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kernel: netfilter: ip6t_eui64: reject invalid MAC header for all packets

🗓️ 28 May 2026 08:47:08Reported by RedHatType 
redhat
 redhat🔗 access.redhat.com👁 13 Views

Linux kernel netfilter flaw bypasses MAC header check for IPv6 packets, enabling remote denial of service.

Related
Packages
Refs
ReporterTitlePublishedViews
Family
ATTACKERKB		CVE-2026-31685
25 Apr 202608:47
–attackerkb
Tenable Nessus		Amazon Linux 2023 : bpftool6.18, kernel6.18, kernel6.18-devel (ALAS2023-2026-1693)
9 May 202600:00
–nessus
Tenable Nessus		Amazon Linux 2023 : bpftool6.12, kernel6.12, kernel6.12-devel (ALAS2023-2026-1695)
9 May 202600:00
–nessus
Tenable Nessus		Amazon Linux 2023 : bpftool, kernel, kernel-devel (ALAS2023-2026-1882)
22 Jun 202600:00
–nessus
Tenable Nessus		Amazon Linux 2 : kernel, --advisory ALAS2KERNEL-5.10-2026-123 (ALASKERNEL-5.10-2026-123)
22 Jun 202600:00
–nessus
Tenable Nessus		Amazon Linux 2 : kernel, --advisory ALAS2KERNEL-5.15-2026-107 (ALASKERNEL-5.15-2026-107)
22 Jun 202600:00
–nessus
Tenable Nessus		AlmaLinux 9 : kernel (ALSA-2026:21556)
7 Jun 202600:00
–nessus
Tenable Nessus		AlmaLinux 8 : kernel (ALSA-2026:21706)
28 May 202600:00
–nessus
Tenable Nessus		AlmaLinux 8 : kernel-rt (ALSA-2026:21745)
29 May 202600:00
–nessus
Tenable Nessus		Debian dla-4664 : ata-modules-5.10.0-43-armmp-di - security update
3 Jul 202600:00
–nessus
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OSOS VersionArchitecturePackagePackage VersionFilename
Red Hat Enterprise Linux8.10aarch64bpftool4.18.0-553.126.1.el8_10bpftool-4.18.0-553.126.1.el8_10.aarch64.rpm
Red Hat Enterprise Linux8.10ppc64lebpftool4.18.0-553.126.1.el8_10bpftool-4.18.0-553.126.1.el8_10.ppc64le.rpm
Red Hat Enterprise Linux8.10s390xbpftool4.18.0-553.126.1.el8_10bpftool-4.18.0-553.126.1.el8_10.s390x.rpm
Red Hat Enterprise Linux8.10x86_64bpftool4.18.0-553.126.1.el8_10bpftool-4.18.0-553.126.1.el8_10.x86_64.rpm
Red Hat Enterprise Linux8.10aarch64bpftool-debuginfo4.18.0-553.126.1.el8_10bpftool-debuginfo-4.18.0-553.126.1.el8_10.aarch64.rpm
Red Hat Enterprise Linux8.10ppc64lebpftool-debuginfo4.18.0-553.126.1.el8_10bpftool-debuginfo-4.18.0-553.126.1.el8_10.ppc64le.rpm
Red Hat Enterprise Linux8.10s390xbpftool-debuginfo4.18.0-553.126.1.el8_10bpftool-debuginfo-4.18.0-553.126.1.el8_10.s390x.rpm
Red Hat Enterprise Linux8.10x86_64bpftool-debuginfo4.18.0-553.126.1.el8_10bpftool-debuginfo-4.18.0-553.126.1.el8_10.x86_64.rpm
Red Hat Enterprise Linux8.10aarch64kernel4.18.0-553.126.1.el8_10kernel-4.18.0-553.126.1.el8_10.aarch64.rpm
Red Hat Enterprise Linux8.10ppc64lekernel4.18.0-553.126.1.el8_10kernel-4.18.0-553.126.1.el8_10.ppc64le.rpm
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22 Jul 2026 06:56Current
5.8Medium risk
Vulners AI Score5.8
CVSS 3.19.4
EPSS0.00337
CWE-1287
linux kernelnetfiltereui64invalid mac headerzero fragment offsetremote attackerdenial of service
13