What’s Vulnerable › Vulnerabilities

CVE-2014-3321

• Severity: medium (CVSS 5.7 v2.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.6% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2014-07-18 · updated 2026-06-17
• Weakness: CWE-20

Description

Cisco IOS XR 4.3.4 and earlier on ASR 9000 devices, when bridge-group virtual interface (BVI) routing is enabled, allows remote attackers to cause a denial of service (chip and card hangs) via a series of crafted MPLS packets, aka Bug ID CSCuo91149.

Affected products

• Cisco Asr 9000 Rsp440 Router: all versions
• Cisco Asr 9001: all versions
• Cisco Asr 9006: all versions
• Cisco Asr 9010: all versions
• Cisco Asr 9904: all versions
• Cisco Asr 9912: all versions
• Cisco Asr 9922: all versions
• Cisco IOS XR Software: through 4.3.4; 4.3.0, 4.3.1, 4.3.2

References

• http://tools.cisco.com/security/center/content/CiscoSecurityNotice/CVE-2014-3321
• http://tools.cisco.com/security/center/viewAlert.x?alertId=34936
• http://www.securitytracker.com/id/1030597
• http://tools.cisco.com/security/center/content/CiscoSecurityNotice/CVE-2014-3321
• http://tools.cisco.com/security/center/viewAlert.x?alertId=34936
• http://www.securitytracker.com/id/1030597

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