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Oracle JDeveloper CVE-2026-83423

| EUVDEUVD-2026-79723 HIGH
2026-09-15 secalert_us@oracle.com GHSA-2xcq-g575-88vm
8.8
CVSS 3.1 · NVD
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Severity by source

NVD PRIMARY
8.8 HIGH
AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
vuln.today AI
8.8 HIGH

Network-reachable HTTP service requiring an existing low-privilege account, so PR:L; no user interaction and full C/I/A impact within the product.

3.1 AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
4.0 AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

Primary rating from NVD.

CVSS VectorNVD

Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

Lifecycle Timeline

2
Analysis Generated
Sep 15, 2026 - 21:12 vuln.today
CVE Published
Sep 15, 2026 - 20:18 nvd
HIGH 8.8

DescriptionNVD

Vulnerability in the Oracle JDeveloper product of Oracle Fusion Middleware (component: Security Framework). 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 JDeveloper. Successful attacks of this vulnerability can result in takeover of Oracle JDeveloper. 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).

AnalysisAI

Oracle JDeveloper 12.2.1.4.0 and 14.1.2.0.0 contain a flaw in the Fusion Middleware Security Framework component that lets a low-privileged attacker who can reach the IDE over HTTP achieve a full takeover of the product, with high confidentiality, integrity, and availability impact. Oracle rates it 8.8 (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H), so exploitation needs a valid low-privilege account but no user interaction or elevated privilege. …

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Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata

Access
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Delivery
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Exploit
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Execution
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Impact
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Vulnerability AssessmentAI

Exploitation Requires (1) network reachability to an Oracle JDeveloper HTTP service - i.e. … Additional conditions and limiting factors are described in the full assessment.
Risk Assessment The CVSS vector is unambiguous - AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H - describing a remotely reachable, low-complexity, unauthenticated-at-the-network-layer but low-privilege-authenticated attack that yields complete loss of confidentiality, integrity, and availability of the JDeveloper instance. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in.
Exploit Scenario Full exploit scenario with step-by-step reproduction available after sign-in.
Remediation Apply the Oracle Critical Patch Update remediation published for this CVE in the Oracle security alert at https://www.oracle.com/security-alerts/cspusep2026.html - the advisory is the authoritative source for the exact patched build numbers, which were not included in the input data; no vendor-released patch version is confirmed here. … Detailed patch versions, workarounds, and compensating controls in full report.

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CVE-2026-83423 vulnerability details – vuln.today

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