CVE-2008-3806

Cisco IOS 12.0 through 12.4 on Cisco 10000, uBR10012 and uBR7200 series devices handles external UDP packets that are sent to 127.0.0.0/8 addresses intended for IPC communication within the device, which allows remote attackers to cause a denial of service (device or linecard reload) via crafted UDP packets, a different vulnerability than CVE-2008-3805.

• http://secunia.com/advisories/31990Third Party Advisory
• http://tools.cisco.com/security/center/viewAlert.x?alertId=16646Vendor Advisory
• http://www.cisco.com/en/US/products/products_security_advisory09186a0080a014ae.shtmlVendor Advisory
• https://exchange.xforce.ibmcloud.com/vulnerabilities/45592Third Party Advisory, VDB Entry
• https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A7123Third Party Advisory
• http://secunia.com/advisories/31990Third Party Advisory
• http://tools.cisco.com/security/center/viewAlert.x?alertId=16646Vendor Advisory
• http://www.cisco.com/en/US/products/products_security_advisory09186a0080a014ae.shtmlVendor Advisory
• https://exchange.xforce.ibmcloud.com/vulnerabilities/45592Third Party Advisory, VDB Entry
• https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A7123Third Party Advisory

Published

Sep 26, 2008

Last Modified

Jun 16, 2026

Status

Modified

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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