CVE-2021-2144Network attack vector

Authenticated server takeover via undisclosed parser flaw

Published Apr 22, 2021 · Updated Sep 26, 2024

An undisclosed parser flaw in MySQL Server 5.7.29 and earlier and 8.0.19 and earlier allows remote authenticated users to take over the server. Oracle has not published the parser locus or the incorrect operation performed on attacker-controlled input. Exploitation requires a high-privileged database account with network access and grants control over server data and availability.

CVSS severity7.2
High
EPSS probability1.89%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

An undisclosed parser flaw in MySQL Server 5.7.29 and earlier and 8.0.19 and earlier allows remote authenticated users to take over the server. Oracle has not published the parser locus or the incorrect operation performed on attacker-controlled input. Exploitation requires a high-privileged database account with network access and grants control over server data and availability.

The record

CVE
CVE-2021-2144
Published
Apr 22, 2021
Updated
Sep 26, 2024
Vendor
Oracle Corporation
Product
MySQL Server
Classifications
T1210
Attack vector
network
Privileges
admin

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=5.7.29 and prior
  2. Affected versionversion=8.0.19 and prior

What conditions does exploitation require?

Attack vectornetwork
Required privilegesadmin

What is affected?

Oracle Corporation · MySQL Serverversion=5.7.29 and prior; version=8.0.19 and prior

Published CVSS scores

7.2Oracle CorporationCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/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)
Vectornetwork
Privilegesadmin
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

T1210Exploitation of Remote Services

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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