CVE-2026-8451

CVE

Threat entity extracted from intelligence sources

Frequency

occurrences

First Seen

June 30, 2026

Last Seen

September 27, 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

Critical Zero-Day Vulnerabilities in Citrix NetScaler Under Active Exploitation80.8

On September 26, 2026, security firm watchTowr reported two unpatched zero-day vulnerabilities in Citrix NetScaler ADC and Gateway appliances, allowing remote code execution (RCE) and actively exploited in the wild. Citrix has confirmed the existence of these vulnerabilities, tracked as CVE-2026-887...

Citrix NetScaler Vulnerabilities Enable DoS and Memory Disclosure Attacks74.0

Citrix disclosed six high-severity vulnerabilities in NetScaler ADC and Gateway appliances, including CVE-2026-8451, which allows unauthenticated memory disclosure when configured as a SAML identity provider. Other vulnerabilities can lead to denial-of-service (DoS) attacks, arbitrary file access, a...

Critical FatFs Vulnerabilities Enable Physical Access Attacks on Millions of Devices66.6

Security firm runZero has identified seven unpatched vulnerabilities in the FatFs filesystem driver, affecting millions of embedded devices. These vulnerabilities can be exploited through malicious media or firmware images, leading to memory corruption, denial of service, and potential code executio...