7.8
CWE
Advisory Published
Updated

CVE-2011-2549

First published: Thu Jul 28 2011(Updated: )

Unspecified vulnerability in Cisco IOS XR 4.1.x before 4.1.1 on Cisco Aggregation Services Routers (ASR) 9000 series devices allows remote attackers to cause a denial of service (line-card reload) via an IPv4 packet, aka Bug ID CSCtr26695.

Credit: ykramarz@cisco.com

Affected SoftwareAffected VersionHow to fix
Cisco IOS XRv 9000=4.1.0
Cisco ASR 900 Series Aggregation Services Router
Cisco ASR 900 Series Aggregation Services Router

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Frequently Asked Questions

  • What is the severity of CVE-2011-2549?

    CVE-2011-2549 has a severity level that can lead to denial of service on affected devices.

  • How do I fix CVE-2011-2549?

    To fix CVE-2011-2549, upgrade Cisco IOS XR to version 4.1.1 or later.

  • Which devices are affected by CVE-2011-2549?

    CVE-2011-2549 affects Cisco Aggregation Services Routers (ASR) 9000 series devices running IOS XR version 4.1.0.

  • Can CVE-2011-2549 be exploited remotely?

    Yes, CVE-2011-2549 can be exploited remotely by sending specially crafted IPv4 packets.

  • What are the potential impacts of CVE-2011-2549?

    The potential impact of CVE-2011-2549 includes a line-card reload, which results in denial of service for the affected device.

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