What is the CVSS score of CVE-2026-46983?

CVE-2026-46983 has a CVSS 3.1 base score of 9.8 (Critical). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H. EPSS exploitation probability: 0.5%.

Which versions of Oracle Retail Integration Bus are affected by CVE-2026-46983?

Oracle Retail Integration Bus 16.0.3 is vulnerable to unauthenticated remote complete system takeover (CVSS 9.8 CRITICAL) with no patch currently available.

How to fix or mitigate CVE-2026-46983?

Within 24 hours: Isolate or disable Oracle RIB 16.0.3 instances from public-facing networks; implement network segmentation restricting HTTP access to RIB kernel components; audit existing logs for unauthorized access indicators. Within 7 days: Escalate to Oracle support to confirm patch availability and timeline; document operational impact of RIB downtime versus exploitation risk; implement compensating controls such as Web Application Firewall rules if RIB cannot be immediately decommissioned. Within 30 days: Monitor Oracle Critical Patch Updates for CVE-2026-46983 fix; perform security testing of patch in non-production environment immediately upon release; execute emergency patching within 48 hours of vendor release; conduct forensic analysis if any unauthorized activity detected.

Oracle Retail Integration Bus CVE-2026-46983

EUVD-2026-46472 CRITICAL

Improper Access Control (CWE-284)

2026-07-21 oracle

GHSA-m58g-c9qv-3jfj

Authentication Bypass Oracle Oracle Retail Integration Bus Oracle Corporation

9.8

CVSS 3.1 · Vendor: oracle

Severity by source

Vendor (oracle) PRIMARY

9.8 CRITICAL

AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

vuln.today AI

9.8 CRITICAL

Oracle describes easily exploitable unauthenticated network HTTP attack yielding takeover, so AV:N/AC:L/PR:N/UI:N with full C/I/A impact; no cross-component scope change stated, so S:U.

3.1 AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

4.0 AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

Primary rating from Vendor (oracle).

CVSS VectorVendor: oracle

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Lifecycle Timeline

Analysis Generated

Jul 21, 2026 - 22:13 vuln.today

CVE Published

Jul 21, 2026 - 21:32 cve.org

CRITICAL 9.8

DescriptionCVE.org

Vulnerability in the Oracle Retail Integration Bus product of Oracle Retail Applications (component: RIB Kernal). The supported version that is affected is 16.0.3. Easily exploitable vulnerability allows unauthenticated attacker with network access via HTTP to compromise Oracle Retail Integration Bus. Successful attacks of this vulnerability can result in takeover of Oracle Retail Integration Bus. CVSS 3.1 Base Score 9.8 (Confidentiality, Integrity and Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H).

AnalysisAI

Full takeover of Oracle Retail Integration Bus 16.0.3 (RIB Kernel component) is achievable by an unauthenticated remote attacker over HTTP, per Oracle's July 2026 Critical Patch Update. The CVSS 3.1 base score of 9.8 with high confidentiality, integrity, and availability impact reflects complete compromise of the RIB instance with no user interaction. There is no public exploit identified at time of analysis and it is not listed in CISA KEV, but the trivially low attack complexity makes it a high-priority patch target.

Technical ContextAI

Oracle Retail Integration Bus (RIB) is middleware that orchestrates near-real-time message flow between Oracle Retail applications (e.g., Merchandising, Store Inventory Management, Warehouse Management) using JMS and web-service integration layers, and is typically deployed on Oracle WebLogic Server. The affected 'RIB Kernel' is the core routing and message-processing engine. Oracle does not assign a CWE for this issue (CWE: N/A) and the advisory does not disclose the root-cause class; however, the network/HTTP vector combined with unauthenticated full takeover is consistent with the deserialization, injection, or authentication-bypass classes historically seen in Oracle Fusion Middleware/WebLogic-based products. The Oracle-supplied tag 'Information Disclosure' understates the impact, which the CVSS vector rates as high across all three CIA dimensions.

RemediationAI

Apply the fixes in Oracle's July 2026 Critical Patch Update (https://www.oracle.com/security-alerts/cpujul2026.html) for Oracle Retail Integration Bus 16.0.3; Oracle CPU patches are the vendor-released remediation, though the exact patched build number is not stated in the input and should be taken from the CPU patch matrix - patch status is best described as patch available per vendor advisory. If patching cannot be immediate, restrict network reachability of the RIB HTTP endpoints to trusted integration hosts only via firewall or WebLogic connection filters, place RIB behind a reverse proxy or WAF that enforces authentication, and ensure RIB is never exposed to the internet; the trade-off is that overly tight IP filtering can break legitimate inter-application message flows, so validate integration source addresses before applying. Also review WebLogic/RIB admin console exposure and rotate associated credentials as a precaution.