Unrated severityNVD Advisory· Published Sep 26, 2008· Updated Jun 16, 2026
CVE-2008-3803
CVE-2008-3803
Description
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.
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LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
4cpe:2.3:o:cisco:ios:12.0s:*:*:*:*:*:*:*+ 3 more
- cpe:2.3:o:cisco:ios:12.0s:*:*:*:*:*:*:*
- cpe:2.3:o:cisco:ios:12.0sx:*:*:*:*:*:*:*
- cpe:2.3:o:cisco:ios:12.0sz:*:*:*:*:*:*:*
- (no CPE)range: 12.0 - 12.4
Patches
Vulnerability mechanics
References
6- secunia.com/advisories/31990nvdThird Party Advisory
- www.cisco.com/en/US/products/products_security_advisory09186a0080a014a9.shtmlnvdVendor Advisory
- www.securityfocus.com/bid/31366nvdThird Party AdvisoryVDB Entry
- www.securitytracker.com/idnvdBroken LinkThird Party AdvisoryVDB Entry
- oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A5919nvdThird Party Advisory
- www.vupen.com/english/advisories/2008/2670nvdPermissions Required
News mentions
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