How severe is CVE-2018-3109?

CVE-2018-3109 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.

Is CVE-2018-3109 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (78th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2018-3109?

CVE-2018-3109 primarily affects Oracle Fusion Middleware. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2018-3109?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2018-3109 published?

CVE-2018-3109 was published on 2018-08-02 and last updated on 2026-06-17.

CVE-2018-3109

CVE-2018-3109 is a medium-severity vulnerability in Oracle Fusion Middleware with a CVSS 3.x base score of 6.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Severity: Medium (CVSS 3.x base score 6.5)
CVSS v2: 4.0
EPSS exploit prediction: 2% (78th percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Oracle Fusion Middleware
Published: 2018-08-02
Last modified: 2026-06-17

Description

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).

Frequently asked questions

What is 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).
How severe is CVE-2018-3109?: CVE-2018-3109 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.
Is CVE-2018-3109 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (78th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2018-3109?: CVE-2018-3109 primarily affects Oracle Fusion Middleware. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2018-3109?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2018-3109 published?: CVE-2018-3109 was published on 2018-08-02 and last updated on 2026-06-17.

References

Affected products (2)

cpe:2.3:a:oracle:fusion_middleware:12.2.1.2:*:*:*:*:*:*:*
cpe:2.3:a:oracle:fusion_middleware:12.2.1.3:*:*:*:*:*:*:*

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