CVE-2026-74625

A flaw was found in the Linux kernel's netfilter bridge component. This vulnerability allows for a memory leak when the system processes non-IPv4 and non-IPv6 network traffic through a bridge nftables connection tracking rule. The system fails to release an existing connection tracking template...

ANT-2026-KRKYEBGE · nftables · write-primitive

other high Severity Claude high · Security research firm high · Maintainer - Discovered by Claude Opus 4.6 REPORT Anthropic's analysis, sealed at approval. Disclosure to the maintainer was performed by Trail of Bits. ANT-2026-KRKYEBGE: write-primitive in nftables In jsonparsemapstmt, the parser...

Unity Linux 20.1050e Security Update: kernel (UTSA-2026-100182)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-100182 advisory. In the Linux kernel, the following vulnerability has been resolved: ipv6: validate extension header length before copying to cmsg ip6datagramrecvspecificctl builds...

Unity Linux 20.1050a Security Update: kernel (UTSA-2026-100587)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-100587 advisory. In the Linux kernel, the following vulnerability has been resolved: ipv6: validate extension header length before copying to cmsg ip6datagramrecvspecificctl builds...

Linux Distros Unpatched Vulnerability : CVE-2026-74579

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - netfilter: nftpayload: fix mask build for partial field offload nftpayloadoffloadmask builds the offload match mask for a payload expression that covers only pa...

SUSE CVE-2026-74565

In the Linux kernel, the following vulnerability has been resolved: netfilter: nftables: make nftobject rhltable per table The nftobject rhltable is global, this allows for accessing objects that are being dismangled from lookup path by other existing netns. Given the nftobjdestroy releases the...

CVE-2026-72248 netfilter: flowtable: support IPIP tunnel with direct xmit

In the Linux kernel, the following vulnerability has been resolved: netfilter: flowtable: support IPIP tunnel with direct xmit The combination of IPIP tunnel with direct xmit, eg. bridge device, breaks because no dstentry is provided to check the skb headroom and to set the iph-fragoff field. Thi...

PT-2026-73017

In the Linux kernel, the following vulnerability has been resolved: netfilter: nf tables: make nft object rhltable per table The nft object rhltable is global, this allows for accessing objects that are being dismangled from lookup path by other existing netns. Given the nft obj destroy releases...

Linux Distros Unpatched Vulnerability : CVE-2026-72320

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - netfilter: nftlookup: fix catchall element handling with inverted lookups nftlookupeval decides whether a lookup matched found from the direct set lookup and...

openSUSE 16: cluster-md-kmp-64kb / cluster-md-kmp-azure / cluster-md-kmp-default / etc (openSUSE-SU-2026:21555-1)

The remote openSUSE 16 host has packages installed that are affected by multiple vulnerabilities as referenced in the openSUSE-SU-2026:21555-1 advisory. The SUSE Linux Enterprise 16.0 kernel was updated to fix various security issues: The following security issues were fixed: - CVE-2026-23259:...

OPENSUSE-SU-2026:21555-1 Security update for the Linux Kernel

The SUSE Linux Enterprise 16.0 kernel was updated to fix various security issues: The following security issues were fixed: - CVE-2026-23259: iouring/rw: free potentially allocated iovec on cache put failure bsc1259866. - CVE-2026-31443: dmaengine: idxd: Fix crash when the event log is disabled...

CVE-2026-63920

A flaw was found in the Linux kernel's IPv6 networking stack. An unprivileged local user could exploit a vulnerability in how IPv6 extension header lengths are handled. By manipulating these headers using nftables, an attacker can trigger an out-of-bounds read, leading to information disclosure...

CVE-2026-63920

In the Linux kernel, the following vulnerability has been resolved: ipv6: validate extension header length before copying to cmsg ip6datagramrecvspecificctl builds IPV6HOPOPTS,DSTOPTS,RTHDR cmsgs and their IPV62292 legacy counterparts by trusting the on-wire hdrlen byte ptr1 when computing the...

CVE-2026-63920

In the Linux kernel, the following vulnerability has been resolved: ipv6: validate extension header length before copying to cmsg ip6datagramrecvspecificctl builds IPV6HOPOPTS,DSTOPTS,RTHDR cmsgs and their IPV62292 legacy counterparts by trusting the on-wire hdrlen byte ptr1 when computing the...

CVE-2026-63920

The CVE-2026-63920 entry describes a Linux kernel vulnerability in IPv6 extension header handling. The issue arises when ip6_datagram_recv_specific_ctl() builds IPV6_…cmsgs by trusting on-wire hdrlen (ptr[1]) during put_cmsg() length calculation. Although the write to hdrlen is in-bounds, reading...

EUVD-2026-45693

In the Linux kernel, the following vulnerability has been resolved: ipv6: validate extension header length before copying to cmsg ip6datagramrecvspecificctl builds IPV6HOPOPTS,DSTOPTS,RTHDR cmsgs and their IPV62292 legacy counterparts by trusting the on-wire hdrlen byte ptr1 when computing the...

PT-2026-61175

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description A flaw exists in the netfilter nf tables component where the process of moving hooks from the basechain or flowtable hook list to the transaction hook list during device deletions disrup...

CVE-2026-53269

A flaw was found in the Linux kernel's netfilter synproxy component. This vulnerability is caused by a race condition during the on-demand registration of netfilter hooks. A local user with privileges to modify netfilter rules could exploit this flaw by concurrently adding iptables targets or...

Linux kernel nft_inner: IPv6 inner_thoff desynchronization causes firewall bypass

Linux kernel nftinner: IPv6 innerthoff desynchronization causes firewall bypass Vulnerability Overview In the Linux kernel netfilter nftables inner expression, when parsing an inner IPv6 packet, ipv6findhdr first correctly computes the transport-layer offset including extension headers, but the...

Siemens RUGGEDCOM RST2428P Improper Input Validation (CVE-2026-23111)

In the Linux kernel, the following vulnerability has been resolved: netfilter: nftables: fix inverted genmask check in nftmapcatchallactivate nftmapcatchallactivate has an inverted element activity check compared to its non-catchall counterpart nftmapelemactivate and compared to what is logically...