High severity8.2NVD Advisory· Published Jun 25, 2026· Updated Sep 8, 2026
CVE-2026-53268
CVE-2026-53268
Description
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.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
103cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*+ 7 more
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*range: >=2.6.20,<5.10.259
- cpe:2.3:o:linux:linux_kernel:7.1:rc1:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:7.1:rc2:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:7.1:rc3:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:7.1:rc4:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:7.1:rc5:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:7.1:rc6:*:*:*:*:*:*
- (no CPE)
- osv-coords95 versionspkg:apk/chainguard/linux-azure-6.18pkg:apk/chainguard/linux-gcp-6.18pkg:apk/chainguard/linux-gcp-6.18-bootc-boot-installedpkg:apk/chainguard/linux-qemu-6.18pkg:apk/chainguard/linux-qemu-6.18-bootc-boot-installedpkg:apk/chainguard/linux-qemu-melangepkg:linux/kernelpkg:rpm/almalinux/bpftoolpkg:rpm/almalinux/kernelpkg:rpm/almalinux/kernel-64kpkg:rpm/almalinux/kernel-64k-corepkg:rpm/almalinux/kernel-64k-debugpkg:rpm/almalinux/kernel-64k-debug-corepkg:rpm/almalinux/kernel-64k-debug-develpkg:rpm/almalinux/kernel-64k-debug-devel-matchedpkg:rpm/almalinux/kernel-64k-debug-modulespkg:rpm/almalinux/kernel-64k-debug-modules-corepkg:rpm/almalinux/kernel-64k-debug-modules-extrapkg:rpm/almalinux/kernel-64k-develpkg:rpm/almalinux/kernel-64k-devel-matchedpkg:rpm/almalinux/kernel-64k-modulespkg:rpm/almalinux/kernel-64k-modules-corepkg:rpm/almalinux/kernel-64k-modules-extrapkg:rpm/almalinux/kernel-abi-stablelistspkg:rpm/almalinux/kernel-corepkg:rpm/almalinux/kernel-cross-headerspkg:rpm/almalinux/kernel-debugpkg:rpm/almalinux/kernel-debug-corepkg:rpm/almalinux/kernel-debug-develpkg:rpm/almalinux/kernel-debug-devel-matchedpkg:rpm/almalinux/kernel-debug-modulespkg:rpm/almalinux/kernel-debug-modules-corepkg:rpm/almalinux/kernel-debug-modules-extrapkg:rpm/almalinux/kernel-debug-uki-virtpkg:rpm/almalinux/kernel-develpkg:rpm/almalinux/kernel-devel-matchedpkg:rpm/almalinux/kernel-docpkg:rpm/almalinux/kernel-headerspkg:rpm/almalinux/kernel-modulespkg:rpm/almalinux/kernel-modules-corepkg:rpm/almalinux/kernel-modules-extrapkg:rpm/almalinux/kernel-rtpkg:rpm/almalinux/kernel-rt-64kpkg:rpm/almalinux/kernel-rt-64k-corepkg:rpm/almalinux/kernel-rt-64k-debugpkg:rpm/almalinux/kernel-rt-64k-debug-corepkg:rpm/almalinux/kernel-rt-64k-debug-develpkg:rpm/almalinux/kernel-rt-64k-debug-modulespkg:rpm/almalinux/kernel-rt-64k-debug-modules-corepkg:rpm/almalinux/kernel-rt-64k-debug-modules-extrapkg:rpm/almalinux/kernel-rt-64k-develpkg:rpm/almalinux/kernel-rt-64k-modulespkg:rpm/almalinux/kernel-rt-64k-modules-corepkg:rpm/almalinux/kernel-rt-64k-modules-extrapkg:rpm/almalinux/kernel-rt-corepkg:rpm/almalinux/kernel-rt-debugpkg:rpm/almalinux/kernel-rt-debug-corepkg:rpm/almalinux/kernel-rt-debug-develpkg:rpm/almalinux/kernel-rt-debug-modulespkg:rpm/almalinux/kernel-rt-debug-modules-corepkg:rpm/almalinux/kernel-rt-debug-modules-extrapkg:rpm/almalinux/kernel-rt-develpkg:rpm/almalinux/kernel-rt-modulespkg:rpm/almalinux/kernel-rt-modules-corepkg:rpm/almalinux/kernel-rt-modules-extrapkg:rpm/almalinux/kernel-toolspkg:rpm/almalinux/kernel-tools-libspkg:rpm/almalinux/kernel-tools-libs-develpkg:rpm/almalinux/kernel-uki-virtpkg:rpm/almalinux/kernel-uki-virt-addonspkg:rpm/almalinux/kernel-zfcpdumppkg:rpm/almalinux/kernel-zfcpdump-corepkg:rpm/almalinux/kernel-zfcpdump-develpkg:rpm/almalinux/kernel-zfcpdump-devel-matchedpkg:rpm/almalinux/kernel-zfcpdump-modulespkg:rpm/almalinux/kernel-zfcpdump-modules-corepkg:rpm/almalinux/kernel-zfcpdump-modules-extrapkg:rpm/almalinux/libperfpkg:rpm/almalinux/perfpkg:rpm/almalinux/python3-perfpkg:rpm/almalinux/rtlapkg:rpm/almalinux/rvpkg:rpm/opensuse/dtb-aarch64&distro=openSUSE%20Leap%2016.0pkg:rpm/opensuse/kernel-64kb&distro=openSUSE%20Leap%2016.0pkg:rpm/opensuse/kernel-azure&distro=openSUSE%20Leap%2016.0pkg:rpm/opensuse/kernel-default&distro=openSUSE%20Leap%2016.0pkg:rpm/opensuse/kernel-default-base&distro=openSUSE%20Leap%2016.0pkg:rpm/opensuse/kernel-docs&distro=openSUSE%20Leap%2016.0pkg:rpm/opensuse/kernel-kvmsmall&distro=openSUSE%20Leap%2016.0pkg:rpm/opensuse/kernel-obs-build&distro=openSUSE%20Leap%2016.0pkg:rpm/opensuse/kernel-obs-qa&distro=openSUSE%20Leap%2016.0pkg:rpm/opensuse/kernel-rt&distro=openSUSE%20Leap%2016.0pkg:rpm/opensuse/kernel-source&distro=openSUSE%20Leap%2016.0pkg:rpm/opensuse/kernel-syms&distro=openSUSE%20Leap%2016.0pkg:rpm/opensuse/kernel-zfcpdump&distro=openSUSE%20Leap%2016.0
< 6.18.38-r0+ 94 more
- (no CPE)range: < 6.18.38-r0
- (no CPE)range: < 6.18.38-r0
- (no CPE)range: < 6.18.38-r0
- (no CPE)range: < 6.18.38-r0
- (no CPE)range: < 6.18.38-r0
- (no CPE)range: < 6.18.38-r0
- (no CPE)range: >= 2.6.20, < 5.10.259
- (no CPE)range: < 4.18.0-553.164.1.el8_10
- (no CPE)range: < 5.14.0-687.42.1.el9_8
- (no CPE)range: < 5.14.0-687.42.1.el9_8
- (no CPE)range: < 5.14.0-687.42.1.el9_8
- (no CPE)range: < 5.14.0-687.42.1.el9_8
- (no CPE)range: < 5.14.0-687.42.1.el9_8
- (no CPE)range: < 5.14.0-687.42.1.el9_8
- (no CPE)range: < 5.14.0-687.42.1.el9_8
- (no CPE)range: < 5.14.0-687.42.1.el9_8
- (no CPE)range: < 5.14.0-687.42.1.el9_8
- (no CPE)range: < 5.14.0-687.42.1.el9_8
- (no CPE)range: < 5.14.0-687.42.1.el9_8
- (no CPE)range: < 5.14.0-687.42.1.el9_8
- (no CPE)range: < 5.14.0-687.42.1.el9_8
- (no CPE)range: < 5.14.0-687.42.1.el9_8
- (no CPE)range: < 5.14.0-687.42.1.el9_8
- (no CPE)range: < 5.14.0-687.42.1.el9_8
- (no CPE)range: < 5.14.0-687.42.1.el9_8
- (no CPE)range: < 5.14.0-687.42.1.el9_8
- (no CPE)range: < 5.14.0-687.42.1.el9_8
- (no CPE)range: < 5.14.0-687.42.1.el9_8
- (no CPE)range: < 5.14.0-687.42.1.el9_8
- (no CPE)range: < 5.14.0-687.42.1.el9_8
- (no CPE)range: < 5.14.0-687.42.1.el9_8
- (no CPE)range: < 5.14.0-687.42.1.el9_8
- (no CPE)range: < 5.14.0-687.42.1.el9_8
- (no CPE)range: < 5.14.0-687.42.1.el9_8
- (no CPE)range: < 5.14.0-687.42.1.el9_8
- (no CPE)range: < 5.14.0-687.42.1.el9_8
- (no CPE)range: < 5.14.0-687.42.1.el9_8
- (no CPE)range: < 5.14.0-687.42.1.el9_8
- (no CPE)range: < 5.14.0-687.42.1.el9_8
- (no CPE)range: < 5.14.0-687.42.1.el9_8
- (no CPE)range: < 5.14.0-687.42.1.el9_8
- (no CPE)range: < 5.14.0-687.42.1.el9_8
- (no CPE)range: < 5.14.0-687.42.1.el9_8
- (no CPE)range: < 5.14.0-687.42.1.el9_8
- (no CPE)range: < 5.14.0-687.42.1.el9_8
- (no CPE)range: < 5.14.0-687.42.1.el9_8
- (no CPE)range: < 5.14.0-687.42.1.el9_8
- (no CPE)range: < 5.14.0-687.42.1.el9_8
- (no CPE)range: < 5.14.0-687.42.1.el9_8
- (no CPE)range: < 5.14.0-687.42.1.el9_8
- (no CPE)range: < 5.14.0-687.42.1.el9_8
- (no CPE)range: < 5.14.0-687.42.1.el9_8
- (no CPE)range: < 5.14.0-687.42.1.el9_8
- (no CPE)range: < 5.14.0-687.42.1.el9_8
- (no CPE)range: < 5.14.0-687.42.1.el9_8
- (no CPE)range: < 5.14.0-687.42.1.el9_8
- (no CPE)range: < 5.14.0-687.42.1.el9_8
- (no CPE)range: < 5.14.0-687.42.1.el9_8
- (no CPE)range: < 5.14.0-687.42.1.el9_8
- (no CPE)range: < 5.14.0-687.42.1.el9_8
- (no CPE)range: < 5.14.0-687.42.1.el9_8
- (no CPE)range: < 5.14.0-687.42.1.el9_8
- (no CPE)range: < 5.14.0-687.42.1.el9_8
- (no CPE)range: < 5.14.0-687.42.1.el9_8
- (no CPE)range: < 5.14.0-687.42.1.el9_8
- (no CPE)range: < 5.14.0-687.42.1.el9_8
- (no CPE)range: < 5.14.0-687.42.1.el9_8
- (no CPE)range: < 5.14.0-687.42.1.el9_8
- (no CPE)range: < 5.14.0-687.42.1.el9_8
- (no CPE)range: < 5.14.0-687.42.1.el9_8
- (no CPE)range: < 5.14.0-687.42.1.el9_8
- (no CPE)range: < 5.14.0-687.42.1.el9_8
- (no CPE)range: < 5.14.0-687.42.1.el9_8
- (no CPE)range: < 5.14.0-687.42.1.el9_8
- (no CPE)range: < 5.14.0-687.42.1.el9_8
- (no CPE)range: < 5.14.0-687.42.1.el9_8
- (no CPE)range: < 5.14.0-687.42.1.el9_8
- (no CPE)range: < 5.14.0-687.42.1.el9_8
- (no CPE)range: < 5.14.0-687.42.1.el9_8
- (no CPE)range: < 5.14.0-687.42.1.el9_8
- (no CPE)range: < 5.14.0-687.42.1.el9_8
- (no CPE)range: < 5.14.0-687.42.1.el9_8
- (no CPE)range: < 6.12.0-160000.37.1
- (no CPE)range: < 6.12.0-160000.37.1
- (no CPE)range: < 6.12.0-160000.37.1
- (no CPE)range: < 6.12.0-160000.37.1
- (no CPE)range: < 6.12.0-160000.37.1.160000.2.19
- (no CPE)range: < 6.12.0-160000.37.1
- (no CPE)range: < 6.12.0-160000.37.1
- (no CPE)range: < 6.12.0-160000.37.1
- (no CPE)range: < 6.12.0-160000.37.1
- (no CPE)range: < 6.12.0-160000.37.1
- (no CPE)range: < 6.12.0-160000.37.1
- (no CPE)range: < 6.12.0-160000.37.1
- (no CPE)range: < 6.12.0-160000.37.1
Patches
Vulnerability mechanics
References
9- git.kernel.org/stable/c/0afc802160af0df61ed374fdb97fb34cfe5cdf2fnvdPatch
- git.kernel.org/stable/c/4cdda7f868f48e2f81579371584fdbdce37df2c8nvdPatch
- git.kernel.org/stable/c/573810f61bcd6b6815e2ff53bbdd2b9c9d747176nvdPatch
- git.kernel.org/stable/c/66eba0ffce3b7e11449946b4cbbef8ea36112f56nvdPatch
- git.kernel.org/stable/c/7c34f91305292083253df6a9f6c8ede02d4ccaeanvdPatch
- git.kernel.org/stable/c/8a1d6e40dedfe1068aee094d851bd69e289c9fd6nvdPatch
- git.kernel.org/stable/c/9e5da2379f968a3ea5a6e38921ab6201576466dcnvdPatch
- git.kernel.org/stable/c/ddddd8271359961e403d11c90c9ba9fc38914f7envdPatch
- cert-portal.siemens.com/productcert/html/ssa-019113.htmlnvd
News mentions
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