Linux Distros Unpatched Vulnerability : CVE-2026-53259

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - ipv6: anycast: insert aca into global hash under idev-lock syzbot reported a splat 1: a slab-use-after- free in ipv6chkacastaddr, which walks the global...

CVE-2026-53259

A flaw was found in the Linux kernel, specifically within its management of IPv6 anycast addresses. A timing issue, known as a race condition, can occur when these addresses are added and removed from a system's internal list. This can lead to the system attempting to access memory that has alrea...

CVE-2026-53259

In the Linux kernel, the following vulnerability has been resolved: ipv6: anycast: insert aca into global hash under idev-lock syzbot reported a splat 1: a slab-use-after-free in ipv6chkacastaddr, which walks the global inet6acaddrlst hash under RCU and dereferences a struct ifacaddr6 that has...

UBUNTU-CVE-2026-53259

In the Linux kernel, the following vulnerability has been resolved: ipv6: anycast: insert aca into global hash under idev-lock syzbot reported a splat 1: a slab-use-after-free in ipv6chkacastaddr, which walks the global inet6acaddrlst hash under RCU and dereferences a struct ifacaddr6 that has...

CVE-2026-53259

In the Linux kernel, the following vulnerability has been resolved: ipv6: anycast: insert aca into global hash under idev-lock syzbot reported a splat 1: a slab-use-after-free in ipv6chkacastaddr, which walks the global inet6acaddrlst hash under RCU and dereferences a struct ifacaddr6 that has...

EUVD-2026-39210

In the Linux kernel, the following vulnerability has been resolved: ipv6: anycast: insert aca into global hash under idev-lock syzbot reported a splat 1: a slab-use-after-free in ipv6chkacastaddr, which walks the global inet6acaddrlst hash under RCU and dereferences a struct ifacaddr6 that has...

CVE-2026-53259 ipv6: anycast: insert aca into global hash under idev->lock

In the Linux kernel, the following vulnerability has been resolved: ipv6: anycast: insert aca into global hash under idev-lock syzbot reported a splat 1: a slab-use-after-free in ipv6chkacastaddr, which walks the global inet6acaddrlst hash under RCU and dereferences a struct ifacaddr6 that has...

CVE-2026-53259

CVE-2026-53259 (Linux kernel) fixes a race in IPv6 anycast address management. The root cause was a window where inserting an aca into the global inet6_acaddr_lst[] and its hash could be separated from the teardown path (RTNL), causing the ac_addr to be freed while still linked, i.e., a slab-use-...

CVE-2026-53259

In the Linux kernel, the following vulnerability has been resolved: ipv6: anycast: insert aca into global hash under idev-lock syzbot reported a splat 1: a slab-use-after-free in ipv6chkacastaddr, which walks the global inet6acaddrlst hash under RCU and dereferences a struct ifacaddr6 that has...

PT-2026-52354

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description A slab-use-after-free issue exists in the ipv6 chk acast addr function. The problem occurs when an anycast address aca is allocated and added to the idev-ac list under idev-lock, but is...

Forward to Hell? on the Potentials of Misusing Transparent DNS Forwarders in Reflective Amplification Attacks

The DNS infrastructure is infamous for facilitating reflective amplification attacks. Various countermeasures such as server shielding, access control, rate limiting, and protocol restrictions have been implemented. Still, the threat remains throughout the deployment of DNS servers. In this paper...

Cisco NX-OS Software Anycast Gateway Invalid ARP (CVE-2020-3174)

A vulnerability in the anycast gateway feature of Cisco NX-OS Software could allow an unauthenticated, adjacent attacker to cause a device to learn invalid Address Resolution Protocol ARP entries. The ARP entries are for nonlocal IP addresses for the subnet. The vulnerability is due to improper...

Edge DNS Secondary Implementation: Order of Operations for NS Zone and Registrar Records

This article has been updated to include recent industry trends and information about primary implementations. Akamai Edge DNS service delivers edge-based, authoritative domain services for thousands of organizations. These organizations trust Edge DNS to deliver reliable and performant responses...

Finding the Best Servers to Answer Queries -- Edge DNS and Anycast

TL;DR IP Anycast is a network addressing and routing methodology that allows IP addresses to be announced from multiple points on the internet With the proper implementation, Anycast can reduce DNS RTTs and offer innate DDoS protection Akamai's authoritative name service, Edge DNS, combines globa...

Finding the Best Servers to Answer Queries — Edge DNS and Anycast

While Unicast defines a single destination endpoint for a given IP, Anycast is an addressing technique in which the same IP is advertised from multiple servers simultaneously...

A vulnerability in the anycast function of the Cisco NX-OS operating system, which allows a attacker to compromise the integrity of protected information.

The vulnerability in the anycast function of the Cisco NX-OS operating system is related to insufficient verification of data authenticity. Exploiting this vulnerability can allow a malicious actor to compromise the integrity of protected information...

Cisco NX-OS Software Anycast Gateway Invalid ARP Vulnerability (cisco-sa-20200226-nxos-arp)

According to its self-reported version, Cisco NX-OS Software is affected by a vulnerability. Please see the included Cisco BIDs and Cisco Security Advisory for more information. TRUSTED...

CVE-2020-3174

A vulnerability in the anycast gateway feature of Cisco NX-OS Software could allow an unauthenticated, adjacent attacker to cause a device to learn invalid Address Resolution Protocol ARP entries. The ARP entries are for nonlocal IP addresses for the subnet. The vulnerability is due to improper...

Input validation

A vulnerability in the anycast gateway feature of Cisco NX-OS Software could allow an unauthenticated, adjacent attacker to cause a device to learn invalid Address Resolution Protocol ARP entries. The ARP entries are for nonlocal IP addresses for the subnet. The vulnerability is due to improper...

CVE-2020-3174 Cisco NX-OS Software Anycast Gateway Invalid ARP Vulnerability

A vulnerability in the anycast gateway feature of Cisco NX-OS Software could allow an unauthenticated, adjacent attacker to cause a device to learn invalid Address Resolution Protocol ARP entries. The ARP entries are for nonlocal IP addresses for the subnet. The vulnerability is due to improper...