Medium 5.5Published May 27, 2026

CVE-2026-45850ipvs: skip ipv6 extension headers for csum checks

Updated under an hour ago (Oct 28, 2026, 4:40 PM ET)

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No exploitation reported and no EPSS estimate yet.

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Exploited in the last 30 days

In the Linux kernel, the following vulnerability has been resolved: ipvs: skip ipv6 extension headers for csum checks Protocol checksum validation fails for IPv6 if there are extension headers before the protocol header. iph->len already contains its offset, so use it to fix the problem.

CVSS: 5.5 MEDIUM (v3.1, NVD)CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Weakness (CWE): Not given
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: Linux
NVD analysis: Modified
Record last updated: Oct 14, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

Linux Linux linux:linux (from the name)	from 0bbdd42b7efa66685b6d74701bcde3a596a3a59d before 0bf92a90bf05ecafe52e92d5bc15a585021a64ac; from 0bbdd42b7efa66685b6d74701bcde3a596a3a59d before 54add3b7d3c154ca89ef5bac2582b0ed1a3a15d5; from 0bbdd42b7efa66685b6d74701bcde3a596a3a59d before 768f665f3685b455ed686370ed7ccb852a125a3b; from 0bbdd42b7efa66685b6d74701bcde3a596a3a59d before 9aa7edc1347b98774e5167ca34e5b8aa6083bde7; from 0bbdd42b7efa66685b6d74701bcde3a596a3a59d before d643c1ec80b70508f54dac12179e36920e2c00de; from 0bbdd42b7efa66685b6d74701bcde3a596a3a59d before cdce1e797addab72393c0dfee31aaca41ef7d937; from 0bbdd42b7efa66685b6d74701bcde3a596a3a59d before a3ca27762ce8476b4fbf9b2a8f5cb74c38e483e4; from 0bbdd42b7efa66685b6d74701bcde3a596a3a59d before 05cfe9863ef049d98141dc2969eefde72fb07625	CNA record
Siemens SIMATIC S7-1500 TM MFP - GNU/Linux subsystem siemens:simatic_s7_1500_tm_mfp_gnu_linux_subsystem (from the name)	all versions	CISA ADP
linux linux_kernel linux:linux_kernel	from 2.6.28 before 5.10.259; from 5.11 before 5.15.210; from 5.16 before 6.1.176; from 6.2 before 6.6.143; from 6.7 before 6.12.94; from 6.13 before 6.18.36; from 6.19 before 6.19.4	NVD

References

References

https://git.kernel.org/stable/c/0bf92a90bf05ecafe52e92d5bc15a585021a64ac	patch
https://git.kernel.org/stable/c/54add3b7d3c154ca89ef5bac2582b0ed1a3a15d5	patch
https://git.kernel.org/stable/c/768f665f3685b455ed686370ed7ccb852a125a3b	patch
https://git.kernel.org/stable/c/9aa7edc1347b98774e5167ca34e5b8aa6083bde7	patch
https://git.kernel.org/stable/c/d643c1ec80b70508f54dac12179e36920e2c00de	patch
https://git.kernel.org/stable/c/cdce1e797addab72393c0dfee31aaca41ef7d937	patch
https://git.kernel.org/stable/c/a3ca27762ce8476b4fbf9b2a8f5cb74c38e483e4	patch
https://git.kernel.org/stable/c/05cfe9863ef049d98141dc2969eefde72fb07625	patch
https://cert-portal.siemens.com/productcert/html/ssa-784472.html

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.