CVE-2005-1021

HighCVSS 7.1/10Last modified Jun 16, 2026

Description

Memory leak in Secure Shell (SSH) in Cisco IOS 12.0 through 12.3, when authenticating against a TACACS+ server, allows remote attackers to cause a denial of service (memory consumption) via an incorrect username or password.

Metrics

CVSS 2.0 7.1/10AV:N/AC:M/Au:N/C:N/I:N/A:C

Weakness enumeration

CWE-399

Affected software

No affected versions have been published.

Timeline

Published
May 2, 2005
Last modified
Jun 16, 2026
NVD status
Modified

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CVE-2005-1021: High severity, CVSS 7.1 | Vulnix