What is CVE-2026-74474?

CVE-2026-74474 is a Critical severity Linux kernel vulnerability with a CVSS score of 9.8 out of 10, affecting Linux kernel versions from 3.8 onward and patched in 6.1.188, 6.6.153, 6.12.105 and others. CVE-2026-74474 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2026-74474?

CVE-2026-74474 has a CVSS score of 9.8 out of 10, rated Critical severity. The vector string is CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

Is there a patch available for CVE-2026-74474?

Yes, CVE-2026-74474 has been patched. Fixed versions include 6.1.188, 6.6.153, 6.12.105 and others. If you are running Linux kernel 3.8 or later up to the fix versions, apply the relevant patch for your kernel branch.

Is CVE-2026-74474 actively exploited?

CVE-2026-74474 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

CVE-2026-74474

Critical

In the Linux kernel, the following vulnerability has been resolved: vxlan: use pskb_network_may_pull() for transmit path header pulls In vxlan_xmit(), arp_reduce(), and vxlan_mdb_entry_skb_get(), pskb_may_pull() was being called to verify the availability of network layer headers (ARP, IPv6/ND, IP/IPv6 MDB keys). However, during transmit skb->data points to the MAC header, so skb_network_offset(skb) is ETH_HLEN (14 bytes). Using pskb_may_pull(skb, len) only checks len bytes from skb->data rather than skb_network_offset(skb) + len, which can leave part of the network header in non-linear frags. Replace these remaining pskb_may_pull() calls with pskb_network_may_pull() to properly account for the MAC header offset.

Package Linux Kernel

Published 2026-08-15

Last modified 2026-09-14

CVSS version 3.1

Patch available

Yes

CVSS 3.1 score

9.8

out of 10

Critical

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Vector string

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

Affected versions

Linux kernel versions 3.8 and later are affected. Fixed in 6.1.188, 6.6.153, 6.12.105, 6.18.44, 7.1.8, 7.2 and their respective stable series.

Affected from

≥ 3.8

Fixed in

✓ 6.1.188 6.1.x ✓ 6.6.153 6.6.x ✓ 6.12.105 6.12.x ✓ 6.18.44 6.18.x ✓ 7.1.8 7.1.x ✓ 7.2

References

6 total

Showing 5 of 6 references View all on NVD

Details

CVE ID CVE-2026-74474

Severity Critical

CVSS score 9.8 / 10

CVSS version 3.1

Published 2026-08-15

Modified 2026-09-14

KEV No

Patch

Yes

Package linux

Frequently asked questions

What is CVE-2026-74474?

CVE-2026-74474 is a Critical severity Linux kernel vulnerability with a CVSS score of 9.8 out of 10 . It affects Linux kernel versions from 3.8 onward and has been patched in 6.1.188, 6.6.153, 6.12.105 and others. CVE-2026-74474 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2026-74474?

CVE-2026-74474 has a CVSS score of 9.8 out of 10, rated Critical severity (CVSS 3.1). The vector string is CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
Is there a patch available for CVE-2026-74474?

Yes. CVE-2026-74474 has been patched. Fixed versions include 6.1.188, 6.6.153, 6.12.105 and others. If you are running Linux kernel 3.8 or later up to the fix versions, apply the relevant patch for your kernel branch.
Is CVE-2026-74474 actively exploited?

No. CVE-2026-74474 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.