What’s Vulnerable › Vulnerabilities

CVE-2009-1154

• Severity: low (CVSS 3.3 v2.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2009-08-21 · updated 2026-06-16
• Weakness: CWE-119

Description

Cisco IOS XR 3.8.1 and earlier allows remote attackers to cause a denial of service (process crash) via a long BGP UPDATE message, as demonstrated by a message with many AS numbers in the AS Path Attribute.

Affected products

• Cisco IOS XR Software: through 3.8.1; 3.4, 3.4.0, 3.4.1, 3.4.2, 3.4.3, 3.5 (+12)

References

• http://securitytracker.com/id?1022756
• http://www.cisco.com/en/US/products/products_security_advisory09186a0080af150f.shtml
• http://securitytracker.com/id?1022756
• http://www.cisco.com/en/US/products/products_security_advisory09186a0080af150f.shtml

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