What is CVE-2026-53087?

CVE-2026-53087 is a High severity Linux kernel vulnerability with a CVSS score of 7.5 out of 10, classified as a Memory Leak flaw (CWE-401), affecting Linux kernel versions from 6.15 onward and patched in 6.18.33, 7.0.10 and 7.1. CVE-2026-53087 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2026-53087?

CVE-2026-53087 has a CVSS score of 7.5 out of 10, rated High severity. The vector string is CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

Is there a patch available for CVE-2026-53087?

Yes, CVE-2026-53087 has been patched. Fixed versions include 6.18.33, 7.0.10 and 7.1. If you are running Linux kernel 6.15 or later up to the fix versions, apply the relevant patch for your kernel branch.

Is CVE-2026-53087 actively exploited?

CVE-2026-53087 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-2026-53087

High

In the Linux kernel, the following vulnerability has been resolved: net: bcmgenet: fix leaking free_bds While reclaiming the tx queue we fast forward the write pointer to drop any data in flight. These dropped frames are not added back to the pool of free bds. We also need to tell the netdev that we are dropping said data.

Package Linux Kernel

Published 2026-06-24

Last modified 2026-07-23

CVSS version 3.1

Patch available

Yes

CVSS 3.1 score

7.5

out of 10

High

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

Low

Integrity

None

Availability

High

Vector string

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

Weakness type

CWE-401

CVE-2026-53087 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

Affected versions

Linux kernel versions 6.15 and later are affected. Fixed in 6.18.33, 7.0.10, 7.1 and their respective stable series.

Affected from

≥ 6.15

Fixed in

✓ 6.18.33 6.18.x ✓ 7.0.10 7.0.x ✓ 7.1

References

6 total

Kernel Git
https://git.kernel.org/stable/c/150d06aae1839a6564ab200ef0e7291c3528bbb0

Patch
Kernel Git
https://git.kernel.org/stable/c/25ff3a3e47ea635ec08dc93e84dd2bfe15abfebb

Patch
Kernel Git
https://git.kernel.org/stable/c/3c3abbcfa05bad17965498ff7cc94c2418fa94b3

Patch
Kernel Git
https://git.kernel.org/stable/c/3f3168300efb839028328d720ab3962f91d6a0d0

Patch
Kernel Git
https://git.kernel.org/stable/c/52b9f80993698138b90e5ca3a72550a2501f2a96

Patch

Showing 5 of 6 references View all on NVD

Details

CVE ID CVE-2026-53087

Severity High

CVSS score 7.5 / 10

CVSS version 3.1

Published 2026-06-24

Modified 2026-07-23

KEV No

Patch

Yes

Package linux

Frequently asked questions

What is CVE-2026-53087?

CVE-2026-53087 is a High severity Linux kernel vulnerability with a CVSS score of 7.5 out of 10 , classified as a Memory Leak flaw (CWE-401) . It affects Linux kernel versions from 6.15 onward and has been patched in 6.18.33, 7.0.10 and 7.1. CVE-2026-53087 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2026-53087?

CVE-2026-53087 has a CVSS score of 7.5 out of 10, rated High severity (CVSS 3.1). The vector string is CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
Is there a patch available for CVE-2026-53087?

Yes. CVE-2026-53087 has been patched. Fixed versions include 6.18.33, 7.0.10 and 7.1. If you are running Linux kernel 6.15 or later up to the fix versions, apply the relevant patch for your kernel branch.
Is CVE-2026-53087 actively exploited?

No. CVE-2026-53087 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.