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Critical Vulnerabilities in Telnet and Cisco Firewalls Under Active Exploitation

Critical Vulnerabilities in Telnet and Cisco Firewalls Under Active Exploitation

First seen 27 Jan 2026, 19:53 UTC • •

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ThreatCluster AI
ThreatCluster •March 12, 2026 at 13:27 UTC

On January 19, 2026, a critical vulnerability in telnetd, CVE-2026-24061, was reported, allowing root access via Telnet. Additionally, two vulnerabilities in Cisco Secure Firewalls, CVE-2025-20333 and CVE-2025-20362, were identified, causing device reloads and denial of service. Healthcare providers and Cisco users are advised to take immediate action to mitigate these threats.

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