Unauthenticated remote HTTP exploitability against Oracle Utilities product used by energy providers; could disclose/modify critical utility data and disrupt operations.
CVE-2026-83343
Unauthenticated HTTP access can compromise Oracle Utilities Network Management System
Is CVE-2026-83343 being exploited?
Not confirmed. CVE-2026-83343 does not appear in CISA's Known Exploited Vulnerabilities catalog, which records only exploitation that has been observed and reported publicly. That is evidence of absence of a report, not evidence the flaw is unattacked. EPSS currently estimates a 0.35% probability of exploitation in the next 30 days.
How severe is CVE-2026-83343?
CVE-2026-83343 is rated High with a CVSS score of 8.2. Severity describes how bad exploitation would be, not how likely it is: pair it with exploitation evidence before deciding what to patch first.
Is there a patch for CVE-2026-83343?
Yes. A fix has been recorded for CVE-2026-83343. The vendor advisory is the authority on the exact fixed version — apply it from there rather than from a summary.
What does CVE-2026-83343 affect?
CVE-2026-83343 affects Oracle Utilities Network Management System 2.5.0.2.0-2.5.0.2.13, Oracle Utilities Network Management System 2.6.0.1.0-2.6.0.12B, Oracle Utilities Network Management System 2.6.0.2.0-2.6.0.2.10A, Oracle Utilities Network Management System 25.12.0.0.0-25.12.0.0.3. Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2026-83343?
Apply Oracle patch immediately; restrict/block HTTP access; isolate affected systems and audit logs.
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
Remote unauthenticated HTTP access allows read of sensitive data and unauthorized insert/update/delete of Oracle Utilities NMS data.
Immediate action required
- affected>= 2.5.0.2.0 and <= 2.5.0.2.13
- affected>= 2.6.0.1.0 and <= 2.6.0.12B
- affected>= 2.6.0.2.0 and <= 2.6.0.2.10A
- affected>= 25.12.0.0.0 and <= 25.12.0.0.3
As published in the CVE Program record. A version outside these ranges is not a statement that it is unaffected — vendors sometimes understate a range, and distribution-backported builds carry upstream numbers that do not reflect what was patched into them.