Vulnerability in the Oracle XML Developers Kit component of Oracle Database Server.

published 2026-09-15 last mo. modified 2026-09-17 last mo. also EUVD-2026-79483

cvss: 7.5; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 0.3%; EPSS 0.3% chance of exploitation in 30 days, percentile 25%
public exploits: 0; none known

Vulnerability in the Oracle XML Developers Kit component of Oracle Database Server. Supported versions that are affected are 19.3-19.32, 21.3-21.23 and 23.4.0-23.26.3. Difficult to exploit vulnerability allows low privileged attacker having XDKC privilege with network access via Oracle Net to compromise Oracle XML Developers Kit. Successful attacks of this vulnerability can result in takeover of Oracle XML Developers Kit. CVSS 3.1 Base Score 7.5 (Confidentiality, Integrity and Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H).

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CISA SSVC

Exploitation: none
Automatable: no
Technical impact: total
Assessed: last mo. (2026-09-17)

Exploit prediction

0.32% chance of exploitation in the next 30 days, higher than 25% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by	version	score	vector
CNA	3.1	7.5	CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

Affected products

Oracle Corporation Oracle Database Server

Classification

Weakness

CWE-284 Improper Access Control

Technology feeds

Oracle Database rss critical rss

References

oracle.com /security-alerts/cspusep2026.html
vendor-advisory

Sources

CVE List CVE-2026-83156
NVD CVE-2026-83156

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