VDB
CVE-2026-21999
CVE-2026-21999
PUBLISHED
CVSS 5.300000190734863 MEDIUM
Vulnerability in the XML Database component of Oracle Database Server. Supported versions that are affected are 23.4.0-23.26.1. Difficult to exploit vulnerability allows unauthenticated attacker with network access via HTTPS to compromise XML Database. Successful attacks require human interaction from a person other than the attacker. Successful attacks of this vulnerability can result in unauthorized access to critical data or complete access to all XML Database accessible data. CVSS 3.1 Base Score 5.3 (Confidentiality impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:N/A:N).
EPSS 0.04% · 11.3th percentile
Risk Scores
CVSS 3.1
5.300000190734863
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:N/A:N
EPSS Score
0.04%
11.3th percentile
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| oracle | database_-_xml_database | 23.4.0 |
| Oracle Corporation | Oracle Database Server | 23.4.0 |
Timeline
- Apr 21, 2026 CVE Published
- Apr 22, 2026 Security Advisory
- Apr 22, 2026 CVE Updated
- May 18, 2026 EPSS Score
- May 19, 2026 EPSS Score
- May 20, 2026 EPSS Score
- May 21, 2026 EPSS Score
- May 22, 2026 EPSS Score
- May 23, 2026 EPSS Score
- May 24, 2026 EPSS Score
- May 25, 2026 EPSS Score
- May 26, 2026 EPSS Score
References
- Oracle Advisory vendor-advisory
- https://nvd.nist.gov/vuln/detail/CVE-2026-21999 advisory