CVE-2008-3803

A "logic error" in Cisco IOS 12.0 through 12.4, when a Multiprotocol Label Switching (MPLS) VPN with extended communities is configured, sometimes causes a corrupted route target (RT) to be used, which allows remote attackers to read traffic from other VPNs in opportunistic circumstances.

• http://secunia.com/advisories/31990Third Party Advisory
• http://www.cisco.com/en/US/products/products_security_advisory09186a0080a014a9.shtmlVendor Advisory
• http://www.securityfocus.com/bid/31366Third Party Advisory, VDB Entry
• http://www.securitytracker.com/id?1020940Broken Link, Third Party Advisory, VDB Entry
• http://www.vupen.com/english/advisories/2008/2670Permissions Required
• https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A5919Third Party Advisory
• http://secunia.com/advisories/31990Third Party Advisory
• http://www.cisco.com/en/US/products/products_security_advisory09186a0080a014a9.shtmlVendor Advisory
• http://www.securityfocus.com/bid/31366Third Party Advisory, VDB Entry
• http://www.securitytracker.com/id?1020940Broken Link, Third Party Advisory, VDB Entry
• http://www.vupen.com/english/advisories/2008/2670Permissions Required
• https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A5919Third 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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