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TI-2021-01687 Aliases CVE-2021-2001GHSA-2r9w-7426-5qwr

Vulnerability in the MySQL Server product of Oracle MySQL (component: Server: Optimizer).

Priority LOW 27Published · Updated

Key facts

Attack vector
Network
Privileges required
High
User interaction
None
Attack complexity
Low
Impact type
—
Confidentiality · integrity · availability
None · None · High
Fix status
Partial Red Hat: 4 fixed, 1 without a fix

Attack profile from CVSS 3.1 · CNA. Fix status from CNA and Red Hat.

Summary

Vulnerability in the MySQL Server product of Oracle MySQL (component: Server: Optimizer). Supported versions that are affected are 5.6.50 and prior, 5.7.30 and prior and 8.0.17 and prior. Easily exploitable vulnerability allows high privileged attacker with network access via multiple protocols to compromise MySQL Server. Successful attacks of this vulnerability can result in unauthorized ability to cause a hang or frequently repeatable crash (complete DOS) of MySQL Server. CVSS 3.1 Base Score 4.9 (Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H).

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.02232 82nd percentileScored 2026-11-07
Fix Partial Red Hat: 2 advisoriesRed Hat: 4 fixed, 1 without a fix

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
OracleMySQL Serverup to 5.6.50; up to 5.7.30; up to 8.0.17—No fix listedCNA
  • MySQL Server VendorOracle Affected up to 5.6.50; up to 5.7.30; up to 8.0.17 Fixed in — No fix listed CNA

CPE configurations NVD · 6

CPEVersionsRoleVendor
cpe:2.3:a:oracle:mysql:*:*:*:*:*:*:*:*5.6.0 – 5.6.50; 5.7.0 – 5.7.30; 8.0.0 – 8.0.17VulnerableOracle
cpe:2.3:o:fedoraproject:fedora:32:*:*:*:*:*:*:*32VulnerableFedoraproject
cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:*33VulnerableFedoraproject
cpe:2.3:a:netapp:oncommand_insight:-:*:*:*:*:*:*:*not specified by NVDVulnerableNetApp
cpe:2.3:a:netapp:oncommand_workflow_automation:-:*:*:*:*:*:*:*not specified by NVDVulnerableNetApp
cpe:2.3:a:netapp:snapcenter:-:*:*:*:*:*:*:*not specified by NVDVulnerableNetApp
  • cpe:2.3:a:oracle:mysql:*:*:*:*:*:*:*:* Versions 5.6.0 – 5.6.50; 5.7.0 – 5.7.30; 8.0.0 – 8.0.17 Vulnerable ·Oracle
  • cpe:2.3:o:fedoraproject:fedora:32:*:*:*:*:*:*:* Versions 32 Vulnerable ·Fedoraproject
  • cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:* Versions 33 Vulnerable ·Fedoraproject
  • cpe:2.3:a:netapp:oncommand_insight:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·NetApp
  • cpe:2.3:a:netapp:oncommand_workflow_automation:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·NetApp
  • cpe:2.3:a:netapp:snapcenter:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·NetApp

Remediation

Red Hat 2 advisories

  • RHSA-2021:3811 Released 2021-10-12 · Red Hat rating Moderate
    rh-mysql80-mysql security, bug fix, and enhancement update
    • Red Hat Software Collections for Red Hat Enterprise Linux Server (v. 7) rh-mysql80-mysql-8.0.26-1.el7, rh-mysql80-mysql-common-8.0.26-1.el7, rh-mysql80-mysql-config-8.0.26-1.el7 +7
    • Red Hat Software Collections for Red Hat Enterprise Linux Server EUS (v. 7.7) rh-mysql80-mysql-8.0.26-1.el7, rh-mysql80-mysql-common-8.0.26-1.el7, rh-mysql80-mysql-config-8.0.26-1.el7 +7
    • Red Hat Software Collections for Red Hat Enterprise Linux Workstation (v. 7) rh-mysql80-mysql-8.0.26-1.el7, rh-mysql80-mysql-common-8.0.26-1.el7, rh-mysql80-mysql-config-8.0.26-1.el7 +7
  • RHSA-2021:3590 Released 2021-09-21 · Red Hat rating Moderate
    mysql:8.0 security, bug fix, and enhancement update
    • Red Hat Enterprise Linux AppStream (v. 8) mecab-0.996-1.module+el8.0.0+3898+e09bb8de.9.aarch64::mysql:8.0, mecab-0.996-1.module+el8.0.0+3898+e09bb8de.9.ppc64le::mysql:8.0, mecab-0.996-1.module+el8.0.0+3898+e09bb8de.9.s390x::mysql:8.0 +40

Fixed in the same release

Records fixed by the same vendor advisory or release, as the CNA lists them.

  • Advisory ·

    Oracle MySQL Server — FEDORA-2021-b1d1655cef

    14 records Highest priority Priority LOW 14 LOW

    Other records, highest priority first

    • TI-2021-01707 Vulnerability in the MySQL Server product of Oracle MySQL (component: Server: Optimizer).Priority LOW 35
    • TI-2021-01706 Vulnerability in the MySQL Server product of Oracle MySQL (component: Server: Optimizer).Priority LOW 34
    • TI-2021-01697 Vulnerability in the MySQL Client product of Oracle MySQL (component: C API).Priority LOW 32
    Show all 14 records → Advisory →
  • Advisory ·

    Oracle MySQL Server — FEDORA-2021-db50ab62d3

    14 records Highest priority Priority LOW 14 LOW

    Other records, highest priority first

    • TI-2021-01707 Vulnerability in the MySQL Server product of Oracle MySQL (component: Server: Optimizer).Priority LOW 35
    • TI-2021-01706 Vulnerability in the MySQL Server product of Oracle MySQL (component: Server: Optimizer).Priority LOW 34
    • TI-2021-01697 Vulnerability in the MySQL Client product of Oracle MySQL (component: C API).Priority LOW 32
    Show all 14 records → Advisory →

Vendor assessments

Red Hat

Red Hat rating: Moderate. Red Hat's page for this CVE →

ProductStatusPlan or fix
Red Hat Enterprise Linux 6AffectedNo fix planned: Out of support scope
Red Hat Enterprise Linux AppStream (v. 8)Fixed RHSA-2021:3590
Red Hat Software Collections for Red Hat Enterprise Linux Server (v. 7)Fixed RHSA-2021:3811
Red Hat Software Collections for Red Hat Enterprise Linux Server EUS (v. 7.7)Fixed RHSA-2021:3811
Red Hat Software Collections for Red Hat Enterprise Linux Workstation (v. 7)Fixed RHSA-2021:3811
Not affected: 5 products
  • Red Hat Enterprise Linux 7
  • Red Hat Enterprise Linux 8
  • Red Hat OpenStack Platform 10 (Newton)
  • Red Hat OpenStack Platform 13 (Queens)
  • Red Hat Software Collections

Timeline

  1. 2026-10-02 Threatist record created from CVE-2021-2001
  2. 2026-10-03 Alias added: GHSA-2r9w-7426-5qwr

References

Advisory 5

  • TI-2017-02794 Vulnerability in the MySQL Server component of Oracle MySQL (subcomponent: Server… CVSS 3.0HIGH 7.5
  • TI-2016-05707 Oracle MySQL through 5.5.52, 5.6.x through 5.6.33, and 5.7.x through 5.7.15; MariaDB… CVSS 3.0CRITICAL 9.8
  • TI-2003-00723 Buffer overflow in get_salt_from_password from sql_acl.cc for MySQL 4.0.14 and earlier… CVSS 2.0HIGH 9.0
  • TI-2020-04444 RFD Attack via "Content-Disposition" Header Sourced from Request Input by Spring MVC or Spring WebFlux Application CVSS 3.1HIGH 7.5
  • TI-2008-00208 Multiple buffer overflows in yaSSL 1.7.5 and earlier, as used in MySQL and possibly other… CVSS 2.0HIGH 7.5
  • TI-2020-01888 Segmentation fault in SSL_check_chain CVSS 3.1HIGH 7.5
See all 1327 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences