CVE-2008-1618: n/a vulnerability

CVE-2008-1618: The PPTP VPN service in Watchguard Firebox before 10, when performing the MS-CHAPv2 authentication handshak...

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.

UnknownCVSS not scoredNot KEV-listedUpdatedAug 7, 2024, 08:24 UTC (UTC+00:00)

Security readout for executives and security teams

This issue lets an internet-facing PPTP VPN on WatchGuard Firebox before version 10 reveal whether a submitted username exists. By itself, that is not account compromise, but it can make password guessing and targeted access attempts easier against legacy VPN infrastructure. Exposure is most likely where legacy WatchGuard Firebox systems before version 10 still run PPTP VPN reachable from untrusted networks. Treat as a legacy VPN risk. It is not described as direct takeover, but exposed account enumeration can materially assist credential attacks. Mitigation focus: Inventory WatchGuard Firebox appliances and versions.; Identify whether PPTP VPN is enabled and externally reachable.; Prioritize replacement or upgrade of pre-10 Firebox deployments..

Prepared: Jun 28, 2026, 19:09 UTC (UTC+00:00)

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

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Vulnerability profileCVE Program record

Severity: Unknown
CVSS: Not scored
Known Exploited: No
Published: Apr 7, 2008, 18:00 UTC (UTC+00:00)

Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

0CVSS vectors

0Timeline events

0ADP providers

2Source links

CVSS and timeline data

No CVSS vectors or timeline events were available in the normalized CVE source material.

Source materials

CVE List V5 sourceCVE List V5
firebox-pptpvpn-mschapv2-info-disclosure(41683)CVE reference · vdb-entry, x_refsource_XF

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus

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Weakness

CWE details

No CWE listed

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