CVE-2020-2922Network attack vector

Information disclosure through undisclosed C API flaw

Published Apr 15, 2020 · Updated Sep 27, 2024

Information disclosure in the C API bundled with Oracle MySQL Server allows remote attackers to read some client-accessible data over the network. Oracle has not published the affected C API function, the untrusted protocol field it mishandles, or the incorrect operation that exposes data. Affected releases are 5.6.47 and earlier, 5.7.29 and earlier, and 8.0.18 and earlier; exploitation is unauthenticated but requires high-complexity conditions.

CVSS severity3.7
Low
EPSS probability2.50%
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 the C API bundled with Oracle MySQL Server allows remote attackers to read some client-accessible data over the network. Oracle has not published the affected C API function, the untrusted protocol field it mishandles, or the incorrect operation that exposes data. Affected releases are 5.6.47 and earlier, 5.7.29 and earlier, and 8.0.18 and earlier; exploitation is unauthenticated but requires high-complexity conditions.

The record

CVE
CVE-2020-2922
Published
Apr 15, 2020
Updated
Sep 27, 2024
Vendor
Oracle Corporation
Product
MySQL Server
Classifications
Unavailable
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Apr 15, 2020CVE publishedPublication date reported by the CVE source.
  2. Sep 27, 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=8.0.18 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=8.0.18 and prior

Published CVSS scores

3.7OracleCVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N
3.7NIST NVDCVSS: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 9, 2026Sep 15, 2026
Latest reporting daySep 15, 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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