What is the CVSS score of CVE-2026-73923?

CVE-2026-73923 has a CVSS 3.1 base score of 3.7 (Low). CVSS vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N. EPSS exploitation probability: 0.2%.

Oracle Helidon CVE-2026-73923

EUVD-2026-62167 LOW

Improper Access Control (CWE-284)

2026-08-18 secalert_us@oracle.com

GHSA-g32v-r4v6-qp65

Authentication Bypass Oracle Helidon

3.7

CVSS 3.1 · Vendor: oracle

Severity by source

Vendor (oracle) PRIMARY

3.7 LOW

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

vuln.today AI

3.7 LOW

Network-reachable HTTP endpoint with no auth required; AC:H reflects non-trivial exploitation conditions per Oracle's own 'difficult to exploit' characterization; impact is integrity-only and limited.

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

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

Primary rating from Vendor (oracle).

CVSS VectorVendor: oracle

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

Attack Vector

Network

Attack Complexity

High

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

Low

Availability

None

Lifecycle Timeline

Analysis Generated

Aug 19, 2026 - 02:40 vuln.today

DescriptionCVE.org

Vulnerability in the Helidon product of Oracle Fusion Middleware (component: Imperative Web Server). The supported version that is affected is 1.4.20. Difficult to exploit vulnerability allows unauthenticated attacker with network access via HTTP to compromise Helidon. Successful attacks of this vulnerability can result in unauthorized update, insert or delete access to some of Helidon accessible data. CVSS 3.1 Base Score 3.7 (Integrity impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N).

AnalysisAI

Integrity compromise in Oracle Helidon 1.4.20's Imperative Web Server component enables unauthenticated remote attackers to perform limited unauthorized data modifications via HTTP under high-complexity conditions. The vulnerability, tagged as an authentication bypass, allows circumvention of access controls to execute unauthorized update, insert, or delete operations on Helidon-accessible data without requiring credentials or user interaction. …

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Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata

Access

Identify internet-facing Helidon 1.4.20 HTTP endpoint

Exploit

Craft HTTP request satisfying high-complexity conditions

Execution

Trigger authentication bypass in Imperative Web Server

Impact

Perform unauthorized data insert, update, or delete

Access

Identify internet-facing Helidon 1.4.20 HTTP endpoint

Exploit

Craft HTTP request satisfying high-complexity conditions

Execution

Trigger authentication bypass in Imperative Web Server

Impact

Perform unauthorized data insert, update, or delete

Vulnerability AssessmentAI

Exploitation	The vulnerability is present only in Helidon version 1.4.20 running the Imperative Web Server component with its HTTP endpoint network-accessible. … Additional conditions and limiting factors are described in the full assessment.
Risk Assessment	Real-world risk is low. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in.
Exploit Scenario	A remote, unauthenticated attacker targeting an internet-facing Helidon 1.4.20 Imperative Web Server constructs crafted HTTP requests and satisfies the high-complexity preconditions - potentially specific request sequencing or timing - to trigger the authentication bypass, then performs unauthorized data modification operations against application-accessible data stores. No public proof-of-concept is known, making opportunistic or automated exploitation unlikely. …
Remediation	Oracle has addressed this vulnerability through its Critical Security Patch Update for August 2026; organizations should consult the advisory at https://www.oracle.com/security-alerts/cspuaug2026.html to identify and apply the recommended patch. … Detailed patch versions, workarounds, and compensating controls in full report.