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CVE-2009-0635

nvd nist
Published: Mar 27, 2009Modified: Apr 23, 2026

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7.1
Vector
AV:N/AC:M/Au:N/C:N/I:N/A:C
Exploitability: 8.6 / Impact: 6.9
Source: NVD

Description

Memory leak in the Cisco Tunneling Control Protocol (cTCP) encapsulation feature in Cisco IOS 12.4, when an Easy VPN (aka EZVPN) server is enabled, allows remote attackers to cause a denial of service (memory consumption and device crash) via a sequence of TCP packets.

Affected (3)

Products: Cisco: Ios
Cisco
1 product
Ios
Configuration A
3 vulnerable
Vulnerable SoftwareAffected Versions
Cisco
Ios
Version 12.4t
Ios
Version 12.4xz
Ios
Version 12.4ya

Related CWEs

CWE-399
CWE-399

References (14)

Source: psirt@cisco.com
Vendor Advisory
Source: psirt@cisco.com
PatchVendor Advisory
Source: psirt@cisco.com
PatchVendor Advisory
Source: psirt@cisco.com
Source: psirt@cisco.com
Source: psirt@cisco.com
Vendor Advisory
Source: psirt@cisco.com
Source: af854a3a-2127-422b-91ae-364da2661108
Vendor Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
PatchVendor Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
PatchVendor Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
Source: af854a3a-2127-422b-91ae-364da2661108
Source: af854a3a-2127-422b-91ae-364da2661108
Vendor Advisory
Source: af854a3a-2127-422b-91ae-364da2661108

Timeline

No history available yet.