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High WID-SEC-2026-2674 11 CVEs

Cisco IOS XE: Mehrere Schwachstellen

Published Aug 5, 2026 · Updated Aug 5, 2026 · de-DE

Vendor: Cisco Product: IOS XE

Summary

Ein Angreifer kann mehrere Schwachstellen in Cisco IOS XE ausnutzen, um beliebigen Code auszuführen, Sicherheitsmaßnahmen zu umgehen, vertrauliche Informationen offenzulegen, Daten zu manipulieren oder einen Denial-of-Service-Zustand herbeizuführen.

Product

Cisco Internetwork Operating System (IOS) ist ein Betriebssystem, das für Cisco Geräte wie z. B. Router und Switches eingesetzt wird.

Vulnerabilities 11

  • Critical 9.8
    CVE-2026-20272

    Cisco IOS XE Software Security Hardening Release

    As part of Cisco's ongoing commitment to proactive security and product quality, the Cisco IOS XE Software engineering team has conducted a comprehensive internal security review. This review resulted in software hardening releases that address multiple inter…

    Cisco Cisco IOS XE Software iOS Network devices
  • Critical 9.0
    CVE-2026-20267

    Cisco IOS XE Software Security Hardening Release

    As part of Cisco's ongoing commitment to proactive security and product quality, the Cisco IOS XE Software engineering team has conducted a comprehensive internal security review. This review resulted in software hardening releases that address multiple inter…

    Cisco Cisco IOS XE Software iOS Network devices
  • High 8.6
    CVE-2026-20263

    Cisco IOS XE Software Blocks Extensible Exchange Protocol Denial of Service Vulnerability

    A vulnerability in the Blocks Extensible Exchange Protocol (BEEP) feature of Cisco IOS XE Software could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device. This vulnerability is due to improper handli…

    Cisco Cisco IOS XE Software iOS Network devices
  • High 8.6
    CVE-2026-20268

    Cisco IOS XE Software Security Hardening Release

    As part of Cisco's ongoing commitment to proactive security and product quality, the Cisco IOS XE Software engineering team has conducted a comprehensive internal security review. This review resulted in software hardening releases that address multiple inter…

    Cisco Cisco IOS XE Software iOS Network devices
  • High 8.6
    CVE-2026-20269

    Cisco IOS XE Software Security Hardening Release

    As part of Cisco's ongoing commitment to proactive security and product quality, the Cisco IOS XE Software engineering team has conducted a comprehensive internal security review. This review resulted in software hardening releases that address multiple inter…

    Cisco Cisco IOS XE Software iOS Network devices
  • High 8.6
    CVE-2026-20270

    Cisco IOS XE Software Security Hardening Release

    As part of Cisco's ongoing commitment to proactive security and product quality, the Cisco IOS XE Software engineering team has conducted a comprehensive internal security review. This review resulted in software hardening releases that address multiple inter…

    Cisco Cisco IOS XE Software iOS Network devices
  • High 8.6
    CVE-2026-20271

    Cisco IOS XE Software Security Hardening Release

    As part of Cisco's ongoing commitment to proactive security and product quality, the Cisco IOS XE Software engineering team has conducted a comprehensive internal security review. This review resulted in software hardening releases that address multiple inter…

    Cisco Cisco IOS XE Software iOS Network devices
  • High 8.6
    CVE-2026-20273

    Cisco IOS XE Software Security Hardening Release

    As part of Cisco's ongoing commitment to proactive security and product quality, the Cisco IOS XE Software engineering team has conducted a comprehensive internal security review. This review resulted in a software hardening release that addresses multiple in…

    Cisco Cisco IOS XE Software iOS Network devices
  • High 7.7
    CVE-2026-20124

    Cisco IOS XE Software SNMP Denial of Service Vulnerability

    A vulnerability in the Simple Network Management Protocol (SNMP) subsystem of Cisco IOS XE Software could allow an authenticated, remote attacker to cause an affected device to reload, resulting in a denial of service (DoS) condition. This vulnerability is du…

    Cisco Cisco IOS XE Software iOS Network devices
  • Medium 6.3
    CVE-2026-20311

    Cisco IOS XE Software Web UI Denial of Service Vulnerability

    A vulnerability in the web-based management interface of Cisco IOS XE Software could allow an authenticated, remote attacker with low privileges to cause a denial of service (DoS) condition on an affected device. This vulnerability is due to insufficient erro…

    Cisco Cisco IOS XE Software iOS Network devices
  • Medium 4.3
    CVE-2026-20308

    Cisco IOS XE Software Web-Based Management Interface Vulnerability

    A vulnerability in the web-based management interface of Cisco IOS XE Software could allow an authenticated, remote attacker with low privileges to perform a denial of service (DoS) attack against an affected device. This vulnerability is due to insufficient …

    Cisco Cisco IOS XE Software iOS Network devices

Revision history

  1. #1

    Initiale Fassung

References