CVE-2015-4921

Unspecified vulnerability in the Database Vault component in Oracle Database Server 11.2.0.4, 12.1.0.1, and 12.1.0.2 allows remote authenticated users to affect integrity via unknown vectors.

Published: 2016-01-20 Last update: 2026-06-16 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2015-4921 is rated Moderate Risk (40.4/100): CVSS Medium severity, with medium exploitation likelihood (EPSS 1.31%). EPSS rose +1.09% 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-2015-4921

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 0.21% 1.31% +1.09%
2 2025-03-17 0.09% 0.21% +0.13%
3 2023-03-07 — 0.09% —

Full EPSS history (4 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2015-4921

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
4.0 2.0 MEDIUM
AV:N/AC:L/Au:S/C:N/I:P/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:S)
A single authentication is required.
Confidentiality impact (C:N)
No confidentiality impact.
Integrity impact (I:P)
Partial integrity impact.
Availability impact (A:N)
No availability impact.
 8.0 2.9 [email protected]

Weakness enumeration for CVE-2015-4921

Affected software / configurations for CVE-2015-4921

Vendor Product Version Raw CPE
oracle database_server 11.2.0.4 cpe:2.3:a:oracle:database_server:11.2.0.4:*:*:*:*:*:*:*
oracle database_server 12.1.0.1 cpe:2.3:a:oracle:database_server:12.1.0.1:*:*:*:*:*:*:*
oracle database_server 12.1.0.2 cpe:2.3:a:oracle:database_server:12.1.0.2:*:*:*:*:*:*:*

References for CVE-2015-4921

cvelogic Threat Intelligence