New NatJack Attacks Hijack TCP Sessions and Spoof DNS by Manipulating NAT Tables

Security researcher Malcolm Stagg has disclosed a new attack class called NatJack that manipulates network address translation NAT connection state to hijack active TCP sessions, spoof DNS responses, expose mapped ports, and exhaust NAT tables. Presented at Black Hat USA 2026, the research found...

CVE-2026-27466: Exposure of Resource to Wrong Sphere

BigBlueButton is an open-source virtual classroom. In versions 3.0.21 and below, the official documentation for "Server Customization" on Support for ClamAV as presentation file scanner contains instructions that leave a BBB server vulnerable for Denial of Service. The flawed command exposes both...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: netfilter: iptables: Fix null-ptr-deref in iptablenattableinit. We had a report that iptables-restore sometimes triggered null-ptr-deref at boot time. 0 The problem is that iptablenattableinit is exposed to user space before the...

netfilter: iptables: Fix null-ptr-deref in iptable_nat_table_init().

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AZL-47814 CVE-2024-42270 affecting package kernel for versions less than 6.6.47.1-1

In the Linux kernel, the following vulnerability has been resolved: netfilter: iptables: Fix null-ptr-deref in iptablenattableinit. We had a report that iptables-restore sometimes triggered null-ptr-deref at boot time. 0 The problem is that iptablenattableinit is exposed to user space before the...

AZL-47829 CVE-2024-42269 affecting package kernel for versions less than 5.15.167.1-1

In the Linux kernel, the following vulnerability has been resolved: netfilter: iptables: Fix potential null-ptr-deref in ip6tablenattableinit. ip6tablenattableinit accesses net-gen-ptrip6tablenatnetops.id, but the function is exposed to user space before the entry is allocated via...

PT-2024-29821

Name of the Vulnerable Software and Affected Versions Linux kernel versions prior to 6.6.50 Description The issue is related to a potential null pointer dereference in the ip6table nat table init function. This function accesses net-gen-ptrip6table nat net ops.id, but it is exposed to user space...

PT-2024-29822

Name of the Vulnerable Software and Affected Versions Linux kernel versions prior to 6.6.50 Description The vulnerability is related to a null pointer dereference in the iptable nat table init function. This issue can be triggered when iptables-restore is called at boot time, causing a kernel NUL...

Automated Evil Twin Attack: infernal-twin

Evil twin is a term for a rogue Wi-Fi access point that appears to be a legitimate one offered on the premises, but actually has been set up to eavesdrop on wireless communications. An evil twin is the wireless version of the phishing scam. An attacker fools wireless users into connecting a lapto...