What is CVE-2026-52970?

CVE-2026-52970 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10, affecting Linux kernel versions from 5.3 onward and patched in 5.10.258, 5.15.209, 6.1.175 and others. CVE-2026-52970 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2026-52970?

CVE-2026-52970 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-2026-52970?

Yes, CVE-2026-52970 has been patched. Fixed versions include 5.10.258, 5.15.209, 6.1.175 and others. If you are running Linux kernel 5.3 or later up to the fix versions, apply the relevant patch for your kernel branch.

Is CVE-2026-52970 actively exploited?

CVE-2026-52970 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

CVE-2026-52970

Medium

In the Linux kernel, the following vulnerability has been resolved: netfilter: nft_ct: fix missing expect put in obj eval nft_ct_expect_obj_eval() allocates an expectation and may call nf_ct_expect_related(), but never drops its local reference. Add nf_ct_expect_put(exp) before return to balance allocation.

Package Linux Kernel

Published 2026-06-24

Last modified 2026-07-14

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 5.3 and later are affected. Fixed in 5.10.258, 5.15.209, 6.1.175, 6.6.141, 6.12.91, 6.18.33, 7.0.10, 7.1 and their respective stable series.

Affected from

≥ 5.3

Fixed in

✓ 5.10.258 5.10.x ✓ 5.15.209 5.15.x ✓ 6.1.175 6.1.x ✓ 6.6.141 6.6.x ✓ 6.12.91 6.12.x ✓ 6.18.33 6.18.x ✓ 7.0.10 7.0.x ✓ 7.1

References

8 total

Kernel Git
https://git.kernel.org/stable/c/19f94b6fee75b3ef7fbc06f3745b9a771a8a19a4

Patch
Kernel Git
https://git.kernel.org/stable/c/1dced0725e2fae3ac3416274db20a7ff5a46931d

Patch
Kernel Git
https://git.kernel.org/stable/c/26ab32ec73941871c97562ee1f39587950dc3b68

Patch
Kernel Git
https://git.kernel.org/stable/c/2aef1b13d5c0285f340512c6c07eb858fd018fd8

Patch
Kernel Git
https://git.kernel.org/stable/c/7b96242ceedfe249f158419f3254bcee04173ffe

Patch

Showing 5 of 8 references View all on NVD

Details

CVE ID CVE-2026-52970

Severity Medium

CVSS score 5.5 / 10

CVSS version 3.1

Published 2026-06-24

Modified 2026-07-14

KEV No

Patch

Yes

Package linux

Frequently asked questions

What is CVE-2026-52970?

CVE-2026-52970 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10 . It affects Linux kernel versions from 5.3 onward and has been patched in 5.10.258, 5.15.209, 6.1.175 and others. CVE-2026-52970 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2026-52970?

CVE-2026-52970 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-2026-52970?

Yes. CVE-2026-52970 has been patched. Fixed versions include 5.10.258, 5.15.209, 6.1.175 and others. If you are running Linux kernel 5.3 or later up to the fix versions, apply the relevant patch for your kernel branch.
Is CVE-2026-52970 actively exploited?

No. CVE-2026-52970 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.