Oracle

CVE-2023-21932: Vulnerability in the Oracle Hospitality OPERA 5 Property Services product of Oracle Hospitality Applications (compone…

Is it exploited?

Reported, not confirmed by CISA. VulnCheck KEV lists it as exploited in the wild. CISA has not added it to its Known Exploited Vulnerabilities catalog as of 29 Oct 2026.

VulnCheck KEV lists it since 25 Jul 2024. It cites 1 public report, the first from 25 Jul 2024.

cisa.gov

How likely is exploitation in the next 30 days?

45%

EPSS score, percentile 98.8 of all scored records. A probability estimated by FIRST, not a report of exploitation.

How severe?

7.2 High

CVSS v3.1 base score, given by the CNA

What should I do?

CISA has set no required action, because the vulnerability is not in KEV.

Advisories and patches (1)

Which versions are affected?

Affected

Versions by product

Source: CISA KEV 2026.10.29, as of 29 Oct 2026; VulnCheck KEV, as of 30 Oct 2026; FIRST EPSS, as of 30 Oct 2026; CVE List, as of 30 Oct 2026. About the data.

Description

Vulnerability in the Oracle Hospitality OPERA 5 Property Services product of Oracle Hospitality Applications (component: OXI). The supported version that is affected is 5.6. Difficult to exploit vulnerability allows high privileged attacker with network access via HTTP to compromise Oracle Hospitality OPERA 5 Property Services. While the vulnerability is in Oracle Hospitality OPERA 5 Property Services, attacks may significantly impact additional products (scope change). Successful attacks of this vulnerability can result in unauthorized access to critical data or complete access to all Oracle Hospitality OPERA 5 Property Services accessible data as well as unauthorized update, insert or delete access to some of Oracle Hospitality OPERA 5 Property Services accessible data and unauthorized ability to cause a partial denial of service (partial DOS) of Oracle Hospitality OPERA 5 Property Services. CVSS 3.1 Base Score 7.2 (Confidentiality, Integrity and Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:H/I:L/A:L).

Source: CVE List, as of 30 Oct 2026. About the data.

What to do

Advisories and patches

Oracle Advisory (Vendor advisory)

This summary is based on the CVE record as of 30 Oct 2026. Check the vendor's advisory before you act: affected versions and fixes can change.

Affected products and versions

Versions by product, as listed in the CVE record (1 product)

Oracle Corporation Hospitality OPERA 5 Property Services
Status	Versions
Affected	5.6

Source: CVE List, as of 30 Oct 2026. About the data.

Timeline

Date	Event
18 Apr 2023	CVE record published
16 Sep 2024	CVE record last updated

Known exploited Oracle vulnerabilities

CVE-2026-21962: Oracle HTTP Server and Oracle Weblogic Server Proxy Plug-in Improper Access Control Vulnerability (added 24 Aug 2026)
CVE-2026-46817: Oracle E-Business Suite Improper Privilege Management Vulnerability (added 15 Jul 2026)
CVE-2026-35273: Oracle PeopleSoft Enterprise PeopleTools Missing Authentication for Critical Function Vulnerability (added 12 Jun 2026)
CVE-2024-21182: Oracle WebLogic Server Unspecified Vulnerability (added 1 Jun 2026)
CVE-2025-61757: Oracle Fusion Middleware Missing Authentication for Critical Function Vulnerability (added 21 Nov 2025)