CVE-2026-53219

In the Linux kernel, the following vulnerability has been resolved: netfilter: xtables: avoid leaking percpu counter pointers The native and compat get-entries paths copy the fixed rule entry header from the kernelized rule blob to userspace before overwriting the entry's counter fields with a...

CVE-2026-53219

The CVE-2026-53219 issue affects the Linux kernel netfilter x_tables path. The root cause is that native/compat get-entries copied the fixed rule entry header to userspace before sanitizing and overwriting the counter fields, exposing the percpu allocation address (pcnt) in SMP environments. The ...

CVE-2026-53214

In the Linux kernel, the following vulnerability has been resolved: ipv6: Fix a potential NPD in cleanupprefixroute addrconfgetprefixroute can return the fib6nullentry sentinel entry which has a NULL fib6table pointer. Therefore, before setting the route's expiration time, check that we are not...

CVE-2026-53214 ipv6: Fix a potential NPD in cleanup_prefix_route()

In the Linux kernel, the following vulnerability has been resolved: ipv6: Fix a potential NPD in cleanupprefixroute addrconfgetprefixroute can return the fib6nullentry sentinel entry which has a NULL fib6table pointer. Therefore, before setting the route's expiration time, check that we are not...

SUSE CVE-2026-56116

dhcpcd through 10.3.2, fixed in commit 708b4a5, contains a memory leak vulnerability in the IPv6 Router Advertisement route information handling that allows an unauthenticated same-link attacker to cause denial of service by sending crafted Router Advertisements. Attackers can repeatedly send...

PT-2026-52488

Name of the Vulnerable Software and Affected Versions Zephyr affected versions not specified Description An issue in the IPv6 network stack allows a denial of service by sending a small number of maliciously fragmented IPv6 packets. When the fragment-header processing path handles these packets,...

PT-2026-52323

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description An issue exists in the SIT Simple Internet Tunneling implementation for IPv6. The ipip6 tunnel xmit function caches the inner IPv6 header pointer at the start of the function and continu...

Linux Distros Unpatched Vulnerability : CVE-2026-53012

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - nexthop: fix IPv6 route referencing IPv4 nexthop syzbot reported a panic 1 2. When an IPv6 nexthop is replaced with an IPv4 nexthop, the hasv4 flag of all group...

CVE-2026-52981

In the Linux kernel, the following vulnerability has been resolved: neigh: let neighxmit take skb ownership neighxmit always releases the skb, except when no neighbour table is found. But even the first added user of neighxmit mpls relied on neighxmit to release the skb or queue it for tx. sashik...

CVE-2026-52921 netfilter: ipset: stop hash:* range iteration at end

In the Linux kernel, the following vulnerability has been resolved: netfilter: ipset: stop hash: range iteration at end The following hash set variants: hash:ip,mark hash:ip,port hash:ip,port,ip hash:ip,port,net iterate IPv4 ranges with a 32-bit iterator. The iterator must stop once the last...

PT-2026-51968

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description An issue exists in the bpf prog test run skb function where the system may access ip hdrskb or ipv6 hdrskb even if the provided test input contains only an Ethernet header. This occurs...

PT-2026-51714

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description An issue exists in the netfilter ipset component where specific hash set variants—hash:ip,mark, hash:ip,port, hash:ip,port,ip, and hash:ip,port,net—iterate IPv4 ranges using a 32-bit...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: media: renesas: vsp1: Fix NULL pointer deref on module unload When unloading the module in Gen 4, we encountered a NULL pointer dereference. This issue arises due to the cleanup code calling vsp1drmcleanup, whereas it should call...

net/url: Incorrect parsing of IPv6 host literals in net/url

The Go standard library function net/url.Parse insufficiently validated the host/authority component and accepted some invalid URLs by effectively treating garbage before an IP-literal as ignorable. The function should have rejected this as invalid...

kernel: netfilter: flowtable: strictly check for maximum number of actions

A flaw was found in the Netfilter flowtable component of the Linux kernel. This vulnerability occurs because the system does not strictly check the maximum number of hardware offload actions for IPv6, allowing it to process more actions than supported. This could potentially lead to system...

CVE-2026-10637 Use-after-free of `net_pkt` in IPv6 MLD send path triggerable by a link-local MLD Query

subsys/net/ip/ipv6mld.c:mldsend read the packet interface via netpktifacepkt after netsenddatapkt returned successfully. Per the network stack's ownership contract include/zephyr/net/netcore.h, and the explicit warning in subsys/net/ip/netcore.c:453-460 'do not use pkt after that call', a...

kernel: ip6_tunnel: clear skb2->cb[] in ip4ip6_err()

A flaw was found in the Linux kernel's IPv6 tunnel implementation. A remote attacker could exploit this flaw by sending malicious ICMPv6 error messages to cause a stack-based buffer overflow in the kernel's IPv4-over-IPv6 tunnel error handling code. This could result in a kernel crash denial of...

SUSE CVE-2026-50127

Weblate is a web based localization tool. From version 5.15 to before version 2026.6, Weblate's VCSRESTRICTPRIVATE did not properly account for some transitional IPv6 ranges, multicast addresses, or some semi-private IPv4 ranges, which allowed some addresses to bypass private range restrictions...

CVE-2026-50131 Fedify has an incomplete SSRF mitigation after GHSA-p9cg-vqcc-grcx: validatePublicUrl allows special-use IPv4 ranges

Fedify is a TypeScript library for building federated server apps powered by ActivityPub. Fedify previously addressed SSRF/internal network access in GHSA-p9cg-vqcc-grcx by adding public URL validation before runtime document and media fetching. However, the IPv4 validation logic present starting...

CVE-2026-50127

Weblate is a web based localization tool. From version 5.15 to before version 2026.6, Weblate's VCSRESTRICTPRIVATE did not properly account for some transitional IPv6 ranges, multicast addresses, or some semi-private IPv4 ranges, which allowed some addresses to bypass private range restrictions...