CVE-2009-1076

Sun Java System Identity Manager (IdM) 7.0 through 8.0 responds differently to failed use of the end-user question-based login feature depending on whether the user account exists, which allows remote attackers to enumerate valid usernames.

Published: 2009-03-25 Last update: 2026-04-23 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2009-1076 is rated Moderate Risk (49.9/100): CVSS Medium severity, with medium exploitation likelihood (EPSS 2.29%). EPSS rose +1.60% over the last day, indicating growing attacker interest. Review affected assets and schedule remediation.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2009-1076

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-06-15 0.69% 2.29% +1.60%
2 2025-03-17 0.99% 0.69% -0.30%
3 2024-12-17 — 0.99% —

Full EPSS history (8 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2009-1076

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
5.0 2.0 MEDIUM
AV:N/AC:L/Au:N/C:P/I:N/A:N Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:L)
Exploitation conditions are straightforward and predictable.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:P)
Partial confidentiality impact.
Integrity impact (I:N)
No integrity impact.
Availability impact (A:N)
No availability impact.
 10.0 2.9 [email protected]

Weakness enumeration for CVE-2009-1076

Affected software / configurations for CVE-2009-1076

Vendor Product Version Raw CPE
sun java_system_identity_manager 7.0 cpe:2.3:a:sun:java_system_identity_manager:7.0:*:*:*:*:*:*:*
sun java_system_identity_manager 7.1 cpe:2.3:a:sun:java_system_identity_manager:7.1:*:*:*:*:*:*:*
sun java_system_identity_manager 7.1.1 cpe:2.3:a:sun:java_system_identity_manager:7.1.1:*:*:*:*:*:*:*
sun java_system_identity_manager 8.0 cpe:2.3:a:sun:java_system_identity_manager:8.0:*:*:*:*:*:*:*

References for CVE-2009-1076

cvelogic Threat Intelligence