CVE-2018-3109

Vulnerability in the Oracle Fusion Middleware MapViewer component of Oracle Fusion Middleware (subcomponent: Map Builder). Supported versions that are affected are 12.2.1.2 and 12.2.1.3. Easily exploitable vulnerability allows low privileged attacker with network access via HTTP to compromise Oracle Fusion Middleware MapViewer. Successful attacks of this vulnerability can result in unauthorized access to critical data or complete access to all Oracle Fusion Middleware MapViewer accessible data. CVSS 3.0 Base Score 6.5 (Confidentiality impacts). CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N).

Published: 2018-08-02 Last update: 2026-06-16 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2018-3109 is rated Moderate Risk (54.5/100): CVSS Medium severity, with medium exploitation likelihood (EPSS 1.99%). EPSS rose +1.20% 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-2018-3109

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 0.79% 1.99% +1.20%
2 2025-08-20 0.94% 0.79% -0.15%
3 2025-05-18 — 0.94% —

Full EPSS history (11 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2018-3109

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
6.5 3.0 MEDIUM
CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:L)
A normal user session is enough; they don’t have to be admin.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:N)
Data isn’t meaningfully altered or forged.
Availability (A:N)
Service keeps running; no real outage angle.
 2.8 3.6 [email protected]
4.0 2.0 MEDIUM
AV:N/AC:L/Au:S/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:S)
A single authentication is required.
Confidentiality impact (C:P)
Partial confidentiality impact.
Integrity impact (I:N)
No integrity impact.
Availability impact (A:N)
No availability impact.
 8.0 2.9 [email protected]

Weakness enumeration for CVE-2018-3109

Affected software / configurations for CVE-2018-3109

Vendor Product Version Raw CPE
oracle fusion_middleware 12.2.1.2 cpe:2.3:a:oracle:fusion_middleware:12.2.1.2:*:*:*:*:*:*:*
oracle fusion_middleware 12.2.1.3 cpe:2.3:a:oracle:fusion_middleware:12.2.1.3:*:*:*:*:*:*:*

References for CVE-2018-3109

cvelogic Threat Intelligence