What is CVE-2026-53074?

CVE-2026-53074 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10, affecting Linux kernel versions from 5.9 onward and patched in 5.10.258, 5.15.209, 6.1.175 and others. CVE-2026-53074 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2026-53074?

CVE-2026-53074 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-2026-53074?

Yes, CVE-2026-53074 has been patched. Fixed versions include 5.10.258, 5.15.209, 6.1.175 and others. If you are running Linux kernel 5.9 or later up to the fix versions, apply the relevant patch for your kernel branch.

Is CVE-2026-53074 actively exploited?

CVE-2026-53074 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

CVE-2026-53074

Medium

In the Linux kernel, the following vulnerability has been resolved: bpf: reject short IPv4/IPv6 inputs in bpf_prog_test_run_skb bpf_prog_test_run_skb() calls eth_type_trans() first and then uses skb->protocol to initialize sk family and address fields for the test run. For IPv4 and IPv6 packets, it may access ip_hdr(skb) or ipv6_hdr(skb) even when the provided test input only contains an Ethernet header. Reject the input earlier if the Ethernet frame carries IPv4/IPv6 EtherType but the L3 header is too short. Fold the IPv4/IPv6 header length checks into the existing protocol switch and return -EINVAL before accessing the network headers.

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 5.9 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

≥ 5.9

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/0a04db240effd85773f66244645a28cedddb72d2

Patch
Kernel Git
https://git.kernel.org/stable/c/12bec2bd4b76d81c5d3996bd14ec1b7f4d983747

Patch
Kernel Git
https://git.kernel.org/stable/c/1f882c492d46f90bdb36f4936876c88c28dab21c

Patch
Kernel Git
https://git.kernel.org/stable/c/6a9f38d5ff11e00bc54baab752642978805e81eb

Patch
Kernel Git
https://git.kernel.org/stable/c/6def5fe753cbe5b279ee5fd10327b2611cbddaca

Patch

Showing 5 of 8 references View all on NVD

Details

CVE ID CVE-2026-53074

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-2026-53074?

CVE-2026-53074 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10 . It affects Linux kernel versions from 5.9 onward and has been patched in 5.10.258, 5.15.209, 6.1.175 and others. CVE-2026-53074 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2026-53074?

CVE-2026-53074 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-2026-53074?

Yes. CVE-2026-53074 has been patched. Fixed versions include 5.10.258, 5.15.209, 6.1.175 and others. If you are running Linux kernel 5.9 or later up to the fix versions, apply the relevant patch for your kernel branch.
Is CVE-2026-53074 actively exploited?

No. CVE-2026-53074 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.