# CVE-2026-91208: Oracle Solaris denial of service in Services component

Source: https://junglewise.ai/threats/cve-2026-91208-vulnerability-in-the-oracle-solaris-product-of-oracle-systems  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-10-20. Updated: 2026-10-20  
License: CC BY 4.0 with a link back

CVE-2026-91208 · Severity: medium · CVSS 5.1 · Published 2026-10-20

Oracle Solaris is a Unix-based operating system that powers enterprise servers and infrastructure. An unauthenticated attacker with local access to the system can trigger a crash or hang that renders the operating system unavailable, disrupting business operations and requiring manual recovery.

Technologies: [Oracle Solaris](https://junglewise.ai/threats/technologies/solaris). Vendors: [Oracle](https://junglewise.ai/threats/vendors/oracle).

## Quick answers

**Is CVE-2026-91208 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-91208 being exploited in the wild.

**How severe is CVE-2026-91208?** Medium severity, with a CVSS score of 5.1, published 20 October 2026.

**Which products and versions are affected?** Oracle Solaris 11.4.

**Is there a fix for CVE-2026-91208?** 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-2026-91208 attacked?** It is attacked with local access, in an operating system.

**Am I affected by CVE-2026-91208?** Check whether you run Oracle Solaris 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

A difficult-to-exploit local denial-of-service vulnerability in the Solaris Services component allows an unauthenticated attacker with logon access to cause a hang or crash of the operating system. The attack requires local access and specific conditions to trigger, but successful exploitation results in complete unavailability of the affected system.

## Affected products

- Oracle Solaris 11.4

## Timeline

- 2026-10-20: disclosed

## References

- [https://www.oracle.com/security-alerts/cpuoct2026.html](https://www.oracle.com/security-alerts/cpuoct2026.html)

## Related threats

- [Oracle Solaris privilege escalation in utility component](https://junglewise.ai/threats/cve-2026-91537-vulnerability-in-the-oracle-solaris-product-of-oracle-systems)
- [Oracle Solaris privilege escalation in Utility component](https://junglewise.ai/threats/cve-2026-91348-vulnerability-in-the-oracle-solaris-product-of-oracle-systems)
- [Oracle Solaris privilege escalation in Utility component](https://junglewise.ai/threats/cve-2026-91336-vulnerability-in-the-oracle-solaris-product-of-oracle-systems)
- [Oracle Solaris denial of service in Libraries component](https://junglewise.ai/threats/cve-2026-91324-vulnerability-in-the-oracle-solaris-product-of-oracle-systems)
- [Oracle Solaris Services denial of service and information disclosure](https://junglewise.ai/threats/cve-2026-91256-vulnerability-in-the-oracle-solaris-product-of-oracle-systems)