CVE-2026-20283

CVE

Threat entity extracted from intelligence sources

Frequency

occurrences

First Seen

September 16, 2026

Last Seen

September 17, 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 Vulnerability in Cisco ISE Under Active Exploitation89.0

Cisco has disclosed a critical vulnerability (CVE-2026-76460) in its Identity Services Engine (ISE) that allows unauthenticated remote attackers to bypass authentication via a flaw in an API endpoint. This vulnerability has a CVSS score of 10.0 and is actively being exploited in the wild, prompting...

Critical Cisco FMC Vulnerabilities Under Active Exploitation88.3

Cisco's Secure Firewall Management Center (FMC) Software has two critical vulnerabilities, CVE-2026-20079 and CVE-2026-20316, that are currently being exploited by state-sponsored and ransomware actors. CVE-2026-20079, rated 10.0 on the CVSS scale, allows unauthenticated remote attackers to bypass a...