Go to homepageCyberStrike

Menu

Star on GitHub · 3.2k
Sign inDownload

CVE-2026-74474

9.8 · 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(),…

Published Aug 15, 2026EPSS 0.49%

Overview

CVE-2026-74474 is a critical-severity vulnerability. It was published on August 15, 2026 and has a CVSS 3.1 base score of 9.8 (CRITICAL).

This vulnerability has a CVSS 3.1 base score of 9.8, rated CRITICAL. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical description

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.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

Refgit.kernel.org/stable/c/6146901881f09ef063eb34ad389f63231f8486f5Refgit.kernel.org/stable/c/7076a34b6e33315dc160b4612bfea1c597495585Refgit.kernel.org/stable/c/94dee751aad627b3645d424b5d0c736d394573e9Refgit.kernel.org/stable/c/b9553558b48db54ac9273e6b98d7263ef5c1a329Refgit.kernel.org/stable/c/bb01c51950c3ff3c76acdd54b85ab38ccc2a8bb4

How CyberStrike helps

Frequently asked questions

What is CVE-2026-74474?

CVE-2026-74474 is a critical-severity vulnerability. It was published on August 15, 2026 and has a CVSS 3.1 base score of 9.8 (CRITICAL).

How severe is CVE-2026-74474?

This vulnerability has a CVSS 3.1 base score of 9.8, rated CRITICAL. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2026-74474?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2026-74474?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2026-74474 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

Related CRITICAL CVEs from 2026

View all
Browse by year2026202520242023202220212020201920182017201620152014201320122011201020092008200720062005200420032002200120001999