CVE-2008-1618

MediumCVSS 5.0/10Last modified Jun 16, 2026

Description

The PPTP VPN service in Watchguard Firebox before 10, when performing the MS-CHAPv2 authentication handshake, generates different error codes depending on whether the username is valid or invalid, which allows remote attackers to enumerate valid usernames.

Metrics

CVSS 2.0 5.0/10AV:N/AC:L/Au:N/C:P/I:N/A:N

Weakness enumeration

CWE-200

Affected software

No affected versions have been published.

Timeline

Published: Apr 7, 2008
Last modified: Jun 16, 2026
NVD status: Modified

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