CVE-2026-87304

CVE-2026-87304

High · published October 21, 2026

CVSS v3.1
8.6
EPSS
0%
Percentile
32.8
In the wild
Unconfirmed
What it is

Vulnerability in the Oracle Outside In Technology product of Oracle Fusion Middleware (component: Outside In Core). The supported version that is affected is 8.5.8. Easily exploitable vulnerability allows unauthenticated attacker with network access via HTTP to compromise Oracle Outside In Technology. While the vulnerability is in Oracle Outside In Technology, attacks may significantly impact additional products (scope change). Successful attacks of this vulnerability can result in unauthorized access to critical data or complete access to all Oracle Outside In Technology accessible data. CVSS 3.1 Base Score 8.6 (Confidentiality impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N).

The record
Technical detail
CVSS v3.1
8.6 · HIGH
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N
CVSS v4.0
Not supplied
EPSS
0.00398 · 32.8th percentile
Published
2026-10-21T02:20Z
References (1)
EPSS history
Timeline
  • 22 OCT 03:35Z
    EPSS moved — → 0%
    epss
  • 20 OCT 21:23Z
    Vulnerability in the Oracle Outside In Technology product of Oracle Fusion Middleware (component: Outside In Core)
    cvelistv5
  • 20 OCT 21:23Z
    Vulnerability in the Oracle Outside In Technology product of Oracle Fusion Middleware (component: Outside In Core)
    cvelistv5