CVE-2009-2049

Published: Jul 30, 2009Modified: Apr 23, 2026

5.4

Vector

AV:N/AC:H/Au:N/C:N/I:N/A:C

Exploitability: 4.9 / Impact: 6.9

Source: NVD

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.

Affected (15)

Products: Cisco: Ios, Ios Xe

Cisco

2 products

Ios

Ios Xe

Configuration A

15 vulnerable

Vulnerable Software	Affected Versions
Cisco Ios	Version 12.0(32)s12
Cisco Ios	Version 12.0(32)s13
Cisco Ios	Version 12.0(32)sy8
Cisco Ios	Version 12.0(32)sy9
Cisco Ios	Version 12.0(33)s3
Cisco Ios	Version 12.0(33)s4
Cisco Ios	Version 12.2(33)sxi1
Cisco Ios	Version 12.2(33)sxi2
Cisco Ios	Version 12.2xnc
Cisco Ios	Version 12.2xnd
Cisco Ios	Version 12.4(24)t1
Cisco Ios Xe	Version 2.3.1t
Cisco Ios Xe	Version 2.3
Cisco Ios Xe	Version 2.4.0
Cisco Ios Xe	Version 2.4