CVE-2026-91256

HIGH
MEDIUM Priority: 0.03 BB Relevance: 64/100
Published: 2026-10-20 Modified: 2026-10-28 First seen: 2026-10-29 Status: active

Attack Surface

Network Low Complexity No Interaction

CVSS Vector Breakdown

AV: Network
AC: Low
PR: Low
UI: None
S: Unchanged
C: Low
I: None
A: High

Description

Vulnerability in the Oracle Solaris product of Oracle Systems (component: Services). The supported version that is affected is 11.4. Easily exploitable vulnerability allows low privileged attacker with network access via HTTP to compromise Oracle Solaris. Successful attacks of this vulnerability can result in unauthorized ability to cause a hang or frequently repeatable crash (complete DOS) of Oracle Solaris and unauthorized read access to a subset of Oracle Solaris accessible data. CVSS 3.1 Base Score 7.1 (Confidentiality and Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:H).

Weakness Classification (1)

Affected Software (1)

VendorProductVersion
Oracle Corporation Oracle Solaris 11.4

Bug Bounty Relevance

64 / 100
✓ Network accessible
✓ Low complexity
✓ No user interaction

CVSS Score

7.1 / 10.0 v3.1
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:H

EPSS — Exploitation Probability

0.36%
Raw Score 0.003650
Percentile 30.3%
Date 2026-10-29

EPSS Trend

2026-10-29
0.00365
2026-10-28
0.00365

Intelligence Sources

mitre ref →
nvd ref →