Dashboard / CVE-2026-21999

CVE-2026-21999

MEDIUM
MEDIUM Priority: 0.01 BB Relevance: 51/100
Published: 2026-04-21 Modified: 2026-10-26 First seen: 2026-10-29 Status: active

Attack Surface

Network No Auth Conf. Impact

CVSS Vector Breakdown

AV: Network
AC: High
PR: None
UI: Required
S: Unchanged
C: High
I: None
A: None

Description

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).

Weakness Classification (1)

Affected Software (1)

VendorProductVersion
oracle xml_database 23.4 – 23.26.1

References & Advisories (1)

Bug Bounty Relevance

51 / 100
✓ Network accessible
✓ No authentication

CVSS Score

5.3 / 10.0 v3.1
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:N/A:N

EPSS — Exploitation Probability

0.24%
Raw Score 0.002430
Percentile 15.5%
Date 2026-10-29

EPSS Trend

2026-10-29
0.00243
2026-10-28
0.00243

Intelligence Sources

nvd ref →

External Links