# CVE-2026-87421: Oracle Solaris remote vulnerability in Image Packaging System

Source: https://junglewise.ai/threats/cve-2026-87421-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-2026-87421 · Severity: high · CVSS 7.1 · Published 2026-10-20

Oracle Solaris is a Unix-based operating system used in enterprise data centers. A vulnerability in its Image Packaging System component allows a network attacker to gain unauthorized access to sensitive data or modify system data without authentication, though user interaction is required. This could lead to data theft or system compromise on affected servers.

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

## Quick answers

**Is CVE-2026-87421 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-87421 being exploited in the wild.

**How severe is CVE-2026-87421?** High severity, with a CVSS score of 7.1, published 20 October 2026.

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

**Is there a fix for CVE-2026-87421?** 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-2026-87421 attacked?** It is attacked over the network, in an operating system.

**Am I affected by CVE-2026-87421?** 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 Oracle Solaris 11.4's Image Packaging System component allows unauthenticated network access via HTTP to achieve data exposure and integrity compromise. The attack requires human interaction from a third party and does not require authentication or special privileges. A fix is likely available but not identified in the available advisory details.

## 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)

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