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.
CVE-2005-2640 is a security vulnerability that . Impacting 16 products from neoteris, from juniper, from netscreen and 13 others, organizations running these solutions should prioritize assessment and patching.
Originally identified in 2005, this vulnerability predates many modern security frameworks and practices. The vulnerability landscape of that era was characterized by different threat models and less mature defense mechanisms compared to contemporary standards.
2005-08-23T04:00:00.000
2025-04-03T01:03:51.193
Deferred
CVSSv2: 5.0 (MEDIUM)
AV:N/AC:L/Au:N/C:P/I:N/A:N
10.0
2.9
| Type | Vendor | Product | Version/Range | Vulnerable? |
|---|---|---|---|---|
| Application | neoteris | instant_virtual_extranet | 3.0 | Yes |
| Application | neoteris | instant_virtual_extranet | 3.1 | Yes |
| Application | neoteris | instant_virtual_extranet | 3.2 | Yes |
| Application | neoteris | instant_virtual_extranet | 3.3 | Yes |
| Application | neoteris | instant_virtual_extranet | 3.3.1 | Yes |
| Operating System | juniper | netscreen_screenos | 1.7 | Yes |
| Operating System | juniper | netscreen_screenos | 1.64 | Yes |
| Operating System | juniper | netscreen_screenos | 1.66 | Yes |
| Operating System | juniper | netscreen_screenos | 1.66_r2 | Yes |
| Operating System | juniper | netscreen_screenos | 1.73_r1 | Yes |
| Operating System | juniper | netscreen_screenos | 1.73_r2 | Yes |
| Operating System | juniper | netscreen_screenos | 2.0.1_r8 | Yes |
| Operating System | juniper | netscreen_screenos | 2.1 | Yes |
| Operating System | juniper | netscreen_screenos | 2.1_r6 | Yes |
| Operating System | juniper | netscreen_screenos | 2.1_r7 | Yes |
| Operating System | juniper | netscreen_screenos | 2.5 | Yes |
| Operating System | juniper | netscreen_screenos | 2.5r1 | Yes |
| Operating System | juniper | netscreen_screenos | 2.5r2 | Yes |
| Operating System | juniper | netscreen_screenos | 2.5r6 | Yes |
| Operating System | juniper | netscreen_screenos | 2.6.0 | Yes |
| Operating System | juniper | netscreen_screenos | 2.6.1 | Yes |
| Operating System | juniper | netscreen_screenos | 2.6.1r1 | Yes |
| Operating System | juniper | netscreen_screenos | 2.6.1r2 | Yes |
| Operating System | juniper | netscreen_screenos | 2.6.1r3 | Yes |
| Operating System | juniper | netscreen_screenos | 2.6.1r4 | Yes |
| Operating System | juniper | netscreen_screenos | 2.6.1r5 | Yes |
| Operating System | juniper | netscreen_screenos | 2.6.1r6 | Yes |
| Operating System | juniper | netscreen_screenos | 2.6.1r7 | Yes |
| Operating System | juniper | netscreen_screenos | 2.6.1r8 | Yes |
| Operating System | juniper | netscreen_screenos | 2.6.1r9 | Yes |
| Operating System | juniper | netscreen_screenos | 2.6.1r10 | Yes |
| Operating System | juniper | netscreen_screenos | 2.6.1r11 | Yes |
| Operating System | juniper | netscreen_screenos | 2.6.1r12 | Yes |
| Operating System | juniper | netscreen_screenos | 2.7.1 | Yes |
| Operating System | juniper | netscreen_screenos | 2.7.1r1 | Yes |
| Operating System | juniper | netscreen_screenos | 2.7.1r2 | Yes |
| Operating System | juniper | netscreen_screenos | 2.7.1r3 | Yes |
| Operating System | juniper | netscreen_screenos | 2.8 | Yes |
| Operating System | juniper | netscreen_screenos | 2.8_r1 | Yes |
| Operating System | juniper | netscreen_screenos | 2.10_r3 | Yes |
| Operating System | juniper | netscreen_screenos | 2.10_r4 | Yes |
| Operating System | juniper | netscreen_screenos | 3.0.0 | Yes |
| Operating System | juniper | netscreen_screenos | 3.0.0r1 | Yes |
| Operating System | juniper | netscreen_screenos | 3.0.0r2 | Yes |
| Operating System | juniper | netscreen_screenos | 3.0.0r3 | Yes |
| Operating System | juniper | netscreen_screenos | 3.0.0r4 | Yes |
| Operating System | juniper | netscreen_screenos | 3.0.1 | Yes |
| Operating System | juniper | netscreen_screenos | 3.0.1r1 | Yes |
| Operating System | juniper | netscreen_screenos | 3.0.1r2 | Yes |
| Operating System | juniper | netscreen_screenos | 3.0.1r3 | Yes |
| Operating System | juniper | netscreen_screenos | 3.0.1r4 | Yes |
| Operating System | juniper | netscreen_screenos | 3.0.1r5 | Yes |
| Operating System | juniper | netscreen_screenos | 3.0.1r6 | Yes |
| Operating System | juniper | netscreen_screenos | 3.0.1r7 | Yes |
| Operating System | juniper | netscreen_screenos | 3.0.2 | Yes |
| Operating System | juniper | netscreen_screenos | 3.0.3 | Yes |
| Operating System | juniper | netscreen_screenos | 3.0.3_r1.1 | Yes |
| Operating System | juniper | netscreen_screenos | 3.0.3r1 | Yes |
| Operating System | juniper | netscreen_screenos | 3.0.3r2 | Yes |
| Operating System | juniper | netscreen_screenos | 3.0.3r3 | Yes |
| Operating System | juniper | netscreen_screenos | 3.0.3r4 | Yes |
| Operating System | juniper | netscreen_screenos | 3.0.3r5 | Yes |
| Operating System | juniper | netscreen_screenos | 3.0.3r6 | Yes |
| Operating System | juniper | netscreen_screenos | 3.0.3r7 | Yes |
| Operating System | juniper | netscreen_screenos | 3.0.3r8 | Yes |
| Operating System | juniper | netscreen_screenos | 3.1.0 | Yes |
| Operating System | juniper | netscreen_screenos | 3.1.0r1 | Yes |
| Operating System | juniper | netscreen_screenos | 3.1.0r2 | Yes |
| Operating System | juniper | netscreen_screenos | 3.1.0r3 | Yes |
| Operating System | juniper | netscreen_screenos | 3.1.0r4 | Yes |
| Operating System | juniper | netscreen_screenos | 3.1.0r5 | Yes |
| Operating System | juniper | netscreen_screenos | 3.1.0r6 | Yes |
| Operating System | juniper | netscreen_screenos | 3.1.0r7 | Yes |
| Operating System | juniper | netscreen_screenos | 3.1.0r8 | Yes |
| Operating System | juniper | netscreen_screenos | 3.1.0r9 | Yes |
| Operating System | juniper | netscreen_screenos | 3.1.0r10 | Yes |
| Operating System | juniper | netscreen_screenos | 3.1.0r11 | Yes |
| Operating System | juniper | netscreen_screenos | 3.1.0r12 | Yes |
| Operating System | juniper | netscreen_screenos | 3.1.1_r2 | Yes |
| Operating System | juniper | netscreen_screenos | 4.0.0 | Yes |
| Operating System | juniper | netscreen_screenos | 4.0.0 | Yes |
| Operating System | juniper | netscreen_screenos | 4.0.0r1 | Yes |
| Operating System | juniper | netscreen_screenos | 4.0.0r2 | Yes |
| Operating System | juniper | netscreen_screenos | 4.0.0r3 | Yes |
| Operating System | juniper | netscreen_screenos | 4.0.0r4 | Yes |
| Operating System | juniper | netscreen_screenos | 4.0.0r5 | Yes |
| Operating System | juniper | netscreen_screenos | 4.0.0r6 | Yes |
| Operating System | juniper | netscreen_screenos | 4.0.0r7 | Yes |
| Operating System | juniper | netscreen_screenos | 4.0.0r8 | Yes |
| Operating System | juniper | netscreen_screenos | 4.0.0r9 | Yes |
| Operating System | juniper | netscreen_screenos | 4.0.0r10 | Yes |
| Operating System | juniper | netscreen_screenos | 4.0.0r11 | Yes |
| Operating System | juniper | netscreen_screenos | 4.0.0r12 | Yes |
| Operating System | juniper | netscreen_screenos | 4.0.1 | Yes |
| Operating System | juniper | netscreen_screenos | 4.0.1r1 | Yes |
| Operating System | juniper | netscreen_screenos | 4.0.1r2 | Yes |
| Operating System | juniper | netscreen_screenos | 4.0.1r3 | Yes |
| Operating System | juniper | netscreen_screenos | 4.0.1r4 | Yes |
| Operating System | juniper | netscreen_screenos | 4.0.1r5 | Yes |
| Operating System | juniper | netscreen_screenos | 4.0.1r6 | Yes |
| Operating System | juniper | netscreen_screenos | 4.0.1r7 | Yes |
| Operating System | juniper | netscreen_screenos | 4.0.1r8 | Yes |
| Operating System | juniper | netscreen_screenos | 4.0.1r9 | Yes |
| Operating System | juniper | netscreen_screenos | 4.0.1r10 | Yes |
| Operating System | juniper | netscreen_screenos | 4.0.2 | Yes |
| Operating System | juniper | netscreen_screenos | 4.0.3 | Yes |
| Operating System | juniper | netscreen_screenos | 4.0.3r1 | Yes |
| Operating System | juniper | netscreen_screenos | 4.0.3r2 | Yes |
| Operating System | juniper | netscreen_screenos | 4.0.3r3 | Yes |
| Operating System | juniper | netscreen_screenos | 4.0.3r4 | Yes |
| Operating System | juniper | netscreen_screenos | 5.0.0 | Yes |
| Operating System | juniper | netscreen_screenos | 5.1.0 | Yes |
| Operating System | juniper | netscreen_screenos | 5.1.0r3a | Yes |
| Operating System | juniper | netscreen_screenos | 5.2.0 | Yes |
| Operating System | netscreen | ns-10 | * | Yes |
| Operating System | netscreen | ns-100 | 3.0_.pe1.0 | Yes |
| Operating System | netscreen | ns-204 | 5.0.0_r6.0 | Yes |
| Operating System | netscreen | ns-204 | 0110.0_11_4.0_r10.0 | Yes |
| Operating System | netscreen | ns-204 | 0110.0_11_5.1.0_r3a | Yes |
| Operating System | netscreen | ns-500 | 4110.0_11_4.0_r10.0 | Yes |
| Operating System | netscreen | ns-500 | 4110.0_11_5.1.0_r3a | Yes |
| Operating System | netscreen | ns-50ns25 | 5.0.0_r6.0 | Yes |
| Hardware | juniper | netscreen-5gt | 5.0 | Yes |
| Hardware | juniper | netscreen-idp | 3.0 | Yes |
| Hardware | juniper | netscreen-idp | 3.0r1 | Yes |
| Hardware | juniper | netscreen-idp | 3.0r2 | Yes |
| Hardware | juniper | netscreen-idp_10 | 3.0.1_r1 | Yes |
| Hardware | juniper | netscreen-idp_100 | 3.0.1_r1 | Yes |
| Hardware | juniper | netscreen-idp_1000 | 3.0.1_r1 | Yes |
| Hardware | juniper | netscreen-idp_500 | 3.0.1_r1 | Yes |
| Hardware | netscreen | netscreen-sa_5000_series | * | Yes |
| Hardware | netscreen | netscreen-sa_5020_series | 4.2_r2.2 | Yes |
| Hardware | netscreen | netscreen-sa_5050_series | 4.2_r2.2 | Yes |
SecUtils normalizes and enriches National Vulnerability Database (NVD) records by standardizing vendor and product identifiers, aggregating vulnerability metadata from both NVD and MITRE sources, and providing structured context for security teams. For neoteris's affected products, we extract Common Platform Enumeration (CPE) data, Common Weakness Enumeration (CWE) classifications, CVSS severity metrics, and reference data to enable rapid vulnerability prioritization and asset correlation. This record contains no exploit code, proof-of-concept instructions, or attack methodologies—only defensive intelligence necessary for patch management, risk assessment, and security operations.