CVE-2026-87293 (GCVE-0-2026-87293)
Vulnerability from cvelistv5 – Published: 2026-10-20 21:23 – Updated: 2026-10-20 21:23
VLAI
EPSS
VEX
Summary
Vulnerability in Oracle Java SE (component: RMI). Supported versions that are affected are Oracle Java SE: 8u503 and 8u503-perf; Oracle GraalVM Enterprise Edition: 21.3.19.1.1. Difficult to exploit vulnerability allows unauthenticated attacker with network access via multiple protocols to compromise Oracle Java SE. While the vulnerability is in Oracle Java SE, attacks may significantly impact additional products (scope change). Successful attacks of this vulnerability can result in unauthorized update, insert or delete access to some of Oracle Java SE accessible data as well as unauthorized read access to a subset of Oracle Java SE accessible data. Note: This vulnerability can only be exploited by supplying data to APIs in the specified Component without using Untrusted Java Web Start applications or Untrusted Java applets, such as through a web service. CVSS 3.1 Base Score 5.4 (Confidentiality and Integrity impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:L/A:N).
Severity
5.4 (Medium)
CWE
- Difficult to exploit vulnerability allows unauthenticated attacker with network access via multiple protocols to compromise Oracle Java SE. While the vulnerability is in Oracle Java SE, attacks may significantly impact additional products (scope change). Successful attacks of this vulnerability can result in unauthorized update, insert or delete access to some of Oracle Java SE accessible data as well as unauthorized read access to a subset of Oracle Java SE accessible data.
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://www.oracle.com/security-alerts/cpuoct2026.html | vendor-advisory |
Impacted products
1 product
| Vendor | Product | Version | CPE status | |
|---|---|---|---|---|
| Oracle Corporation | Oracle Java SE |
Affected:
8u503
Affected: 8u503-perf cpe:2.3:a:oracle:java_se:8u503:*:*:*:*:*:*:* cpe:2.3:a:oracle:java_se:8u503:*:*:*:enterprise_performance:*:*:* |
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"id": "CVE-2026-87293",
"lastModified": "2026-10-21T18:44:19.627",
"metrics": {
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"published": "2026-10-20T22:20:06.277",
"references": [
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"sourceIdentifier": "secalert_us@oracle.com",
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"redhat_vex": {
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"current_release_date": "2026-10-22T00:49:49+00:00",
"cve": "CVE-2026-87293",
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"initial_release_date": "2026-10-20T21:23:52.573000+00:00",
"product_status:known_affected": "110",
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"source": "Red Hat CSAF VEX",
"status": "final",
"title": "openjdk: Enhance RMI connections (Oracle CPU 2026-10)",
"url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-87293.json",
"version": "3"
}
}
}
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Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
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The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
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Related by attack behaviour
Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.