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Siebel Crm EUVDEUVD-2026-79405

| CVE-2026-83077 MEDIUM
Improper Access Control (CWE-284)
2026-09-15 secalert_us@oracle.com GHSA-9q98-c2hp-2p33
Authentication Bypass Oracle Siebel Crm
6.4
CVSS 3.1 · Vendor: oracle
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Vulnerability Assessment

Weakness
CWE
CWE-284
OWASP Top 10:2025
A01:2025 - Broken Access Control
ASVS 5.0
V8 - Authorization Access control enforcement
MITRE ATT&CK

1 technique across 1 tactic: Defense Evasion

The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up.

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This Month Plan within 30 days. Why: MEDIUM severity (CVSS 4.0-6.9).
No patch listed yet 0.3% exploitation probability (EPSS)

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AnalysisAIv1 – Sep 15, 2026

Oracle Siebel CRM Cloud Applications (Siebel Cloud Manager component), versions 22.3 through 26.7, permits low-privileged authenticated users with HTTP network access to reach functionality they should not control, enabling unauthorized read and modification of data and affecting systems beyond the vulnerable component (scope change). The flaw is rated CVSS 6.4 (AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N), reflecting an easily automated but credential-gated attack with limited confidentiality and integrity impact. No public exploit code or CISA KEV entry is identified at time of analysis, and no CWE classification was assigned by the reporting source.

Affected VersionsENISA

Siebel CRM Cloud Applications 22.3 ≤26.7

Affected Packages

euvd siebel_crm_cloud_applications no fix

Source: OSV (Open Source Vulnerabilities)

Affects your stack

Affects 1 package in euvd

Checking this CVE against your own stacks and servers is part of the Basic plan and up.

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  • Exploit and PoC references, threat intelligence from 22 sources
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Severity by source

Vendor (oracle) PRIMARY 6.4 MEDIUM
AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N

Primary rating from Vendor (oracle) · only source for this CVE.

CVSS VectorVendor: oracle

Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Changed
Confidentiality
Low
Integrity
Low
Availability
None

DescriptionCVE.org

Vulnerability in the Siebel CRM Cloud Applications product of Oracle Siebel CRM (component: Siebel Cloud Manager). Supported versions that are affected are 22.3-26.7. Easily exploitable vulnerability allows low privileged attacker with network access via HTTP to compromise Siebel CRM Cloud Applications. While the vulnerability is in Siebel CRM Cloud Applications, attacks may significantly impact additional products (scope change). Successful attacks of this vulnerability can result in unauthorized update, insert or delete access to some of Siebel CRM Cloud Applications accessible data as well as unauthorized read access to a subset of Siebel CRM Cloud Applications accessible data. CVSS 3.1 Base Score 6.4 (Confidentiality and Integrity impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N).

Threat Intelligence Overview

EPSS Score
0.3%
Top 83% exploitable
Data Quality
4 sources
Confidence: Medium
EUVD NVD CVE.org EPSS

How this decision was reached

The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.

SignalValue
Severity MEDIUM
CISA KEV No
Public POC No
EPSS 0.3%
Patch available No
Active threat No
Deciding rule
MEDIUM severity (CVSS 4.0-6.9)
What every action level means
Emergency Immediate action required. Criteria: CRITICAL + in CISA KEV (actively exploited) without patch, OR CRITICAL + EPSS > 30% without patch, OR CRITICAL + active threat signals without patch.
Act Now Prioritize within 24-48h. Criteria: in KEV with patch available, OR CRITICAL + public POC, OR HIGH + EPSS > 10%, OR CRITICAL + active threat, OR any CRITICAL severity.
This Week Schedule remediation this week. Criteria: HIGH severity (CVSS 7.0-8.9). Patch within normal change window.
This Month Plan within 30 days. Criteria: MEDIUM severity (CVSS 4.0-6.9), lower exploitation probability. Include in regular patch cycle.
Monitor Track and reassess. Criteria: LOW severity (CVSS 0.1-3.9), minimal exploitation risk. No immediate action needed.

SSVC AssessmentENISA

SSVC Decision· derived
Scheduled
Exploitation· derived
None
System Exposure· derived
Open
Automatable· derived
No
Human Impact· derived
Medium

Priority Score

32
Low Medium High Critical
KEV: 0
EPSS: 0
CVSS: +32
PoC: 0
Weaponized: 0
Threat intel: 0
Gov advisory: 0

Attack Technique

Authentication Bypass CRITICAL

Authentication bypass attacks exploit flaws in the verification mechanisms that control access to systems and applications.

More in Siebel Crm

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CVE-2026-61317 CRITICAL
9.9 Aug 18

Privilege-based takeover of Oracle Siebel CRM Cloud Applications (versions 22.3 through 26.6) is possible via the Siebel
CVE-2026-62588 CRITICAL
9.9 Aug 18

Full compromise of Oracle Siebel CRM Integration (Open Integration component) is achievable by a low-privileged, network
CVE-2026-62512 CRITICAL
9.9 Aug 18

Privilege escalation to full takeover in Oracle Siebel CRM Cloud Applications (Siebel Cloud Manager component, versions

CVE-2026-62452 CRITICAL
9.9 Aug 18

Unauthenticated remote compromise of Oracle Siebel CRM Cloud Applications (versions 22.3 through 26.6) is possible throu
CVE-2026-61318 CRITICAL
9.8 Aug 18

Full application takeover in Oracle Siebel CRM Cloud Applications (Siebel Cloud Manager component), versions 22.3 throug
CVE-2026-62592 CRITICAL
9.8 Aug 18

Full compromise of Oracle Siebel CRM Integration (Open Integration component) is possible by an unauthenticated remote a
CVE-2026-62585 CRITICAL
9.8 Aug 18

Remote takeover of Oracle Siebel CRM Administration is possible via its Data Archival component, where an unauthenticate
CVE-2026-83202 CRITICAL
9.1 Sep 15

Authentication bypass in the Server Infrastructure component of Oracle Siebel CRM Deployment (supported versions 17.0 th
CVE-2026-83201 CRITICAL
9.1 Sep 15

Authentication bypass in the Server Infrastructure component of Oracle Siebel CRM Deployment (versions 17.0 through 26.7
CVE-2026-83154 CRITICAL
9.1 Sep 15

Unauthenticated attackers with network reachability to the Siebel CRM Open UI SOAP interface can bypass authentication i
CVE-2026-70949 HIGH
8.8 Aug 18

Full system takeover in Oracle Siebel CRM Deployment's Server Infrastructure component is achievable by any low-privileg
CVE-2026-61341 HIGH
8.8 Aug 18

Full application takeover in Oracle Siebel CRM Cloud Applications (versions 22.3-26.6) is achievable by any low-privileg

Same weakness CWE-284 – Improper Access Control

View all
CVE-2015-3306 CRITICAL POC
10.0
CVE-2012-4681 CRITICAL POC
9.8
CVE-2011-3544 CRITICAL POC
9.8
CVE-2012-1723 CRITICAL POC
9.8
CVE-2012-5076 CRITICAL POC
9.8
CVE-2014-3120 HIGH POC
8.1
CVE-2013-2423 LOW POC
3.7
CVE-2016-3427 CRITICAL
9.8

Same technique Authentication Bypass

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CVE-2023-22515 CRITICAL POC
9.8
CVE-2013-2465 CRITICAL POC
9.8
CVE-2022-40684 CRITICAL POC
9.8
CVE-2025-61882 CRITICAL POC
9.8
CVE-2024-0012 CRITICAL POC
9.3

References

Advisories & patches
ADVISORY https://nvd.nist.gov/vuln/detail/CVE-2026-83077 REF https://www.oracle.com/security-alerts/cspusep2026.html

Search Externally

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