CVE-2008-1618 json
The PPTP VPN service in Watchguard Firebox before 10, when performing the MS-CHAPv2 authentication handshake, generates different error cod…
published 2008-04-07 18 y ago modified 2026-06-16 4 mo ago also EUVD-2008-1619
- cvss
- 5.0
- version 2.0, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 1.7%
- EPSS 1.7% chance of exploitation in 30 days, percentile 77%
- public exploits
- 0
- none known
Summary
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.
Patch / fix
Exploit prediction
1.74% chance of exploitation in the next 30 days, higher than 77% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- mwrinfosecurity.com http://www.mwrinfosecurity.com/publications/mwri_watchguard-firebox-pptp-vpn-user-enumeration-advisory_2008-04-04.pdf referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 2.0 | 5.0 | AV:N/AC:L/Au:N/C:P/I:N/A:N |
Classification
- Weakness
-
- CWE-200 Exposure of Sensitive Information to an Unauthorized Actor
References
-
mwrinfosecurity.com
/publications/mwri_watchguard-firebox-pptp-vpn-user-enumeration-advisory_2008-04-04.pdf
exploit, patch
-
vupen.com
/english/advisories/2008/1152/references
vdb-entry, vendor-advisory
-
secunia.com
/advisories/29708
third-party-advisory, vendor-advisory
-
osvdb.org
/44218
vdb-entry
-
securityfocus.com
/bid/28619
vdb-entry
-
exchange.xforce.ibmcloud.com
/vulnerabilities/41683
vdb-entry
-
securitytracker.com
/id?1019796
vdb-entry
Sources
- CVE List CVE-2008-1618
- NVD CVE-2008-1618
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