# CVE-2026-91252: Oracle Solaris denial of service in Services component

Source: https://junglewise.ai/threats/cve-2026-91252-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-2026-91252 · Severity: high · CVSS 8.2 · Published 2026-10-20

A vulnerability in Oracle Solaris version 11.4 allows an unauthenticated attacker on the network to crash the system or read sensitive data by sending specially crafted HTTP requests. An attacker can exploit this flaw to cause service outages (denial of service) or gain unauthorized access to confidential information stored on the affected system.

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

## Quick answers

**Is CVE-2026-91252 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-91252 being exploited in the wild.

**How severe is CVE-2026-91252?** High severity, with a CVSS score of 8.2, published 20 October 2026.

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

**Is there a fix for CVE-2026-91252?** 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-2026-91252 attacked?** It is attacked over the network.

**Am I affected by CVE-2026-91252?** 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

An easily exploitable vulnerability in the Oracle Solaris Services component allows unauthenticated remote attackers to trigger denial of service (system hang or crash) and read unauthorized data. The vulnerability is accessible over the network via HTTP without authentication or user interaction, resulting in both availability and confidentiality impacts.

## 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)