CVE-2022-21271Network attack vector

Unauthenticated partial service interruption

Published Jan 19, 2022 · Updated Sep 24, 2024

Denial of service in the Libraries component of Oracle Solaris 11 allows remote attackers to interrupt service via multiple protocols. Oracle has not disclosed the affected library, entry point, or incorrect operation performed on untrusted input. No authentication or user interaction is required, and successful exploitation causes only a partial service interruption.

CVSS severity5.3
Medium
EPSS probability2.79%
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 Libraries component of Oracle Solaris 11 allows remote attackers to interrupt service via multiple protocols. Oracle has not disclosed the affected library, entry point, or incorrect operation performed on untrusted input. No authentication or user interaction is required, and successful exploitation causes only a partial service interruption.

The record

CVE
CVE-2022-21271
Published
Jan 19, 2022
Updated
Sep 24, 2024
Vendor
Oracle
Product
Oracle Solaris
Classifications
T1499
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jan 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?

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

  1. Affected versionversion=11

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Oracle · Oracle Solarisversion=11

Published CVSS scores

5.3OracleCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

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 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

T1499Endpoint Denial of Service

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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