CVE-2026-63520

CVE

Threat entity extracted from intelligence sources

Frequency

occurrences

First Seen

September 4, 2026

Last Seen

September 26, 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 Exploits Target Citrix and Other Major Platforms80.0

Recent reports indicate multiple critical vulnerabilities are being actively exploited, including zero-day exploits for Citrix NetScaler ADC and Gateway (CVE-2026-88771, CVE-2026-88772) and PaperCut NG/MF. The vulnerabilities allow unauthenticated remote code execution, posing significant risks to a...

Microsoft September 2026 Patch Tuesday: Record 974 Vulnerabilities Addressed72.9

On September 8, 2026, Microsoft released a record-breaking 974 patches for vulnerabilities across its products, including two actively exploited zero-day vulnerabilities: CVE-2026-81963 and CVE-2026-85880. These vulnerabilities allow local attackers to escalate privileges to SYSTEM level, posing sig...