Critical severity · published Aug 15, 2026
CVE-2026-68477
ipvs: fix more places with wrong ipv6 transport offsets
9.8
CVSS
0.7%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.7% · higher than 53% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
LI
Linux · Linux
2a3b791e6e1169f374224d164738e9f7be703d77 before 613ce63711b8d431bba90781f133c39a21684f87; 2a3b791e6e1169f374224d164738e9f7be703d77 before 95d4511d81b2b37e5d2bdde5d912e48243eae517; 2a3b791e6e1169f374224d164738e9f7be703d77 before 3a9dc9b55b53d94613a587604b77d3b20024090c; 2a3b791e6e1169f374224d164738e9f7be703d77 before a3f0d5b605cd5da5c95279969fb8cea4e55cee5b; 2a3b791e6e1169f374224d164738e9f7be703d77 before 7350eb7ead172ae8024897d4b0f2e15c5318279c; 2a3b791e6e1169f374224d164738e9f7be703d77 before d4ec18f48ce78a3bf7c999ac908691007375fe99; +3 more · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-68477
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-68477
git.kernel.org
https://git.kernel.org/stable/c/3a9dc9b55b53d94613a587604b77d3b20024090c
git.kernel.org
https://git.kernel.org/stable/c/613ce63711b8d431bba90781f133c39a21684f87
git.kernel.org
https://git.kernel.org/stable/c/7350eb7ead172ae8024897d4b0f2e15c5318279c
git.kernel.org
https://git.kernel.org/stable/c/905d7a363ade96a19f214815361e11981142c547
git.kernel.org
https://git.kernel.org/stable/c/95d4511d81b2b37e5d2bdde5d912e48243eae517
git.kernel.org
https://git.kernel.org/stable/c/a3f0d5b605cd5da5c95279969fb8cea4e55cee5b
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