CVE-2018-2561

CVE-2018-2561 is a medium-severity vulnerability in Oracle Http Server with a CVSS 3.x base score of 5.3. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Description

Vulnerability in the Oracle HTTP Server component of Oracle Fusion Middleware (subcomponent: Web Listener). Supported versions that are affected are 11.1.1.7.0, 11.1.1.9.0, 12.1.3.0.0, 12.2.1.2.0 and 12.2.1.3.0. Easily exploitable vulnerability allows unauthenticated attacker with network access via HTTP to compromise Oracle HTTP Server. Successful attacks of this vulnerability can result in unauthorized ability to cause a partial denial of service (partial DOS) of Oracle HTTP Server. CVSS 3.0 Base Score 5.3 (Availability impacts). CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L).

Frequently asked questions

What is CVE-2018-2561?
Vulnerability in the Oracle HTTP Server component of Oracle Fusion Middleware (subcomponent: Web Listener). Supported versions that are affected are 11.1.1.7.0, 11.1.1.9.0, 12.1.3.0.0, 12.2.1.2.0 and 12.2.1.3.0. Easily exploitable vulnerability allows unauthenticated attacker with network access via HTTP to compromise Oracle HTTP Server. Successful attacks of this vulnerability can result in unauthorized ability to cause a partial denial of service (partial DOS) of Oracle HTTP Server. CVSS 3.0 Base Score 5.3 (Availability impacts). CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L).
How severe is CVE-2018-2561?
CVE-2018-2561 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability low.
Is CVE-2018-2561 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-2018-2561?
CVE-2018-2561 primarily affects Oracle Http Server. In total, 5 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2018-2561?
Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2018-2561 published?
CVE-2018-2561 was published on 2018-01-18 and last updated on 2026-06-17.

References

Affected products (5)

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