High severity · published Sep 15, 2026
CVE-2026-83155
Vulnerability in the Siebel CRM Deployment product of Oracle Siebel CRM (component: Server Infrastructure)
7.3
CVSS
0.2%
EPSS
No
On KEV
Description
Vulnerability in the Siebel CRM Deployment product of Oracle Siebel CRM (component: Server Infrastructure). Supported versions that are affected are 17.0-26.7. Easily exploitable vulnerability allows low privileged attacker with access to the physical communication segment attached to the hardware where the Siebel CRM Deployment executes to compromise Siebel CRM Deployment. Successful attacks of this vulnerability can result in unauthorized access to critical data or complete access to all Siebel CRM Deployment accessible data and unauthorized ability to cause a hang or frequently repeatable crash (complete DOS) of Siebel CRM Deployment. CVSS 3.1 Base Score 7.3 (Confidentiality and Availability impacts). CVSS Vector: (CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H).
CVSS vector
CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
Attack vector
Adjacent
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.2% · higher than 14% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
SC
Siebel CRM Deployment · Oracle Corporation
17.0 through 26.7 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-83155
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-83155
www.oracle.com
https://www.oracle.com/security-alerts/cspusep2026.html
More from Siebel CRM Deployment
9.1
CVE-2026-83229
Vulnerability in the Siebel CRM Deployment product of Oracle Siebel CRM (component: Siebel Management Console)
9.1
CVE-2026-83202
Vulnerability in the Siebel CRM Deployment product of Oracle Siebel CRM (component: Server Infrastructure)
9.1
CVE-2026-83201
Vulnerability in the Siebel CRM Deployment product of Oracle Siebel CRM (component: Server Infrastructure)
9.1
CVE-2026-83196
Vulnerability in the Siebel CRM Deployment product of Oracle Siebel CRM (component: Server Infrastructure)
8.8
CVE-2026-91442
Vulnerability in the Siebel CRM Deployment product of Oracle Siebel CRM (component: Server Infrastructure)
