CVE-2026-68477 in the critical feed json
ipvs: fix more places with wrong ipv6 transport offsets
published 2026-08-15 2 mo ago modified 2026-10-19 20 d ago also EUVD-2026-59099
- cvss
- 9.8
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.7%
- EPSS 0.7% chance of exploitation in 30 days, percentile 53%
- public exploits
- 0
- none known
Summary
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.
Patch / fix
- Linux Linux 5.10.261, 5.15.212, 6.1.178, 6.6.145, 6.12.97, 6.18.40, 7.1.5, 7.2
- linux Debian 12 6.1.180-1
- linux Debian 13 6.12.100-1
- linux Debian 14 7.1.5-1
debian advisories DEBIAN-CVE-2026-68477
- linux Ubuntu 22.04 LTS 5.15.0-198.208
- linux Ubuntu 24.04 LTS 6.8.0-147.147
- linux Ubuntu 26.04 LTS 7.0.0-34.34
- linux-aws Ubuntu 22.04 LTS 5.15.0-1117.124
- linux-aws Ubuntu 24.04 LTS 6.8.0-1067.70
- linux-aws Ubuntu 26.04 LTS 7.0.0-1013.13
- linux-gcp Ubuntu 22.04 LTS 5.15.0-1118.128
- linux-gcp Ubuntu 24.04 LTS 6.8.0-1071.79
ubuntu advisories UBUNTU-CVE-2026-68477
Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0
- kernel-64kb SLE Module for Basesystem 15 SP7 6.4.0-150700.53.84.1
- kernel-syms SLE Module for Development Tools 15 SP7 6.4.0-150700.53.84.1
- kernel-azure SLE Module for Public Cloud 15 SP7 6.4.0-150700.53.84.1
- kernel-source SLE Module for Development Tools 15 SP7, SLE Module for Basesystem 15 SP7 6.4.0-150700.53.84.1
- kernel-default SLE Workstation Extension 15 SP7, SLE Module for Legacy 15 SP7, SLE Module for Basesystem 15 SP7 +2 more 6.4.0-150700.53.84.1
- kernel-zfcpdump SLE Module for Basesystem 15 SP7 6.4.0-150700.53.84.1
- kernel-obs-build SLE Module for Development Tools 15 SP7 6.4.0-150700.53.84.1
- kernel-default-base SLE Module for Basesystem 15 SP7 6.4.0-150700.53.84.1.150700.17.47.1
suse advisories SUSE-SU-2026:4706-1SUSE-SU-2026:4687-1SUSE-SU-2026:4640-1SUSE-SU-2026:24316-1SUSE-SU-2026:24315-1SUSE-SU-2026:24181-1
- kernel-rt openSUSE Leap 16.0 6.12.0-160000.39.1
- dtb-aarch64 openSUSE Leap 16.0 6.12.0-160000.39.1
- kernel-64kb openSUSE Leap 16.0 6.12.0-160000.39.1
- kernel-syms openSUSE Leap 16.0 6.12.0-160000.39.1
- kernel-azure openSUSE Leap 16.0 6.12.0-160000.39.1
- kernel-obs-qa openSUSE Leap 16.0 6.12.0-160000.39.1
- kernel-source openSUSE Leap 16.0 6.12.0-160000.39.1
- kernel-default openSUSE Leap 16.0 6.12.0-160000.39.1
opensuse advisories openSUSE-SU-2026:22091-1
- git.kernel.org/stable/c/613ce63711b8d431bba90781f133c39a21684f87 commit
- git.kernel.org/stable/c/95d4511d81b2b37e5d2bdde5d912e48243eae517 commit
- git.kernel.org/stable/c/3a9dc9b55b53d94613a587604b77d3b20024090c commit
- git.kernel.org/stable/c/a3f0d5b605cd5da5c95279969fb8cea4e55cee5b commit
- git.kernel.org/stable/c/7350eb7ead172ae8024897d4b0f2e15c5318279c commit
- git.kernel.org/stable/c/d4ec18f48ce78a3bf7c999ac908691007375fe99 commit
- git.kernel.org/stable/c/905d7a363ade96a19f214815361e11981142c547 commit
- git.kernel.org/stable/c/b3fe4cbd583895987935a9bdad01c8f9d3a02310 commit
Vendor advisories
What the vendors themselves say about their products: affected, fixed or not affected, and what to do.
red hat product security vex CVE-2026-68477 updated cvss 5.3
kernel: ipvs: fix more places with wrong ipv6 transport offsets
-
Red Hat Enterprise Linux 6 perf, kernel, python-perf, kernel-kdump, kernel-firmware, kernel-bootwrapper, +1 moreaffected: workaround, no fix planned “Out of support scope”
-
Red Hat Enterprise Linux 7 perf, kernel, bpftool, kernel-rt, python-perf, kernel-kdump, +8 more Red Hat Enterprise Linux 8 perf, kernel, bpftool, kernel-rt, kernel-core, kernel-tools, +29 more Red Hat Enterprise Linux 9 rv, perf, rtla, kernel, bpftool, libperf, +83 more Red Hat Enterprise Linux 10 kernelaffected: workaround, no fix available “Fix deferred”
Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf
CISA SSVC
- Exploitation
- none
- Automatable
- yes
- Technical impact
- total
- Assessed
- 23 d ago
Exploit prediction
0.71% chance of exploitation in the next 30 days, higher than 53% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
Affected products
- Linux Linux
Classification
- Weakness
-
- CWE-20 Improper Input Validation
- Technology feeds
References
- git.kernel.org /stable/c/613ce63711b8d431bba90781f133c39a21684f87
- git.kernel.org /stable/c/95d4511d81b2b37e5d2bdde5d912e48243eae517
- git.kernel.org /stable/c/3a9dc9b55b53d94613a587604b77d3b20024090c
- git.kernel.org /stable/c/a3f0d5b605cd5da5c95279969fb8cea4e55cee5b
- git.kernel.org /stable/c/7350eb7ead172ae8024897d4b0f2e15c5318279c
- git.kernel.org /stable/c/d4ec18f48ce78a3bf7c999ac908691007375fe99
- git.kernel.org /stable/c/905d7a363ade96a19f214815361e11981142c547
- git.kernel.org /stable/c/b3fe4cbd583895987935a9bdad01c8f9d3a02310
Sources
- CVE List CVE-2026-68477
- NVD CVE-2026-68477
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.