CVE-2008-1618

N/A Unknown
Published: April 07, 2008 Modified: April 23, 2026
View on NVD

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.

AI Explanation

Get an AI-powered plain-language explanation of this vulnerability and remediation steps.

Login to generate AI explanation

References to Advisories, Solutions, and Tools

Patch Vendor Advisory Exploit Third Party Advisory
http://secunia.com/advisories/29708
Source: cve@mitre.org
Vendor Advisory
http://www.mwrinfosecurity.com/publications/mwri_watchguard-firebox-pptp-vpn-user-enumeration-advisory_2008-04-04.pdf
Source: cve@mitre.org
Exploit Patch
http://www.osvdb.org/44218
Source: cve@mitre.org
http://www.securityfocus.com/bid/28619
Source: cve@mitre.org
http://www.securitytracker.com/id?1019796
Source: cve@mitre.org
http://www.vupen.com/english/advisories/2008/1152/references
Source: cve@mitre.org
Vendor Advisory
https://exchange.xforce.ibmcloud.com/vulnerabilities/41683
Source: cve@mitre.org
http://secunia.com/advisories/29708
Source: af854a3a-2127-422b-91ae-364da2661108
Vendor Advisory
http://www.mwrinfosecurity.com/publications/mwri_watchguard-firebox-pptp-vpn-user-enumeration-advisory_2008-04-04.pdf
Source: af854a3a-2127-422b-91ae-364da2661108
Exploit Patch
http://www.osvdb.org/44218
Source: af854a3a-2127-422b-91ae-364da2661108
http://www.securityfocus.com/bid/28619
Source: af854a3a-2127-422b-91ae-364da2661108
http://www.securitytracker.com/id?1019796
Source: af854a3a-2127-422b-91ae-364da2661108
http://www.vupen.com/english/advisories/2008/1152/references
Source: af854a3a-2127-422b-91ae-364da2661108
Vendor Advisory
https://exchange.xforce.ibmcloud.com/vulnerabilities/41683
Source: af854a3a-2127-422b-91ae-364da2661108

14 reference(s) from NVD

Quick Stats

CVSS v3 Score
N/A / 10.0
EPSS (Exploit Probability)
0.7%
73th percentile
Exploitation Status
Not in CISA KEV

Weaknesses (CWE)

CWE-200

Affected Vendors

watchguard

Related CVEs

CVE-2026-42615 7.2
CVE-2026-23773 4.3
CVE-2026-40560 N/A
CVE-2026-7363 N/A
CVE-2026-7361 N/A