CVE-2026-45850 (GCVE-0-2026-45850)
Vulnerability from cvelistv5
Published
2026-05-27 12:15
Modified
2026-06-19 11:58
Severity ?
VLAI Severity ?
EPSS score ?
Summary
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.
References
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: 0bbdd42b7efa66685b6d74701bcde3a596a3a59d Version: 0bbdd42b7efa66685b6d74701bcde3a596a3a59d Version: 0bbdd42b7efa66685b6d74701bcde3a596a3a59d Version: 0bbdd42b7efa66685b6d74701bcde3a596a3a59d Version: 0bbdd42b7efa66685b6d74701bcde3a596a3a59d Version: 0bbdd42b7efa66685b6d74701bcde3a596a3a59d Version: 0bbdd42b7efa66685b6d74701bcde3a596a3a59d Version: 0bbdd42b7efa66685b6d74701bcde3a596a3a59d |
||
{
"containers": {
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"product": "Linux",
"programFiles": [
"net/netfilter/ipvs/ip_vs_proto_sctp.c",
"net/netfilter/ipvs/ip_vs_proto_tcp.c",
"net/netfilter/ipvs/ip_vs_proto_udp.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
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"versionType": "git"
},
{
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"net/netfilter/ipvs/ip_vs_proto_tcp.c",
"net/netfilter/ipvs/ip_vs_proto_udp.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
"status": "affected",
"version": "2.6.28"
},
{
"lessThan": "2.6.28",
"status": "unaffected",
"version": "0",
"versionType": "semver"
},
{
"lessThanOrEqual": "5.10.*",
"status": "unaffected",
"version": "5.10.259",
"versionType": "semver"
},
{
"lessThanOrEqual": "5.15.*",
"status": "unaffected",
"version": "5.15.210",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.1.*",
"status": "unaffected",
"version": "6.1.176",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.6.*",
"status": "unaffected",
"version": "6.6.143",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.12.*",
"status": "unaffected",
"version": "6.12.94",
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},
{
"lessThanOrEqual": "6.18.*",
"status": "unaffected",
"version": "6.18.36",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.19.*",
"status": "unaffected",
"version": "6.19.4",
"versionType": "semver"
},
{
"lessThanOrEqual": "*",
"status": "unaffected",
"version": "7.0",
"versionType": "original_commit_for_fix"
}
]
}
],
"cpeApplicability": [
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"nodes": [
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"negate": false,
"operator": "OR"
}
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}
],
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nipvs: skip ipv6 extension headers for csum checks\n\nProtocol checksum validation fails for IPv6 if there are extension\nheaders before the protocol header. iph-\u003elen already contains its\noffset, so use it to fix the problem."
}
],
"providerMetadata": {
"dateUpdated": "2026-06-19T11:58:42.748Z",
"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"shortName": "Linux"
},
"references": [
{
"url": "https://git.kernel.org/stable/c/0bf92a90bf05ecafe52e92d5bc15a585021a64ac"
},
{
"url": "https://git.kernel.org/stable/c/54add3b7d3c154ca89ef5bac2582b0ed1a3a15d5"
},
{
"url": "https://git.kernel.org/stable/c/768f665f3685b455ed686370ed7ccb852a125a3b"
},
{
"url": "https://git.kernel.org/stable/c/9aa7edc1347b98774e5167ca34e5b8aa6083bde7"
},
{
"url": "https://git.kernel.org/stable/c/d643c1ec80b70508f54dac12179e36920e2c00de"
},
{
"url": "https://git.kernel.org/stable/c/cdce1e797addab72393c0dfee31aaca41ef7d937"
},
{
"url": "https://git.kernel.org/stable/c/a3ca27762ce8476b4fbf9b2a8f5cb74c38e483e4"
},
{
"url": "https://git.kernel.org/stable/c/05cfe9863ef049d98141dc2969eefde72fb07625"
}
],
"title": "ipvs: skip ipv6 extension headers for csum checks",
"x_generator": {
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}
}
},
"cveMetadata": {
"assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"assignerShortName": "Linux",
"cveId": "CVE-2026-45850",
"datePublished": "2026-05-27T12:15:21.389Z",
"dateReserved": "2026-05-13T15:03:33.079Z",
"dateUpdated": "2026-06-19T11:58:42.748Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
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Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
- Patched: This vulnerability was successfully patched by the user reporting the sighting.
- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.
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