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01 Record

CVE-2021-2065

Vulnerability in the MySQL Server product of Oracle MySQL (component: Server: Optimizer). Supported versions that are affected are 8.0.22 and prior. Easily exploitable vulnerability allows high

MediumPUBLISHEDCNA: oracle
CNA base score4.9 CVSS v3.xCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H
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02 Description

Vulnerability in the MySQL Server product of Oracle MySQL (component: Server: Optimizer). Supported versions that are affected are 8.0.22 and prior. Easily exploitable vulnerability allows high

03 Exploitation and scoring

Exploitation
Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.
SSVC decision
  • ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
  • AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
  • Technical ImpactpartialSuccessful exploitation gives limited control of the vulnerable component.
CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.
EPSS probability
2.18% probability of exploitation activity in the next 30 days.
EPSS percentile
Equal to or higher than the score of 82.0% of scored records. A rank, not a probability.
NVD base score
4.9 (CVSS v3.x), scored by the NVD independently of the CNA.
NVD CVSS vector
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H
NVD analysis status
Modified. NVD last modified this record on 2026-06-17.
Red Hat severity
Moderate. Red Hat's rating for its own products, not a CVSS rating.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

04 Metadata

Published
2021-01-20 14:50Z5 YR AGO
Last updated
2024-09-26 18:22Z2 YR AGO
Reserved
2020-12-09
Assigning CNA
oracle
Record state
PUBLISHED
Severity
Medium (CVSS 4.9)
CNA CVSS vector
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H
Weaknesses
No CWE assigned
Data version
5.1
Document digest
86534865ee3a474eb3840e49823b2bdbf5672d910f3738ffe295e85fc9e74f2c

05 Affected products

VendorProductVersionsPlatforms
Oracle CorporationMySQL Server8.0.22 and prior—

06 References

07 Fixed in

AlmaLinux 8

  • mecab
    Fixed

    A version is affected if any line below covers it.

    • Affected before 0.996-1.module_el8.4.0+2532+b8928c02.9
    • Affected before 0.996-1.module_el8.5.0+33+8bc5f36a.9
  • mecab-ipadic
    Fixed

    A version is affected if any line below covers it.

    • Affected before 2.7.0.20070801-16.module_el8.4.0+2532+b8928c02
    • Affected before 2.7.0.20070801-16.module_el8.5.0+33+8bc5f36a
  • mecab-ipadic-EUCJP
    Fixed

    A version is affected if any line below covers it.

    • Affected before 2.7.0.20070801-16.module_el8.4.0+2532+b8928c02
    • Affected before 2.7.0.20070801-16.module_el8.5.0+33+8bc5f36a
  • mysql
    Fixed

    A version is affected if any line below covers it.

    • Affected before 8.0.26-1.module_el8.4.0+2532+b8928c02
    • Affected before 8.0.26-1.module_el8.5.0+33+8bc5f36a
  • mysql-common
    Fixed

    A version is affected if any line below covers it.

    • Affected before 8.0.26-1.module_el8.4.0+2532+b8928c02
    • Affected before 8.0.26-1.module_el8.5.0+33+8bc5f36a
  • mysql-devel
    Fixed

    A version is affected if any line below covers it.

    • Affected before 8.0.26-1.module_el8.4.0+2532+b8928c02
    • Affected before 8.0.26-1.module_el8.5.0+33+8bc5f36a
  • mysql-errmsg
    Fixed

    A version is affected if any line below covers it.

    • Affected before 8.0.26-1.module_el8.4.0+2532+b8928c02
    • Affected before 8.0.26-1.module_el8.5.0+33+8bc5f36a
  • mysql-libs
    Fixed

    A version is affected if any line below covers it.

    • Affected before 8.0.26-1.module_el8.4.0+2532+b8928c02
    • Affected before 8.0.26-1.module_el8.5.0+33+8bc5f36a
  • mysql-server
    Fixed

    A version is affected if any line below covers it.

    • Affected before 8.0.26-1.module_el8.4.0+2532+b8928c02
    • Affected before 8.0.26-1.module_el8.5.0+33+8bc5f36a
  • mysql-test
    Fixed

    A version is affected if any line below covers it.

    • Affected before 8.0.26-1.module_el8.4.0+2532+b8928c02
    • Affected before 8.0.26-1.module_el8.5.0+33+8bc5f36a

Source: AlmaLinux, AlmaLinux OS. Copyright (c) 2023 AlmaLinux OS. Licensed under MIT License. Received through OSV.dev. Reformatted by exploit.cc.

CloudLinux 8

  • mecab
    Fixed

    A version is affected if any line below covers it.

    • Affected before 0.996-1.module_el8.4.0+2532+b8928c02.9
    • Affected before 0.996-1.module_el8.5.0+33+8bc5f36a.9
  • mecab-ipadic
    Fixed

    A version is affected if any line below covers it.

    • Affected before 2.7.0.20070801-16.module_el8.4.0+2532+b8928c02
    • Affected before 2.7.0.20070801-16.module_el8.5.0+33+8bc5f36a
  • mecab-ipadic-EUCJP
    Fixed

    A version is affected if any line below covers it.

    • Affected before 2.7.0.20070801-16.module_el8.4.0+2532+b8928c02
    • Affected before 2.7.0.20070801-16.module_el8.5.0+33+8bc5f36a
  • mysql
    Fixed

    A version is affected if any line below covers it.

    • Affected before 8.0.26-1.module_el8.4.0+2532+b8928c02
    • Affected before 8.0.26-1.module_el8.5.0+33+8bc5f36a
  • mysql-common
    Fixed

    A version is affected if any line below covers it.

    • Affected before 8.0.26-1.module_el8.4.0+2532+b8928c02
    • Affected before 8.0.26-1.module_el8.5.0+33+8bc5f36a
  • mysql-devel
    Fixed

    A version is affected if any line below covers it.

    • Affected before 8.0.26-1.module_el8.4.0+2532+b8928c02
    • Affected before 8.0.26-1.module_el8.5.0+33+8bc5f36a
  • mysql-errmsg
    Fixed

    A version is affected if any line below covers it.

    • Affected before 8.0.26-1.module_el8.4.0+2532+b8928c02
    • Affected before 8.0.26-1.module_el8.5.0+33+8bc5f36a
  • mysql-libs
    Fixed

    A version is affected if any line below covers it.

    • Affected before 8.0.26-1.module_el8.4.0+2532+b8928c02
    • Affected before 8.0.26-1.module_el8.5.0+33+8bc5f36a
  • mysql-server
    Fixed

    A version is affected if any line below covers it.

    • Affected before 8.0.26-1.module_el8.4.0+2532+b8928c02
    • Affected before 8.0.26-1.module_el8.5.0+33+8bc5f36a
  • mysql-test
    Fixed

    A version is affected if any line below covers it.

    • Affected before 8.0.26-1.module_el8.4.0+2532+b8928c02
    • Affected before 8.0.26-1.module_el8.5.0+33+8bc5f36a

Derived from AlmaLinux 8. Partial coverage: only packages taken from AlmaLinux 8 are listed.

Source: CloudLinux errata, CloudLinux Inc. Derived from: AlmaLinux, AlmaLinux OS. Copyright (c) 2023 AlmaLinux OS. Licensed under MIT License. Received through OSV.dev. Reformatted by exploit.cc.

Ubuntu 14.04 LTS

  • mysql-5.5
    No fix yet

Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.

Ubuntu 16.04 LTS

  • percona-server-5.6
    No fix yet
  • percona-xtradb-cluster-5.6
    No fix yet

Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.

Ubuntu 20.04 LTS

  • mysql-8.0
    Fixed in 8.0.23-0ubuntu0.20.04.1

Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.

A release or ecosystem missing from this list has no record here. It may be unaffected or not covered by the source. Source notices and licences.