CVE-2026-68477

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.

CVSS v3 9.8 CRITICAL

9.8^/10

CVSS v3 : CRITICAL

Vector :

Exploitability : 3.9 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://git.kernel.org/stable/c/3a9dc9b55b53d94613a587604b77d3b20024090c
https://git.kernel.org/stable/c/613ce63711b8d431bba90781f133c39a21684f87
https://git.kernel.org/stable/c/7350eb7ead172ae8024897d4b0f2e15c5318279c
https://git.kernel.org/stable/c/905d7a363ade96a19f214815361e11981142c547
https://git.kernel.org/stable/c/95d4511d81b2b37e5d2bdde5d912e48243eae517
https://git.kernel.org/stable/c/a3f0d5b605cd5da5c95279969fb8cea4e55cee5b
https://git.kernel.org/stable/c/b3fe4cbd583895987935a9bdad01c8f9d3a02310
https://git.kernel.org/stable/c/d4ec18f48ce78a3bf7c999ac908691007375fe99

Configurations

No configuration.

History

No history.

Information

Published : 2026-08-15 06:20

Updated : 2026-08-17 06:17

NVD link : CVE-2026-68477

Mitre link : CVE-2026-68477

CVE.ORG link : CVE-2026-68477

JSON object : View

Products Affected

No product.

CWE

No CWE.

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This can\ncause problems with apps over IPv6. As for the only\nofficial app in the kernel tree (FTP) this problem is\nharmless because we use Netfilter to mangle the FTP\nports and we do not adjust the TCP seq numbers.\n\nAlso, provide correct offset of the ICMPV6 header in\nip_vs_out_icmp_v6() for correct checksum checks when\nthe IPv6 packet has extension headers."}], "lastModified": "2026-08-17T06:17:57.187", "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}