What is CVE-2026-53095?

CVE-2026-53095 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10, affecting Linux kernel versions from 6.18 onward and patched in 6.18.33, 7.0.10 and 7.1. CVE-2026-53095 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2026-53095?

CVE-2026-53095 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-2026-53095?

Yes, CVE-2026-53095 has been patched. Fixed versions include 6.18.33, 7.0.10 and 7.1. If you are running Linux kernel 6.18 or later up to the fix versions, apply the relevant patch for your kernel branch.

Is CVE-2026-53095 actively exploited?

CVE-2026-53095 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

CVE-2026-53095

Medium

In the Linux kernel, the following vulnerability has been resolved: bpf: Fix abuse of kprobe_write_ctx via freplace uprobe programs are allowed to modify struct pt_regs. Since the actual program type of uprobe is KPROBE, it can be abused to modify struct pt_regs via kprobe+freplace when the kprobe attaches to kernel functions. For example, SEC("?kprobe") int kprobe(struct pt_regs *regs) { return 0; } SEC("?freplace") int freplace_kprobe(struct pt_regs *regs) { regs->di = 0; return 0; } freplace_kprobe prog will attach to kprobe prog. kprobe prog will attach to a kernel function. Without this patch, when the kernel function runs, its first arg will always be set as 0 via the freplace_kprobe prog. To fix the abuse of kprobe_write_ctx=true via kprobe+freplace, disallow attaching freplace programs on kprobe programs with different kprobe_write_ctx values.

Package Linux Kernel

Published 2026-06-24

Last modified 2026-07-21

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 6.18 and later are affected. Fixed in 6.18.33, 7.0.10, 7.1 and their respective stable series.

Affected from

≥ 6.18

Fixed in

✓ 6.18.33 6.18.x ✓ 7.0.10 7.0.x ✓ 7.1

References

3 total

Kernel Git
https://git.kernel.org/stable/c/611fe4b79af72d00d80f2223354284447daafae9

Patch
Kernel Git
https://git.kernel.org/stable/c/9836cadbd96c7e0dbb0018fa60e7872dd31ac4f8

Patch
Kernel Git
https://git.kernel.org/stable/c/b312cf41b9e43f442613053f6cad39898e1baf96

Patch

Details

CVE ID CVE-2026-53095

Severity Medium

CVSS score 5.5 / 10

CVSS version 3.1

Published 2026-06-24

Modified 2026-07-21

KEV No

Patch

Yes

Package linux

Frequently asked questions

What is CVE-2026-53095?

CVE-2026-53095 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10 . It affects Linux kernel versions from 6.18 onward and has been patched in 6.18.33, 7.0.10 and 7.1. CVE-2026-53095 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2026-53095?

CVE-2026-53095 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-2026-53095?

Yes. CVE-2026-53095 has been patched. Fixed versions include 6.18.33, 7.0.10 and 7.1. If you are running Linux kernel 6.18 or later up to the fix versions, apply the relevant patch for your kernel branch.
Is CVE-2026-53095 actively exploited?

No. CVE-2026-53095 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.