How severe is CVE-2023-22087?

CVE-2023-22087 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2023-22087 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (43rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-22087?

CVE-2023-22087 affects Oracle Hospitality Opera 5 Property Services. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2023-22087?

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-2023-22087 published?

CVE-2023-22087 was published on 2023-10-17 and last updated on 2026-06-17.

CVE-2023-22087

CVE-2023-22087 is a high-severity vulnerability in Oracle Hospitality Opera 5 Property Services with a CVSS 3.x base score of 8.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-306.

Key facts

Severity: High (CVSS 3.x base score 8.8)
EPSS exploit prediction: 1% (43rd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-306
Affected product: Oracle Hospitality Opera 5 Property Services
Published: 2023-10-17
Last modified: 2026-06-17

Description

Vulnerability in the Hospitality OPERA 5 Property Services product of Oracle Hospitality Applications (component: Opera). The supported version that is affected is 5.6. Easily exploitable vulnerability allows low privileged attacker with network access via HTTP to compromise Hospitality OPERA 5 Property Services. Successful attacks of this vulnerability can result in takeover of Hospitality OPERA 5 Property Services. CVSS 3.1 Base Score 8.8 (Confidentiality, Integrity and Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H).

Frequently asked questions

What is CVE-2023-22087?: Vulnerability in the Hospitality OPERA 5 Property Services product of Oracle Hospitality Applications (component: Opera). The supported version that is affected is 5.6. Easily exploitable vulnerability allows low privileged attacker with network access via HTTP to compromise Hospitality OPERA 5 Property Services. Successful attacks of this vulnerability can result in takeover of Hospitality OPERA 5 Property Services. CVSS 3.1 Base Score 8.8 (Confidentiality, Integrity and Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H).
How severe is CVE-2023-22087?: CVE-2023-22087 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2023-22087 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (43rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-22087?: CVE-2023-22087 affects Oracle Hospitality Opera 5 Property Services. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2023-22087?: 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-2023-22087 published?: CVE-2023-22087 was published on 2023-10-17 and last updated on 2026-06-17.

References

https://www.oracle.com/security-alerts/cpuoct2023.html

Affected products (1)

cpe:2.3:a:oracle:hospitality_opera_5_property_services:5.6:*:*:*:*:*:*:*

More vulnerabilities in Oracle Hospitality Opera 5 Property Services

CVE-2026-34311 — Critical (CVSS 9.8): Vulnerability in the Oracle Hospitality OPERA 5 Property Services product of Oracle Hospitality Applications…
CVE-2023-22085 — High (CVSS 8.8): Vulnerability in the Hospitality OPERA 5 Property Services product of Oracle Hospitality Applications (component:…
CVE-2016-5563 — High (CVSS 7.9): Unspecified vulnerability in the Oracle Hospitality OPERA 5 Property Services component in Oracle Hospitality…
CVE-2016-5565 — High (CVSS 7.7): Unspecified vulnerability in the Oracle Hospitality OPERA 5 Property Services component in Oracle Hospitality…
CVE-2016-5564 — High (CVSS 7.4): Unspecified vulnerability in the Oracle Hospitality OPERA 5 Property Services component in Oracle Hospitality…
CVE-2023-21932 — High (CVSS 7.2): Vulnerability in the Oracle Hospitality OPERA 5 Property Services product of Oracle Hospitality Applications…

All CVEs affecting Oracle Hospitality Opera 5 Property Services →

Other CWE-306 (Missing Authentication for Critical Function) vulnerabilities

CVE-2026-54309 — Critical (CVSS 10.0): n8n is an open source workflow automation platform. Prior to 2.25.7 and 2.26.2, when @n8n/mcp-browser is run in HTTP…
CVE-2026-50242 — Critical (CVSS 10.0): In JetBrains Hub before 2026.1.13757, 2025.3.148033, 2025.2.148048, 2025.1.148120, 2024.3.148430, 2024.2.148429…
CVE-2026-49257 — Critical (CVSS 10.0): mcp-pinot is a Python-based Model Context Protocol (MCP) server for interacting with Apache Pinot. In versions 3.0.1…
CVE-2026-46846 — Critical (CVSS 10.0): Vulnerability in the Oracle WebCenter Portal product of Oracle Fusion Middleware (component: Security Framework).…
CVE-2026-46803 — Critical (CVSS 10.0): Vulnerability in the Oracle WebCenter Portal product of Oracle Fusion Middleware (component: Security Framework).…
CVE-2026-46800 — Critical (CVSS 10.0): Vulnerability in the Oracle WebCenter Sites product of Oracle Fusion Middleware (component: WebCenter Sites).…

Browse all CWE-306 (Missing Authentication for Critical Function) vulnerabilities →