CVE-2026-91435
MediumCVSS 6.5Exploitation Probability (EPSS)
Low risk32th percentile - higher than 32% of all known CVEs
Summary
Vulnerability in Oracle Siebel CRM Deployment (component: Server Infrastructure). A low-privileged attacker with network access via HTTP can cause a hang or frequently repeatable crash (complete DOS) of Siebel CRM Deployment.
Risk Assessment
An attacker could render the CRM system unavailable, disrupting critical business processes.
Recommendation
Update Oracle Siebel CRM Deployment to a patched version. Monitor and restrict network access to the CRM HTTP interface.
Other vulnerabilities in Oracle Siebel CRM Deployment
See all- CVE-2026-101453Medium
Vulnerability in Oracle Siebel CRM Deployment (component: Server Infrastructure) affecting versions 17.0-26.9. An easily exploitable flaw allows a high privileged attacker with logon to the infrastructure to take over Siebel CRM Deployment.
- CVE-2026-101448Medium
Vulnerability in Oracle Siebel CRM Deployment (component: Siebel Management Console) affecting versions 17.0-26.9. An easily exploitable flaw allows an unauthenticated attacker with network access via HTTP to gain unauthorized read access to a subset of data.
- CVE-2026-83229Critical
Vulnerability in Oracle Siebel CRM Deployment (component: Siebel Management Console) affecting versions 17.0-26.7. A high privileged authenticated attacker with network access via HTTP can take over the system, and the attack may also impact additional products (scope change).
- CVE-2026-83202Critical
Vulnerability in Oracle Siebel CRM Deployment (component: Server Infrastructure) affecting versions 17.0-26.7. An unauthenticated attacker with network access via HTTP can modify or delete data and gain access to all data accessible in the system.
- CVE-2026-83201Critical
Vulnerability in Oracle Siebel CRM Deployment (component: Server Infrastructure) affecting versions 17.0-26.7. An unauthenticated attacker with network access via HTTP can modify or delete data and gain access to all data accessible in the system.
- CVE-2026-83196Critical
Vulnerability in Oracle Siebel CRM Deployment (component: Server Infrastructure) affecting versions 17.0-26.7. A high privileged authenticated attacker with network access via HTTP can take over the system, and the attack may also impact additional products (scope change).
- CVE-2026-91448High
Vulnerability in Oracle Siebel CRM Deployment (component: Server Infrastructure) affecting versions 17.0-26.9. An unauthenticated attacker with network access via HTTP can gain unauthorized access to critical data or complete access to all Siebel CRM Deployment accessible data.
- CVE-2026-91447High
Vulnerability in Oracle Siebel CRM Deployment (component: Server Infrastructure) affecting versions 17.0-26.9. An unauthenticated attacker with network access via HTTP can gain unauthorized access to critical data or complete access to all Siebel CRM Deployment accessible data.
- CVE-2026-91446Medium
Vulnerability in Oracle Siebel CRM Deployment (component: Server Infrastructure). A high-privileged attacker with logon to the infrastructure where Siebel CRM Deployment executes can take over the product.
- CVE-2026-91444Medium
Vulnerability in Oracle Siebel CRM Deployment (component: Server Infrastructure). A high-privileged attacker with logon to the infrastructure where Siebel CRM Deployment executes can take over the product.
Original NVD description (English source)
Vulnerability in the Siebel CRM Deployment product of Oracle Siebel CRM (component: Server Infrastructure). Supported versions that are affected are 17.0-26.9. Easily exploitable vulnerability allows low privileged attacker with network access via HTTP to compromise Siebel CRM Deployment. Successful attacks of this vulnerability can result in unauthorized ability to cause a hang or frequently repeatable crash (complete DOS) of Siebel CRM Deployment. CVSS 3.1 Base Score 6.5 (Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H).
Vulnerability data from NVD (NIST) · CISA KEV · EPSS