CVE-2005-2640 json
Behavioral discrepancy information leak in Juniper Netscreen VPN running ScreenOS 5.2.0 and earlier, when using IKE with pre-shared key aut…
published 2005-08-20 21 y ago modified 2026-06-16 4 mo ago also EUVD-2005-2641
- cvss
- 5.0
- version 2.0, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 7.1%
- EPSS 7.1% chance of exploitation in 30 days, percentile 94%
- public exploits
- 1
- Exploit-DB
Summary
Behavioral discrepancy information leak in Juniper Netscreen VPN running ScreenOS 5.2.0 and earlier, when using IKE with pre-shared key authentication, allows remote attackers to enumerate valid usernames via an IKE Aggressive Mode packet, which generates a response if the username is valid but does not respond when the username is invalid.
Timeline
- First public exploit (EDB-26168)
- Published
Exploit prediction
7.09% chance of exploitation in the next 30 days, higher than 94% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- EDB-26168 Juniper NetScreen 5.0 - VPN 'Username' Enumeration remote, 2005-08-18
- securityfocus.com http://www.securityfocus.com/bid/14595 referenced PoC, tagged "exploit" by a source, unverified
- nta-monitor.com http://www.nta-monitor.com/news/vpn-flaws/juniper/netscreen/index.htm 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 |
References
-
securityfocus.com
/bid/14595
vdb-entry, exploit
-
nta-monitor.com
/news/vpn-flaws/juniper/netscreen/index.htm
exploit, vendor-advisory
-
secunia.com
/advisories/16474/
third-party-advisory, vendor-advisory
-
marc.info
/?l=bugtraq&m=112438068426034&w=2
mailing-list
-
securitytracker.com
/id?1014728
vdb-entry
Sources
- CVE List CVE-2005-2640
- NVD CVE-2005-2640
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.