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Vulnerability Details : CVE-2009-2049

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.
Publish Date : 2009-07-30 Last Update Date : 2017-09-28
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- CVSS Scores & Vulnerability Types

CVSS Score
Confidentiality Impact None (There is no impact to the confidentiality of the system.)
Integrity Impact None (There is no impact to the integrity of the system)
Availability Impact Complete (There is a total shutdown of the affected resource. The attacker can render the resource completely unavailable.)
Access Complexity High (Specialized access conditions exist. It is hard to exploit and several special conditions must be satisfied to exploit)
Authentication Not required (Authentication is not required to exploit the vulnerability.)
Gained Access None
Vulnerability Type(s) Denial Of Service

- Related OVAL Definitions

Title Definition Id Class Family
Cisco IOS Software BGP Routing Dos Vulnerability oval:org.mitre.oval:def:6853 ios
OVAL (Open Vulnerability and Assessment Language) definitions define exactly what should be done to verify a vulnerability or a missing patch. Check out the OVAL definitions if you want to learn what you should do to verify a vulnerability.

- Products Affected By CVE-2009-2049

# Product Type Vendor Product Version Update Edition Language
1 OS Cisco IOS 12.0(32)sy8 Version Details Vulnerabilities
2 OS Cisco IOS 12.0(32)sy9 Version Details Vulnerabilities
3 OS Cisco IOS 12.0(32)s12 Version Details Vulnerabilities
4 OS Cisco IOS 12.0(32)s13 Version Details Vulnerabilities
5 OS Cisco IOS 12.0(33)s3 Version Details Vulnerabilities
6 OS Cisco IOS 12.0(33)s4 Version Details Vulnerabilities
7 OS Cisco IOS 12.2(33)sxi2 Version Details Vulnerabilities
8 OS Cisco IOS 12.2xnd Version Details Vulnerabilities
9 OS Cisco IOS 12.2(33)sxi1 Version Details Vulnerabilities
10 OS Cisco IOS 12.2xnc Version Details Vulnerabilities
11 OS Cisco IOS 12.4(24)t1 Version Details Vulnerabilities
12 OS Cisco Ios Xe 2.3 Version Details Vulnerabilities
13 OS Cisco Ios Xe 2.3.1t Version Details Vulnerabilities
14 OS Cisco Ios Xe 2.4 Version Details Vulnerabilities
15 OS Cisco Ios Xe 2.4.0 Version Details Vulnerabilities

- Number Of Affected Versions By Product

Vendor Product Vulnerable Versions
Cisco IOS 11
Cisco Ios Xe 4

- References For CVE-2009-2049
VUPEN ADV-2009-2082
SECTRACK 1022619
CISCO 20090729 Cisco IOS Software Border Gateway Protocol 4-Byte Autonomous System Number Vulnerabilities
BID 35860 Cisco IOS Malformed Border Gateway Protocol Update Denial of Service Vulnerability Release Date:2009-07-30

- Metasploit Modules Related To CVE-2009-2049

There are not any metasploit modules related to this CVE entry (Please visit for more information)

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