Vulnerability details

CVE-2026-87359

Oracle Service Bus

CVSS 3.1

8.8High

Official description

Vulnerability in the Oracle Service Bus product of Oracle Fusion Middleware (component: Core). Supported versions that are affected are 12.2.1.4.0 and 14.1.2.0.0. Easily exploitable vulnerability allows low privileged attacker with network access via HTTP to compromise Oracle Service Bus. Successful attacks of this vulnerability can result in takeover of Oracle Service Bus. CVSS 3.1 Base Score 8.8 (Confidentiality, Integrity and Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H).

CVSS scores

Score	Version	Source	Vector
8.8High	3.1	CVEProject cvelistV5 (CNA) (oracle)	`CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H`

Affected products

Vendor	Product	Versions	Source
Oracle Corporation	Oracle Service Bus	12.2.1.4.0	CVEProject cvelistV5 (CNA)
Oracle Corporation	Oracle Service Bus	14.1.2.0.0	CVEProject cvelistV5 (CNA)

References and advisories

https://www.oracle.com/security-alerts/cpuoct2026.html vendor-advisory

Kolun on Telegram @kolunsec Exploited CVEs, key news and a daily digest Alerts for this product's next CVEsFollow the product to get new vulnerabilities on Telegram.

Details

Published: 2026-10-21
Last updated: 2026-10-28
State: Published
Assigner (CNA): oracle

Exploit prediction (EPSS)

0.47%

Probability of exploitation in 30 days

41%

Percentile (among all CVEs)

SSVC assessment (CISA)

Automatable: No
Exploitation: None
Technical impact: Total

Weaknesses (CWE)

CWE-200
Exposure of Sensitive Information to an Unauthorized Actor