What’s Vulnerable › Vulnerabilities

CVE-2013-1166

• Severity: high (CVSS 7.8 v2.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.9% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2013-04-11 · updated 2026-06-16
• Weakness: CWE-20

Description

Cisco IOS XE 3.2 through 3.4 before 3.4.5S, and 3.5 through 3.7 before 3.7.1S, on 1000 series Aggregation Services Routers (ASR), when VRF-aware NAT and SIP ALG are enabled, allows remote attackers to cause a denial of service (card reload) by sending many SIP packets, aka Bug ID CSCuc65609.

Affected products

• Cisco Asr 1001: all versions
• Cisco Asr 1002: all versions
• Cisco Asr 1002-X: all versions
• Cisco Asr 1002 Fixed Router: all versions
• Cisco Asr 1004: all versions
• Cisco Asr 1006: all versions
• Cisco Asr 1023 Router: all versions
• Cisco IOS XE: 3.2.0s, 3.2.1s, 3.2.2s, 3.3.0s, 3.3.1s, 3.3.2s (+7)

References

• http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20130410-asr1000
• http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20130410-asr1000

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