CVE-2021-34535

CVE

Threat entity extracted from intelligence sources

Frequency

occurrences

First Seen

August 6, 2026

Last Seen

August 6, 2026

API

Exploited in Wild

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Ransomware Use

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Public Exploits

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Attack Vector

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Vulnerability Overview

Exploitation Activity

Exploitation Intelligence

NatJack Attack Class Exposes Vulnerabilities in NAT Implementations69.0

At Black Hat USA 2026, researcher Malcolm Stagg disclosed NatJack, a new attack class exploiting design flaws in Network Address Translation (NAT) systems. All 32 tested NAT products across Windows, Linux, and macOS were found vulnerable to techniques including TCP connection hijacking and DNS respo...