CVE-2020-2647

Local kernel denial of service

Published Jan 15, 2020 · Updated Sep 30, 2024

Denial of service in the Oracle Solaris 10 and 11 kernel allows local users to hang or repeatedly crash the system through user interaction. Oracle has not disclosed the affected kernel locus or the operation that mishandles attacker-controlled input. A low-privileged account and action by another person are required; successful exploitation affects availability only and does not expose or alter data.

CVSS severity5.0
Medium
EPSS probability0.35%
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 10 and 11 kernel allows local users to hang or repeatedly crash the system through user interaction. Oracle has not disclosed the affected kernel locus or the operation that mishandles attacker-controlled input. A low-privileged account and action by another person are required; successful exploitation affects availability only and does not expose or alter data.

The record

CVE
CVE-2020-2647
Published
Jan 15, 2020
Updated
Sep 30, 2024
Vendor
Oracle
Product
Oracle Solaris
Classifications
T1499
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Jan 15, 2020CVE publishedPublication date reported by the CVE source.
  2. Sep 30, 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=10
  2. Affected versionversion=11

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

Oracle · Oracle Solarisversion=10; version=11

Published CVSS scores

1.9NIST NVDAV:L/AC:M/Au:N/C:N/I:N/A:P
5.0OracleCVSS:3.0/AV:L/AC:L/PR:L/UI:R/S:U/C:N/I:N/A:H
5.0NIST NVDCVSS:3.1/AV:L/AC:L/PR:L/UI:R/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

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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