High
netfilter: conntrack_irc: fix possible out-of-bounds read
In the Linux kernel, the following vulnerability has been resolved: netfilter: conntrack_irc: fix possible out-of-bounds read When parsing fails after we've matched the command string we should bail out instead of trying to match a different command. This helper should be deprecated, given prevalence of TLS I doubt it has any relevance in 2026.
Announced Group revision 1
Original source ↗CVE-2026-53268
Primary source · Revision 1
Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.
Security context
Source reference: cve:CVE-2026-53268
Linux
Source reference: /containers/cna/affected/0/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Linux
Source reference: /containers/cna/affected/1/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Structured affected-version data
Original package identities and version rules from this source.
[
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "869f37d8e48f3911eb70f38a994feaa8f8380008",
"lessThan": "4cdda7f868f48e2f81579371584fdbdce37df2c8",
"versionType": "git"
},
{
"status": "affected",
"version": "869f37d8e48f3911eb70f38a994feaa8f8380008",
"lessThan": "8a1d6e40dedfe1068aee094d851bd69e289c9fd6",
"versionType": "git"
},
{
"status": "affected",
"version": "869f37d8e48f3911eb70f38a994feaa8f8380008",
"lessThan": "0afc802160af0df61ed374fdb97fb34cfe5cdf2f",
"versionType": "git"
},
{
"status": "affected",
"version": "869f37d8e48f3911eb70f38a994feaa8f8380008",
"lessThan": "7c34f91305292083253df6a9f6c8ede02d4ccaea",
"versionType": "git"
},
{
"status": "affected",
"version": "869f37d8e48f3911eb70f38a994feaa8f8380008",
"lessThan": "ddddd8271359961e403d11c90c9ba9fc38914f7e",
"versionType": "git"
},
{
"status": "affected",
"version": "869f37d8e48f3911eb70f38a994feaa8f8380008",
"lessThan": "9e5da2379f968a3ea5a6e38921ab6201576466dc",
"versionType": "git"
},
{
"status": "affected",
"version": "869f37d8e48f3911eb70f38a994feaa8f8380008",
"lessThan": "573810f61bcd6b6815e2ff53bbdd2b9c9d747176",
"versionType": "git"
},
{
"status": "affected",
"version": "869f37d8e48f3911eb70f38a994feaa8f8380008",
"lessThan": "66eba0ffce3b7e11449946b4cbbef8ea36112f56",
"versionType": "git"
}
],
"programFiles": [
"net/netfilter/nf_conntrack_irc.c"
],
"defaultStatus": "unaffected"
},
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "2.6.20"
},
{
"status": "unaffected",
"version": "0",
"lessThan": "2.6.20",
"versionType": "semver"
},
{
"status": "unaffected",
"version": "5.10.259",
"versionType": "semver",
"lessThanOrEqual": "5.10.*"
},
{
"status": "unaffected",
"version": "5.15.210",
"versionType": "semver",
"lessThanOrEqual": "5.15.*"
},
{
"status": "unaffected",
"version": "6.1.176",
"versionType": "semver",
"lessThanOrEqual": "6.1.*"
},
{
"status": "unaffected",
"version": "6.6.143",
"versionType": "semver",
"lessThanOrEqual": "6.6.*"
},
{
"status": "unaffected",
"version": "6.12.94",
"versionType": "semver",
"lessThanOrEqual": "6.12.*"
},
{
"status": "unaffected",
"version": "6.18.36",
"versionType": "semver",
"lessThanOrEqual": "6.18.*"
},
{
"status": "unaffected",
"version": "7.0.13",
"versionType": "semver",
"lessThanOrEqual": "7.0.*"
},
{
"status": "unaffected",
"version": "7.1",
"versionType": "original_commit_for_fix",
"lessThanOrEqual": "*"
}
],
"programFiles": [
"net/netfilter/nf_conntrack_irc.c"
],
"defaultStatus": "affected"
}
]- Related CVEs
- CVE-2026-53268
Source reference:
/cveMetadata/cveId
Publisher severity
high
Source reference: /containers/cna/metrics
- Event
- #40800 · Revision 1
- Added to Heist Feed
- Publisher date