CVE-2026-34281

Local system hang or repeated crash

Published Apr 21, 2026 · Updated Apr 21, 2026

Denial of service in the Oracle Solaris 11.4 kernel allows local users with low privileges to cause a system hang or repeated crash. Oracle has not published the vulnerable kernel subsystem, input, or resource operation that triggers the failure. A logged-on low-privileged account is required; the documented consequence is limited to availability, with no confidentiality or integrity impact.

CVSS severity6.5
Medium
EPSS probability0.12%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Denial of service in the Oracle Solaris 11.4 kernel allows local users with low privileges to cause a system hang or repeated crash. Oracle has not published the vulnerable kernel subsystem, input, or resource operation that triggers the failure. A logged-on low-privileged account is required; the documented consequence is limited to availability, with no confidentiality or integrity impact.

The record

CVE
CVE-2026-34281
Published
Apr 21, 2026
Updated
Apr 21, 2026
Vendor
Oracle
Product
Oracle Solaris
Classifications
CWE-400, T1499
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Apr 21, 2026CVE publishedPublication date reported by the CVE source.
  2. Apr 21, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=11.4

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

Oracle · Oracle Solarisversion=11.4

Published CVSS scores

6.5OracleCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-400Uncontrolled Resource Consumption
T1499Endpoint Denial of Service

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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