What is the CVSS score of EUVD-2026-62132?

EUVD-2026-62132 has a CVSS 3.1 base score of 5.3 (Medium). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N. EPSS exploitation probability: 0.3%.

Oracle Helidon EUVD-2026-62132

| CVE-2026-73888 MEDIUM

Improper Access Control (CWE-284)

2026-08-18 secalert_us@oracle.com

GHSA-3g7p-ccm9-5x6j

Authentication Bypass Oracle Helidon

5.3

CVSS 3.1 · Vendor: oracle

Severity by source

Vendor (oracle) PRIMARY

5.3 MEDIUM

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

vuln.today AI

5.3 MEDIUM

Network-accessible unauthenticated HTTP bypass yielding read-only partial data exposure; no integrity, availability, or scope-change impact applies.

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

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

Primary rating from Vendor (oracle).

CVSS VectorVendor: oracle

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

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

Low

Integrity

None

Availability

None

Lifecycle Timeline

Analysis Generated

Aug 19, 2026 - 02:48 vuln.today

DescriptionCVE.org

Vulnerability in the Helidon product of Oracle Fusion Middleware (component: Imperative Web Server). The supported version that is affected is 4.5.0. Easily exploitable vulnerability allows unauthenticated attacker with network access via HTTP to compromise Helidon. Successful attacks of this vulnerability can result in unauthorized read access to a subset of Helidon accessible data. CVSS 3.1 Base Score 5.3 (Confidentiality impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N).

AnalysisAI

Unauthorized data exposure in Oracle Helidon 4.5.0's Imperative Web Server enables unauthenticated remote attackers to read a subset of application-accessible data via HTTP, confirmed by Oracle's August 2026 Critical Patch Update. The CVSS vector (AV:N/AC:L/PR:N/UI:N) confirms trivially exploitable, zero-complexity network access requiring no authentication or user interaction. …

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Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata

Access

Identify Helidon 4.5.0 HTTP service

Exploit

Send unauthenticated crafted HTTP request

Execution

Bypass Imperative Web Server access control

Impact

Read subset of application-accessible data

Access

Identify Helidon 4.5.0 HTTP service

Exploit

Send unauthenticated crafted HTTP request

Execution

Bypass Imperative Web Server access control

Impact

Read subset of application-accessible data

Vulnerability AssessmentAI

Exploitation	No special conditions are required for exploitation - the CVSS vector (AV:N/AC:L/PR:N/UI:N) confirms remote unauthenticated exploitation against default configurations of Oracle Helidon 4.5.0's Imperative Web Server over HTTP. … Additional conditions and limiting factors are described in the full assessment.
Risk Assessment	With a CVSS 3.1 score of 5.3 and impact limited to partial confidentiality (C:L/I:N/A:N), this vulnerability is moderate in rated severity, but its trivial exploitability (AV:N/AC:L/PR:N/UI:N) means any network-reachable attacker requires zero preconditions. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in.
Exploit Scenario	An unauthenticated attacker with HTTP network access to a Helidon 4.5.0 service sends a crafted HTTP request to the Imperative Web Server, bypassing authentication controls to retrieve application data. No public exploit code has been identified at time of analysis, but the CVSS metrics (AC:L, PR:N) indicate the barrier to exploitation is minimal - an attacker aware of the vulnerability pattern requires no specialized tooling, only knowledge of the accessible endpoint paths.
Remediation	Organizations running Helidon 4.5.0 should consult Oracle's August 2026 Critical Patch Update at https://www.oracle.com/security-alerts/cspuaug2026.html for the specific patched release version; the exact fix version is not independently confirmed in the available data and should be verified directly with Oracle. … Detailed patch versions, workarounds, and compensating controls in full report.