# CVE-2026-83343: Oracle Utilities Network Management System unauthenticated access vulnerability

Source: https://junglewise.ai/threats/cve-2026-83343-oracle-utilities-network-management-system-unauthenticated-access  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-09-15. Updated: 2026-09-26  
License: CC BY 4.0 with a link back

CVE-2026-83343 · Severity: high · CVSS 8.2 · Published 2026-09-15

Oracle Utilities Network Management System is a critical component used by utilities companies to manage network infrastructure and operations. This vulnerability allows an unauthenticated attacker to remotely access the system over the network, potentially exposing sensitive operational data, customer information, and enabling unauthorized modifications to system records—creating significant business disruption and regulatory compliance risks for utility operators.

Technologies: [Oracle Utilities Network Management System](https://junglewise.ai/threats/technologies/utilities-network-management-system). Vendors: [Oracle](https://junglewise.ai/threats/vendors/oracle).

## Quick answers

**Is CVE-2026-83343 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-83343 being exploited in the wild.

**How severe is CVE-2026-83343?** High severity, with a CVSS score of 8.2, published 15 September 2026.

**Which products and versions are affected?** Oracle Utilities Network Management System 2.5.0.2.0-2.5.0.2.13, 2.6.0.1.0-2.6.0.12B, 2.6.0.2.0-2.6.0.2.10A, 25.12.0.0.0-25.12.0.0.3.

**Is there a fix for CVE-2026-83343?** No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.

**How is CVE-2026-83343 attacked?** It is attacked over the network.

**Am I affected by CVE-2026-83343?** Check whether you run Oracle Utilities Network Management System at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## Technical details

The vulnerability is an easily exploitable, unauthenticated remote access flaw in Oracle Utilities Network Management System accessible via HTTP (network attack vector). No authentication, user interaction, or complex configuration is required for exploitation. Successful attacks grant unauthorized read access to critical data and modification (update/insert/delete) capabilities over a subset of accessible data. The flaw resides in the System Wide component. Affected versions include 2.5.0.2.0–2.5.0.2.13, 2.6.0.1.0–2.6.0.12B, 2.6.0.2.0–2.6.0.2.10A, and 25.12.0.0.0–25.12.0.0.3; patched versions should be available from Oracle.

## Affected products

- Oracle Utilities Network Management System 2.5.0.2.0-2.5.0.2.13, 2.6.0.1.0-2.6.0.12B, 2.6.0.2.0-2.6.0.2.10A, 25.12.0.0.0-25.12.0.0.3

## Timeline

- 2026-09-15: disclosed
- other: Reported not exploited in the wild as of publication date

## References

- [https://www.oracle.com/security-alerts/cspusep2026.html](https://www.oracle.com/security-alerts/cspusep2026.html)

## Related threats

- [Oracle Utilities Network Management System information disclosure](https://junglewise.ai/threats/cve-2026-101605-vulnerability-in-the-oracle-utilities-network-management-system)
- [Oracle Utilities Network Management System information disclosure](https://junglewise.ai/threats/cve-2026-101589-vulnerability-in-the-oracle-utilities-network-management-system)
- [Oracle Utilities Network Management System local privilege escalation](https://junglewise.ai/threats/cve-2026-101517-vulnerability-in-the-oracle-utilities-network-management-system)
- [Oracle Utilities Network Management System privilege escalation](https://junglewise.ai/threats/cve-2026-83342-oracle-utilities-network-management-system-privilege-escalation)
- [Oracle Utilities Network Management System data manipulation in Mobile component](https://junglewise.ai/threats/cve-2026-46981-oracle-utilities-network-management-system-data-manipulation-in)