CVE-2021-2192

Local kernel crash and data modification

Published Apr 22, 2021 · Updated Sep 26, 2024

Kernel vulnerability in Oracle Solaris 11 allows local users to modify accessible data or crash SPARC systems via an undisclosed vector. Oracle has not published the affected kernel locus or the operation that mishandles attacker-controlled input. Exploitation requires a low-privileged login on a SPARC system and can cause a hang, repeatable crash, or unauthorized data changes.

CVSS severity6.1
Medium
EPSS probability0.26%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Kernel vulnerability in Oracle Solaris 11 allows local users to modify accessible data or crash SPARC systems via an undisclosed vector. Oracle has not published the affected kernel locus or the operation that mishandles attacker-controlled input. Exploitation requires a low-privileged login on a SPARC system and can cause a hang, repeatable crash, or unauthorized data changes.

The record

CVE
CVE-2021-2192
Published
Apr 22, 2021
Updated
Sep 26, 2024
Vendor
Oracle
Product
Oracle Solaris
Classifications
T1565, T1499
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Apr 22, 2021CVE publishedPublication date reported by the CVE source.
  2. Sep 26, 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?

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

  1. Affected versionversion=11

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

Oracle · Oracle Solarisversion=11

Published CVSS scores

6.1OracleCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:H
5.6NIST NVDAV:L/AC:L/Au:N/C:N/I:P/A:P

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

T1565Data Manipulation
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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