Quick answers
- Is CVE-2026-83211 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-83211 being exploited in the wild.
- How severe is CVE-2026-83211?
- High severity, with a CVSS score of 7.8, published 15 September 2026.
- Which products and versions are affected?
- Oracle Siebel CRM 17.0–26.7.
- Is there a fix for CVE-2026-83211?
- No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
- How is CVE-2026-83211 attacked?
- It is attacked with local access, in a hosted service.
- Am I affected by CVE-2026-83211?
- Check whether you run Oracle Siebel CRM at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.
Technical details
This is a privilege escalation vulnerability in the Server Infrastructure component of Oracle Siebel CRM Deployment (versions 17.0–26.7). The vulnerability requires local access and low-level privileges but allows an authenticated attacker to escalate to full system compromise without user interaction. The attack vector is local with low complexity, and successful exploitation results in complete takeover of the Siebel CRM Deployment instance, affecting confidentiality, integrity, and availability. Patches are expected to be available from Oracle; users should consult official security advisories for remediation guidance.
Affected products
- Oracle Siebel CRM 17.0–26.7
Timeline
- 2026-09-15: disclosed