Unauthorized data access and modification
Published Sep 15, 2026 · Updated Sep 15, 2026
Undisclosed flaw in Oracle Communications Cloud Native Core SEPP 25.2.201 and 26.1.200 allows physically proximate attackers to read and alter data. Oracle has not published the affected SEPP code locus or the operation that mishandles input from the communication segment. Exploitation requires no authentication but requires access to the attached physical communication segment; it exposes all accessible data and permits some updates, insertions, or deletions.
Summary
What happened
Undisclosed flaw in Oracle Communications Cloud Native Core SEPP 25.2.201 and 26.1.200 allows physically proximate attackers to read and alter data. Oracle has not published the affected SEPP code locus or the operation that mishandles input from the communication segment. Exploitation requires no authentication but requires access to the attached physical communication segment; it exposes all accessible data and permits some updates, insertions, or deletions.
The record
- CVE
- CVE-2026-83417
- 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
- adjacent
- Privileges
- unauthenticated
Timeline
How it unfolded
- Sep 15, 2026CVE publishedPublication date reported by the CVE source.
- 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.
- Affected versionversion=25.2.201
- Affected versionversion=26.1.200
What conditions does exploitation require?
What is affected?
Published CVSS scores
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.
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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