CVE-2021-2007Network attack vector

Unauthenticated disclosure of client-accessible data

Published Jan 20, 2021 · Updated Sep 26, 2024

Information disclosure in MySQL Client 5.6.47 and earlier, 5.7.29 and earlier, and 8.0.19 and earlier allows remote attackers to read client data. Oracle identifies the C API as the affected component but has not published the faulty function or operation within it. Exploitation requires no credentials but has high attack complexity and is limited to reading a subset of client-accessible data, with no reported modification or service interruption.

CVSS severity3.7
Low
EPSS probability2.27%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Information disclosure in MySQL Client 5.6.47 and earlier, 5.7.29 and earlier, and 8.0.19 and earlier allows remote attackers to read client data. Oracle identifies the C API as the affected component but has not published the faulty function or operation within it. Exploitation requires no credentials but has high attack complexity and is limited to reading a subset of client-accessible data, with no reported modification or service interruption.

The record

CVE
CVE-2021-2007
Published
Jan 20, 2021
Updated
Sep 26, 2024
Vendor
Oracle Corporation
Product
MySQL Server
Classifications
Unavailable
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jan 20, 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=5.6.47 and prior
  2. Affected versionversion=5.7.29 and prior
  3. Affected versionversion=8.0.19 and prior

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Oracle Corporation · MySQL Serverversion=5.6.47 and prior; version=5.7.29 and prior; version=8.0.19 and prior

Published CVSS scores

3.7OracleCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N
4.3NIST NVDAV:N/AC:M/Au:N/C:P/I:N/A:N

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.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

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
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

No sourced classifications are available.

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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