CVE-2022-21463

Local system hang or repeatable kernel crash

Published Apr 19, 2022 · Updated Sep 24, 2024

Denial of service in the Oracle Solaris 11 kernel allows local users with low privileges to cause a system hang or repeatable crash. Oracle identifies the kernel as the affected component but has not published the vulnerable locus, triggering input, or incorrect operation. Exploitation requires a low-privilege login to the host, and the reported consequence is limited to a complete interruption of system availability.

CVSS severity5.5
Medium
EPSS probability0.24%
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 kernel allows local users with low privileges to cause a system hang or repeatable crash. Oracle identifies the kernel as the affected component but has not published the vulnerable locus, triggering input, or incorrect operation. Exploitation requires a low-privilege login to the host, and the reported consequence is limited to a complete interruption of system availability.

The record

CVE
CVE-2022-21463
Published
Apr 19, 2022
Updated
Sep 24, 2024
Vendor
Oracle
Product
Oracle Solaris
Classifications
T1499.004
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Apr 19, 2022CVE publishedPublication date reported by the CVE source.
  2. Sep 24, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

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  1. Affected versionversion=11

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

Oracle · Oracle Solarisversion=11

Published CVSS scores

2.1NIST NVDAV:L/AC:L/Au:N/C:N/I:N/A:P
5.5OracleCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/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

T1499.004Endpoint Denial of Service: Application or System Exploitation

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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