CVE-2026-83201
CRITICAL · 9.1Fresh advisory, high CVSS, but no PoC, KEV listing, or confirmed exploitation yet observed.
What: Unauthenticated remote code execution and data manipulation in Oracle Siebel CRM Deployment versions 17.0–26.7 via HTTP; CVSS 9.1 CRITICAL.
Why it matters: Published yesterday with CRITICAL severity and zero authentication required. Not yet KEV-listed, but high CVSS and network-accessible attack surface suggest rapid triage priority for Oracle Siebel customers. No public PoC or in-the-wild reports visible in social chatter, but vendors typically patch urgently at this severity level.
Where it's seen: Social posts flagging the NVD entry and CVSS score; minimal technical detail or exploitation discussion; primarily awareness amplification rather than hands-on researcher engagement.
RISK: CRITICAL — Unauthenticated network access, high integrity/confidentiality impact, broad version range affected.
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 unauthenticated attacker with network access via HTTP to compromise Siebel CRM Deployment. Successful attacks of this vulnerability can result in unauthorized creation, deletion or modification access to critical data or all Siebel CRM Deployment accessible data as well as unauthorized access to critical data or complete access to all Siebel CRM Deployment accessible data. CVSS 3.1 Base Score 9.1 (Confidentiality and Integrity impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N).
CVSS 3.1 breakdown
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N- Attack vector
- Network
- Complexity
- Low
- Privileges required
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- None