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CVE-2026-63913Suited to automated attack · CISA

netfilter: conntrack: tcp: do not force CLOSE on invalid-seq RST without direction check

CVSS score

8.2

EPSS probability

%1.0

Risk score

0.1

Published

3 mo ago

Related Security News

Articles and analysis bulletins in which the press and security publications have covered this vulnerability:

The Hacker News10.08.2026

⚡ Weekly Recap: AI Goes Rogue, Metabase 0-Day, MCP Supply-Chain Attacks, and Router Backdoors

A lot of security problems still begin with someone doing a completely normal thing. Cloning a repo. Answering a call. Leaving a box exposed. Trusting the default. That pretty much covers the mood this week. Old bugs are back, supply chains are getting stranger, and some exploit paths are so short you wonder what was supposed to stop them in the first place. That’s only part of it. Here’s

The Hacker News07.08.2026

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 affected behavior across independently developed implementations, including Windows and

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