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01 Record

CVE-2026-83156

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

HighPUBLISHEDCNA: oracle
CNA base score7.5 CVSS v3.xCVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

02 Description

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

03 Exploitation and scoring

Exploitation
Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.
SSVC decision
  • ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
  • AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
  • Technical ImpacttotalSuccessful exploitation gives total control of the vulnerable component.
CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.
EPSS probability
0.32% probability of exploitation activity in the next 30 days.
EPSS percentile
Equal to or higher than the score of 25.0% of scored records. A rank, not a probability.
NVD base score
7.5 (CVSS v3.x), scored by the NVD independently of the CNA.
NVD CVSS vector
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
NVD analysis status
Deferred. NVD last modified this record on 2026-09-17.
Red Hat severity
No Red Hat rating. Red Hat rates the CVEs that affect its products.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

04 Metadata

Published
2026-09-15 20:03Z1 MO AGO
Last updated
2026-09-17 15:17Z1 MO AGO
Reserved
2026-08-31
Assigning CNA
oracle
Record state
PUBLISHED
Severity
High (CVSS 7.5)
CNA CVSS vector
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
Weaknesses
  • CWE-284Improper Access ControlPillar
Data version
5.2
Document digest
afc4802a9cad42c5abd33e250c449541bfbfbff0a3f7a04d92ff59e8fdefb389

05 Affected products

VendorProductVersionsPlatforms
Oracle CorporationOracle Database Server19.3 to 19.32, 21.3 to 21.23, 23.4.0 to 23.26.3—

06 References