CVE-2025-50082Network attack vector

Authenticated server crash via undisclosed optimizer flaw

Published Jul 15, 2025 · Updated Jul 16, 2025

DoS in Oracle MySQL Server 8.0.0 through 8.0.42, 8.4.0 through 8.4.5, and 9.0.0 through 9.3.0 allows remote authenticated users to crash or hang it. Oracle identifies the Server Optimizer as the affected component but has not published the faulty operation or triggering input. A low-privileged account with network access over the MySQL protocol can trigger a hang or frequently repeatable server crash, without reported confidentiality or integrity impact.

CVSS severity6.5
Medium
EPSS probability0.54%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

DoS in Oracle MySQL Server 8.0.0 through 8.0.42, 8.4.0 through 8.4.5, and 9.0.0 through 9.3.0 allows remote authenticated users to crash or hang it. Oracle identifies the Server Optimizer as the affected component but has not published the faulty operation or triggering input. A low-privileged account with network access over the MySQL protocol can trigger a hang or frequently repeatable server crash, without reported confidentiality or integrity impact.

The record

CVE
CVE-2025-50082
Published
Jul 15, 2025
Updated
Jul 16, 2025
Vendor
Oracle Corporation
Product
MySQL Server
Classifications
CWE-400, T1499.004
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Jul 15, 2025CVE publishedPublication date reported by the CVE source.
  2. Jul 16, 2025Record 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=8.0.0 <=8.0.42
  2. Affected versionversion=8.4.0 <=8.4.5
  3. Affected versionversion=9.0.0 <=9.3.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Oracle Corporation · MySQL Serverversion=8.0.0 <=8.0.42; version=8.4.0 <=8.4.5; version=9.0.0 <=9.3.0

Published CVSS scores

6.5Oracle CorporationCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/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.

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
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-400Uncontrolled Resource Consumption
T1499.004Application or System Exploitation

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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