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CVE-2026-68477

9.8 · CRITICAL

In the Linux kernel, the following vulnerability has been resolved: ipvs: fix more places with wrong ipv6 transport offsets Sashiko reports for more incorrect IPv6 transport offsets.

Published Aug 15, 2026EPSS 0.76%

Overview

CVE-2026-68477 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:

ipvs: fix more places with wrong ipv6 transport offsets

Sashiko reports for more incorrect IPv6 transport offsets.

The app code for TCP was assuming IPv4 network header

even after the ipvsh argument was provided. This can

cause problems with apps over IPv6. As for the only

official app in the kernel tree (FTP) this problem is

harmless because we use Netfilter to mangle the FTP

ports and we do not adjust the TCP seq numbers.

Also, provide correct offset of the ICMPV6 header in

ip_vs_out_icmp_v6() for correct checksum checks when

the IPv6 packet has extension headers.

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/3a9dc9b55b53d94613a587604b77d3b20024090cRefgit.kernel.org/stable/c/613ce63711b8d431bba90781f133c39a21684f87Refgit.kernel.org/stable/c/7350eb7ead172ae8024897d4b0f2e15c5318279cRefgit.kernel.org/stable/c/905d7a363ade96a19f214815361e11981142c547Refgit.kernel.org/stable/c/95d4511d81b2b37e5d2bdde5d912e48243eae517Refgit.kernel.org/stable/c/a3f0d5b605cd5da5c95279969fb8cea4e55cee5bRefgit.kernel.org/stable/c/b3fe4cbd583895987935a9bdad01c8f9d3a02310Refgit.kernel.org/stable/c/d4ec18f48ce78a3bf7c999ac908691007375fe99

How CyberStrike helps

Frequently asked questions

What is CVE-2026-68477?

CVE-2026-68477 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-2026-68477?

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-2026-68477?

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-2026-68477?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2026-68477 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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