.316, 4.19.284, 5.4.244 and others. CVE-2023-53297 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2023-53297?

CVE-2023-53297 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-2023-53297?

Yes, CVE-2023-53297 has been patched. Fixed versions include 4.14.316, 4.19.284, 5.4.244 and others. If you are running Linux kernel 4.14.313 or later up to the fix versions, apply the relevant patch for your kernel branch.

Is CVE-2023-53297 actively exploited?

CVE-2023-53297 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

CVE-2023-53297

Medium

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: L2CAP: fix "bad unlock balance" in l2cap_disconnect_rsp conn->chan_lock isn't acquired before l2cap_get_chan_by_scid, if l2cap_get_chan_by_scid returns NULL, then 'bad unlock balance' is triggered.

Package Linux Kernel

Published 2025-09-16

Last modified 2026-01-14

CVSS version 3.1

Patch available

Yes

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

Affected versions

Linux kernel versions 4.14.313, 4.19.281, 5.4.241, 5.10.178, 5.15.108, 6.1.25, 6.2.12, 6.3 and later are affected. Fixed in 4.14.316, 4.19.284, 5.4.244, 5.10.181, 5.15.113, 6.1.30, 6.3.4, 6.4 and their respective stable series.

Affected from

≥ 4.14.313 ≥ 4.19.281 ≥ 5.4.241 ≥ 5.10.178 ≥ 5.15.108 ≥ 6.1.25 ≥ 6.2.12 ≥ 6.3

Fixed in

✓ 4.14.316 4.14.x ✓ 4.19.284 4.19.x ✓ 5.4.244 5.4.x ✓ 5.10.181 5.10.x ✓ 5.15.113 5.15.x ✓ 6.1.30 6.1.x ✓ 6.3.4 6.3.x ✓ 6.4

References

The following references provide additional information about CVE-2023-53297 including vendor advisories, patch commits, exploit details, and third-party analysis. Links are sourced from the NIST NVD database.

Kernel patch commit
https://git.kernel.org/stable/c/116b9c002c894097adc2b8684db2d1da4229ed46
Patch
Kernel patch commit
https://git.kernel.org/stable/c/2112c4c47d36bc5aba3ddeb9afedce6ae6a67e7d
Patch
Kernel patch commit
https://git.kernel.org/stable/c/25e97f7b1866e6b8503be349eeea44bb52d661ce
Patch

8 patch commits total View all on NVD

Details

CVE ID CVE-2023-53297

Severity Medium

CVSS score 5.5 / 10

CVSS version 3.1

Published 2025-09-16

Modified 2026-01-14

KEV No

Patch

Yes

Package linux

Frequently asked questions

What is CVE-2023-53297?

CVE-2023-53297 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10 . It affects Linux kernel versions from 4.14.313 onward and has been patched in 4.14.316, 4.19.284, 5.4.244 and others. CVE-2023-53297 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2023-53297?

CVE-2023-53297 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-2023-53297?

Yes — CVE-2023-53297 has been patched. Fixed versions include 4.14.316, 4.19.284, 5.4.244 and others. If you are running Linux kernel 4.14.313 or later up to the fix versions, apply the relevant patch for your kernel branch.
Is CVE-2023-53297 actively exploited?

No — CVE-2023-53297 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.