What is CVE-2026-46096?

CVE-2026-46096 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10, affecting Linux kernel versions from 6.18.3 onward and patched in 6.18.27, 7.0.4 and 7.1. CVE-2026-46096 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2026-46096?

CVE-2026-46096 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-2026-46096?

Yes, CVE-2026-46096 has been patched. Fixed versions include 6.18.27, 7.0.4 and 7.1. If you are running Linux kernel 6.18.3 or later up to the fix versions, apply the relevant patch for your kernel branch.

Is CVE-2026-46096 actively exploited?

CVE-2026-46096 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

CVE-2026-46096

Medium

In the Linux kernel, the following vulnerability has been resolved: tpm2-sessions: Fix missing tpm_buf_destroy() in tpm2_read_public() tpm2_read_public() calls tpm_buf_init() but fails to call tpm_buf_destroy() on two exit paths, leaking a page allocation: 1. When name_size() returns an error (unrecognized hash algorithm), the function returns directly without destroying the buffer. 2. On the success path, the buffer is never destroyed before returning. All other error paths in the function correctly call tpm_buf_destroy() before returning. Fix both by adding the missing tpm_buf_destroy() calls.

Package Linux Kernel

Published 2026-05-27

Last modified 2026-06-25

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 6.18.3, 6.12.64, 6.19 and later are affected. Fixed in 6.18.27, 7.0.4, 7.1 and their respective stable series.

Affected from

≥ 6.18.3 ≥ 6.12.64 ≥ 6.19

Fixed in

✓ 6.18.27 6.18.x ✓ 7.0.4 7.0.x ✓ 7.1

References

3 total

Kernel Git
https://git.kernel.org/stable/c/2f434be87e256fd58254f60ddf5d7d58e775ca0b

Patch
Kernel Git
https://git.kernel.org/stable/c/f0f75a3d98b7959a8677b6363e23190f3018636b

Patch
Kernel Git
https://git.kernel.org/stable/c/f8775d9d9062da662cc861f9ff7722a65896d4cd

Patch

Details

CVE ID CVE-2026-46096

Severity Medium

CVSS score 5.5 / 10

CVSS version 3.1

Published 2026-05-27

Modified 2026-06-25

KEV No

Patch

Yes

Package linux

Frequently asked questions

What is CVE-2026-46096?

CVE-2026-46096 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10 . It affects Linux kernel versions from 6.18.3 onward and has been patched in 6.18.27, 7.0.4 and 7.1. CVE-2026-46096 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2026-46096?

CVE-2026-46096 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-2026-46096?

Yes. CVE-2026-46096 has been patched. Fixed versions include 6.18.27, 7.0.4 and 7.1. If you are running Linux kernel 6.18.3 or later up to the fix versions, apply the relevant patch for your kernel branch.
Is CVE-2026-46096 actively exploited?

No. CVE-2026-46096 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.