CVE-2026-83418Network attack vector

Authenticated critical data access and modification

Published Sep 15, 2026 · Updated Sep 15, 2026

Data compromise in Oracle Cloud Native Core SEPP 25.2.201 and 26.1.200 allows remote authenticated users to read or modify critical data via HTTP. Oracle has not disclosed the flawed SEPP operation or how crafted HTTP input causes unauthorized reads, creation, deletion, or modification of accessible data. Exploitation requires low-privileged credentials and high-complexity network access; availability impact is not reported.

CVSS severity8.2
High
EPSS probability0.31%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Data compromise in Oracle Cloud Native Core SEPP 25.2.201 and 26.1.200 allows remote authenticated users to read or modify critical data via HTTP. Oracle has not disclosed the flawed SEPP operation or how crafted HTTP input causes unauthorized reads, creation, deletion, or modification of accessible data. Exploitation requires low-privileged credentials and high-complexity network access; availability impact is not reported.

The record

CVE
CVE-2026-83418
Published
Sep 15, 2026
Updated
Sep 15, 2026
Vendor
Oracle Corporation
Product
Oracle Communications Cloud Native Core Security Edge Protection Proxy
Classifications
Unavailable
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Sep 15, 2026CVE publishedPublication date reported by the CVE source.
  2. Sep 15, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=25.2.201
  2. Affected versionversion=26.1.200

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Oracle Corporation · Oracle Communications Cloud Native Core Security Edge Protection Proxyversion=25.2.201; version=26.1.200

Published CVSS scores

8.2Oracle CorporationCVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

No sourced classifications are available.

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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