Cisco IOS — Cyber Threats, Attacks & Incidents

Threat entity extracted from intelligence sources

Frequency
13
occurrences
First Seen
November 7, 2025
Last Seen
July 17, 2026

Cisco IOS is a technology platform tracked across 7 threat clusters and 13 intelligence report mentions on ThreatCluster. First observed November 7, 2025; most recent activity July 17, 2026.

Overview

Cisco IOS is Cisco's family of network operating systems that run on the company's routers and switches, delivering core routing, switching, and security features across enterprise networks. Its ubiquity makes it a high-value attack surface in cybersecurity, with recent findings highlighting ransomware intrusion via stolen VPN credentials and DoS risk stemming from exploited firewall flaws, underscoring the importance of timely patching and access control.

Related Threat Clusters

Recent Intelligence Reports

  • CVE-2008-4128 — nvd.nist.gov · July 17, 2026
  • Cisco Talos, which tracks the same group under the alias Static Tundra — blog.talosintelligence.com · July 14, 2026
  • Mandiant documented in its original SYNful Knock research — cloud.google.com · July 14, 2026
  • CISA Warns of Decades — Cybersecuritynews · July 14, 2026
  • Old Cisco vulnerability under attack: Protection guide — Heise.De · July 14, 2026
  • FSB Center 16 Exploited Default Router Passwords to Map Critical Infrastructure for Years — Techtimes · July 13, 2026
  • US authorities warn that state — Cybersecuritydive · July 13, 2026
  • US and allies warn of Russian critical infrastructure attacks — Bleepingcomputer · July 13, 2026

CVSS v3.1 Breakdown