MEDIUMCVSS v3.1 5.9Vulnerability
CVE-2026-91421
Vulnerability in the Siebel CRM Deployment product of Oracle Siebel CRM (component: Server Infrastructure). Supported versions that are affected are 17.0-26.9. Difficult to exploit vulnerability allows unauthenticated 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 5.9 (Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H).
Properties
- Severity
- MEDIUM
- Nvd fetched at
- 2026-10-22T22:14:18.200859+00:00
- Epss score
- 0.00367
- Cvss score
- 5.9
- Cvss severity
- MEDIUM
- Retrieved at
- 2026-10-22T22:17:36+00:00
- Score
- 5.9
- Last source
- FIRST EPSS
- Cvss version
- 3.1
- Cve id
- CVE-2026-91421
- Cvss vector
- CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
- First seen by Signal
- 2026-10-21T22:34:38+00:00
- Vector
- CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
- Published at
- 2026-10-20T22:20:45.527
- Last modified
- 2026-10-21T18:44:40.020
- Epss percentile
- 0.2937
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