VULNERABILITY INTELLIGENCE

CVE-2009-0635

CVSS score7.1 NONE
EPSS probability2.51%
CISA KEVNot currently listed
Published2009-03-27
Last modified2026-06-16
CVSS vectorAV:N/AC:M/Au:N/C:N/I:N/A:C

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.

Weakness classification

  • nvd@nist.gov: CWE-399

Primary references