How severe is CVE-2018-2636?

CVE-2018-2636 has a CVSS 3.x base score of 8.1, rated high severity. It is exploitable over network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2018-2636 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 14% (96th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2018-2636?

CVE-2018-2636 primarily affects Oracle Hospitality Simphony. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2018-2636?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2018-2636 published?

CVE-2018-2636 was published on 2018-01-18 and last updated on 2026-06-17.

CVE-2018-2636

CVE-2018-2636 is a high-severity vulnerability in Oracle Hospitality Simphony with a CVSS 3.x base score of 8.1. Its EPSS exploit-prediction score of 14% places it in the 96th percentile, indicating an elevated likelihood of exploitation.

Key facts

Severity: High (CVSS 3.x base score 8.1)
CVSS v2: 6.8
EPSS exploit prediction: 14% (96th percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Oracle Hospitality Simphony
Published: 2018-01-18
Last modified: 2026-06-17

Description

Vulnerability in the Oracle Hospitality Simphony component of Oracle Hospitality Applications (subcomponent: Security). Supported versions that are affected are 2.7, 2.8 and 2.9. Difficult to exploit vulnerability allows unauthenticated attacker with network access via HTTP to compromise Oracle Hospitality Simphony. Successful attacks of this vulnerability can result in takeover of Oracle Hospitality Simphony. CVSS 3.0 Base Score 8.1 (Confidentiality, Integrity and Availability impacts). CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H).

Frequently asked questions

What is CVE-2018-2636?: Vulnerability in the Oracle Hospitality Simphony component of Oracle Hospitality Applications (subcomponent: Security). Supported versions that are affected are 2.7, 2.8 and 2.9. Difficult to exploit vulnerability allows unauthenticated attacker with network access via HTTP to compromise Oracle Hospitality Simphony. Successful attacks of this vulnerability can result in takeover of Oracle Hospitality Simphony. CVSS 3.0 Base Score 8.1 (Confidentiality, Integrity and Availability impacts). CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H).
How severe is CVE-2018-2636?: CVE-2018-2636 has a CVSS 3.x base score of 8.1, rated high severity. It is exploitable over network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2018-2636 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 14% (96th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2018-2636?: CVE-2018-2636 primarily affects Oracle Hospitality Simphony. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2018-2636?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2018-2636 published?: CVE-2018-2636 was published on 2018-01-18 and last updated on 2026-06-17.

References

Affected products (3)

cpe:2.3:a:oracle:hospitality_simphony:2.7:*:*:*:*:*:*:*
cpe:2.3:a:oracle:hospitality_simphony:2.8:*:*:*:*:*:*:*
cpe:2.3:a:oracle:hospitality_simphony:2.9:*:*:*:*:*:*:*

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