How severe is CVE-2026-21967?

High severity. CVSS v3 base score is 8.6 out of 10.

Vulnerability in Oracle Hospitality_opera_5

CVE-2026-21967

Vulnerability in the Oracle Hospitality OPERA 5 product of Oracle Hospitality Applications (component: Opera Servlet). Supported versions that are affected are 5.6.19.23, 5.6.25.17, 5.6.26.10 and 5.6.27.4. Easily exploitable vulnerabilit…

EPSS: 0.003 (18.4th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 8.6 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:L.

Affected products

Oracle Hospitality_opera_5 — versions 5.6.19.23, 5.6.25.17, 5.6.26.10
Oracle Corporation Hospitality Opera 5 — versions 5.6.19.23, 5.6.25.17, 5.6.26.10

References

secalert_us@oracle.com (vendor-advisory, Vendor Advisory)

Frequently asked questions

What is CVE-2026-21967?: CVE-2026-21967 is a high-severity vulnerability in Oracle Hospitality_opera_5. CVSS score: 8.6/10. Published 2026-01-20.
How severe is CVE-2026-21967?: High severity. CVSS v3 base score is 8.6 out of 10.