Unrated severityNVD Advisory· Published Jul 30, 2009· Updated Jun 16, 2026
CVE-2009-2049
CVE-2009-2049
Description
Cisco IOS 12.0(32)S12 through 12.0(32)S13 and 12.0(33)S3 through 12.0(33)S4, 12.0(32)SY8 through 12.0(32)SY9, 12.2(33)SXI1 through 12.2(33)SXI2, 12.2XNC before 12.2(33)XNC2, 12.2XND before 12.2(33)XND1, and 12.4(24)T1; and IOS XE 2.3 through 2.3.1t and 2.4 through 2.4.0; when RFC4893 BGP routing is enabled, allows remote attackers to cause a denial of service (device reload) by using an RFC4271 peer to send a malformed update, aka Bug ID CSCta33973.
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Affected products
17cpe:2.3:o:cisco:ios:12.0\(32\)s12:*:*:*:*:*:*:*+ 11 more
- cpe:2.3:o:cisco:ios:12.0\(32\)s12:*:*:*:*:*:*:*
- cpe:2.3:o:cisco:ios:12.0\(32\)s13:*:*:*:*:*:*:*
- cpe:2.3:o:cisco:ios:12.0\(32\)sy8:*:*:*:*:*:*:*
- cpe:2.3:o:cisco:ios:12.0\(32\)sy9:*:*:*:*:*:*:*
- cpe:2.3:o:cisco:ios:12.0\(33\)s3:*:*:*:*:*:*:*
- cpe:2.3:o:cisco:ios:12.0\(33\)s4:*:*:*:*:*:*:*
- cpe:2.3:o:cisco:ios:12.2\(33\)sxi1:*:*:*:*:*:*:*
- cpe:2.3:o:cisco:ios:12.2\(33\)sxi2:*:*:*:*:*:*:*
- cpe:2.3:o:cisco:ios:12.2xnc:*:*:*:*:*:*:*
- cpe:2.3:o:cisco:ios:12.2xnd:*:*:*:*:*:*:*
- cpe:2.3:o:cisco:ios:12.4\(24\)t1:*:*:*:*:*:*:*
- (no CPE)range: 12.0(32)S12 through 12.0(32)S13, 12.0(33)S3 through 12.0(33)S4, 12.0(32)SY8 through 12.0(32)SY9, 12.2(33)SXI1 through 12.2(33)SXI2, 12.2XNC before 12.2(33)XNC2, 12.2XND before 12.2(33)XND1, 12.4(24)T1
cpe:2.3:o:cisco:ios_xe:2.3:*:*:*:*:*:*:*+ 4 more
- cpe:2.3:o:cisco:ios_xe:2.3:*:*:*:*:*:*:*
- cpe:2.3:o:cisco:ios_xe:2.3.1t:*:*:*:*:*:*:*
- cpe:2.3:o:cisco:ios_xe:2.4:*:*:*:*:*:*:*
- cpe:2.3:o:cisco:ios_xe:2.4.0:*:*:*:*:*:*:*
- (no CPE)range: 2.3 through 2.3.1t and 2.4 through 2.4.0
Patches
Vulnerability mechanics
References
6- www.cisco.com/en/US/products/products_security_advisory09186a0080aea4c9.shtmlnvdPatchVendor Advisory
- secunia.com/advisories/36046nvd
- www.securityfocus.com/bid/35860nvd
- www.securitytracker.com/idnvd
- www.vupen.com/english/advisories/2009/2082nvd
- oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A6853nvd
News mentions
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