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CVE-2005-2640
Behavioral discrepancy information leak in Juniper Netscreen VPN running ScreenOS 5.2.0 and earlier, when using IKE with pre-shared key…
Medium5.0EPSS 7.1%
- Published
- Updated
- Reserved
- Assigned by
- mitre
Description
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.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 2.0 | Medium5.0 | AV:N/AC:L/Au:N/C:P/I:N/A:N |
- EPSS (exploitation in 30 days)
- 7.1% · top 5.7% of all CVEs (5 Nov 2026)
Loading the EPSS history…
The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 5.0.
Weakness
- n/a
Affected products
n/a
- affected n/a
References (5)
- 14595 (opens in a new tab)vdb-entryx_refsource_BIDx_transferred
- 20050818 Juniper Netscreen VPN Username Enumeration Vulnerability (opens in a new tab)mailing-listx_refsource_BUGTRAQx_transferred
- http://www.nta-monitor.com/news/vpn-flaws/juniper/netscreen/index.htm (opens in a new tab)x_refsource_MISCx_transferred
- 1014728 (opens in a new tab)vdb-entryx_refsource_SECTRACKx_transferred
- 16474 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://trackcve.app/cve/CVE-2005-2640)Record last updated .