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CVE-2026-74724

7.8 · HIGH

In the Linux kernel, the following vulnerability has been resolved: ipvs: avoid out-of-bounds write in ip_vs_nat_icmp Sashiko warns that local attacker can modify the packet while it is processed…

Published Aug 22, 2026EPSS 0.12%

Overview

CVE-2026-74724 is a high-severity vulnerability. It was published on August 22, 2026 and has a CVSS 3.1 base score of 7.8 (HIGH).

This vulnerability has a CVSS 3.1 base score of 7.8, rated HIGH. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

Technical description

In the Linux kernel, the following vulnerability has been resolved:

ipvs: avoid out-of-bounds write in ip_vs_nat_icmp

Sashiko warns that local attacker can modify the packet

while it is processed by IPVS. Some places read the

IP ihl field multiple times which can cause out-of-bounds

access. One such place is ip_vs_nat_icmp where we

can write after the validated area.

Fix it by providing ciph argument just like it is done for

IPv6 and use ciph->len as offset to the embedded transport

header.

Modify some IPv4 header checks by reading the ihl field

only once.

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/243d0187ec4c3837b9b0004f18d1068e46115760Refgit.kernel.org/stable/c/3b8f79af0e98f27b932b0b416e9c52b692d31ff9Refgit.kernel.org/stable/c/3c779b258c9c3c3567af68d4f45c2f751f35bd0eRefgit.kernel.org/stable/c/646922a0379496154e8c8faca4f8e2fd9100caccRefgit.kernel.org/stable/c/a69a4b3fff5814d079beff9a1e9d369994b2ed47Refgit.kernel.org/stable/c/be65fa324640c7a95e30b146159a2be5cc73f22e

How CyberStrike helps

Frequently asked questions

What is CVE-2026-74724?

CVE-2026-74724 is a high-severity vulnerability. It was published on August 22, 2026 and has a CVSS 3.1 base score of 7.8 (HIGH).

How severe is CVE-2026-74724?

This vulnerability has a CVSS 3.1 base score of 7.8, rated HIGH. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2026-74724?

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-2026-74724?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2026-74724 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.

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