CVE-2026-102077

An Improper Check for Unusual or Exceptional Conditions vulnerability in the Packet Forwarding Engine PFE of Juniper Networks Junos OS on MX Series with SPC3 allows an unauthenticated, network-based attacker to cause a Denial-of-Service DoS. On MX Series with SPC3 line-card and source NAT...

CVE-2026-102077

A vulnerability exists in the Packet Forwarding Engine (PFE) of Juniper Networks Junos OS on MX Series with SPC3 line-cards. Due to an improper check for unusual conditions, an unauthenticated network-based attacker can send specific malformed IPv6 packets in a source NAT scenario. Instead of bei...

EUVD-2026-101410

An Improper Check for Unusual or Exceptional Conditions vulnerability in the Packet Forwarding Engine PFE of Juniper Networks Junos OS on MX Series with SPC3 allows an unauthenticated, network-based attacker to cause a Denial-of-Service DoS. On MX Series with SPC3 line-card and source NAT...

CVE-2026-102077 Junos OS: MX Series with SPC3: In a source NAT scenario malformed packets will lead to resource leaks and eventually traffic stops

An Improper Check for Unusual or Exceptional Conditions vulnerability in the Packet Forwarding Engine PFE of Juniper Networks Junos OS on MX Series with SPC3 allows an unauthenticated, network-based attacker to cause a Denial-of-Service DoS. On MX Series with SPC3 line-card and source NAT...

CVE-2026-102077 Junos OS: MX Series with SPC3: In a source NAT scenario malformed packets will lead to resource leaks and eventually traffic stops

An Improper Check for Unusual or Exceptional Conditions vulnerability in the Packet Forwarding Engine PFE of Juniper Networks Junos OS on MX Series with SPC3 allows an unauthenticated, network-based attacker to cause a Denial-of-Service DoS. On MX Series with SPC3 line-card and source NAT...

PT-2026-113913

An Improper Check for Unusual or Exceptional Conditions vulnerability in the Packet Forwarding Engine PFE of Juniper Networks Junos OS on MX Series with SPC3 allows an unauthenticated, network-based attacker to cause a Denial-of-Service DoS. On MX Series with SPC3 line-card and source NAT...

CVE-2026-102077: Improper Check for Unusual or Exceptional Conditions

An Improper Check for Unusual or Exceptional Conditions vulnerability in the Packet Forwarding Engine PFE of Juniper Networks Junos OS on MX Series with SPC3 allows an unauthenticated, network-based attacker to cause a Denial-of-Service DoS. On MX Series with SPC3 line-card and source NAT...

CVE-2026-53266 netfilter: bridge: make ebt_snat ARP rewrite writable

In the Linux kernel, the following vulnerability has been resolved: netfilter: bridge: make ebtsnat ARP rewrite writable The ebtables SNAT target keeps the Ethernet source address rewrite behind skbensurewritableskb, 0. This is intentional: at the bridge ebtables hooks the Ethernet header is...

PT-2026-52361

Name of the Vulnerable Software and Affected Versions Linux Kernel affected versions not specified Description An out-of-bounds write issue exists in the ebt snat tg function within the net/bridge/netfilter/ebt snat.c module. The ebtables SNAT target, when configured to rewrite the hardware addre...

CVE-2026-43329

In the Linux kernel, the following vulnerability has been resolved: netfilter: flowtable: strictly check for maximum number of actions The maximum number of flowtable hardware offload actions in IPv6 is: ethernet mangling 4 payload actions, 2 for each ethernet address SNAT 4 payload actions DNAT ...

CVE-2026-43329 netfilter: flowtable: strictly check for maximum number of actions

In the Linux kernel, the following vulnerability has been resolved: netfilter: flowtable: strictly check for maximum number of actions The maximum number of flowtable hardware offload actions in IPv6 is: ethernet mangling 4 payload actions, 2 for each ethernet address SNAT 4 payload actions DNAT ...

PT-2025-46740

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description The Linux kernel contains a flaw related to a metadata destination metadata dst leak within the bpf redirect neigh v4,6 function. This issue occurs in systems utilizing the Cilium BPF...

Linux Kernel Security Vulnerabilities

Linux kernel is the kernel used by Linux, the open source operating system of the Linux Foundation in the United States. A security vulnerability exists in Linux kernel that stems from a missing IPv6 SNAT raw tuple lookup...

Configuring Source NAT for Direct Internet Breakout on Branch SDWAN

After setting up Direct Internet Breakout DIA on a Branch Site, it can be seen that packets forwarded to the internet will retain the private IP address as the Source IP. This will result in packets not returning form public IP destinations. To resolve this, you can configure Source NAT on the...