---
title: "CVE-2026-83155: Oracle Siebel CRM Deployment - Broken Access Control"
description: "Oracle Siebel CRM Deployment 17.0-26.7 contains an unauthorized access and denial of service vulnerability caused by insufficient protection of physical communication segment, letting low privileged attackers with physical network access compromise data confidentiality and availability, exploit requires physical network access."
url: https://panop.io/threat-heartbeat/CVE-2026-83155/
---

# CVE-2026-83155 Oracle Siebel CRM Deployment - Broken Access Control

Oracle Siebel CRM Deployment 17.0-26.7 contains an unauthorized access and denial of service vulnerability caused by insufficient protection of physical communication segment, letting low privileged attackers with physical network access compromise data confidentiality and availability, exploit requires physical network access.

CVSS base score 7.3 /10

High

CISA KEV

Not listed

Public exploit

None known

EPSS

0.23% chance of exploitation in 30 days

[View the NVD record ↗](https://nvd.nist.gov/vuln/detail/CVE-2026-83155)

## Details

Type

Broken Access Control

Impact

Information Disclosure, Denial Of Service

CVSS vector

CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H

Published

15 September 2026

Updated

15 October 2026

Weakness

[CWE-284](https://cwe.mitre.org/data/definitions/284.html)

## Vendor fix

Update to the latest available version beyond 26.7.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

## References

- [https://nvd.nist.gov/vuln/detail/CVE-2026-83155](https://nvd.nist.gov/vuln/detail/CVE-2026-83155)
- [https://www.oracle.com/security-alerts/cspusep2026.html](https://www.oracle.com/security-alerts/cspusep2026.html)

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## What this record can't tell you

- Whether you run the affected software, and where
- Whether an attacker can actually reach and exploit it
- The misconfigurations that never get a CVE number
- What it would cost the business, ranked into what to fix first

Panop answers these inside your environment, for this CVE and every other finding.

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