CVE-2025-50098Network attack vector

Partial service interruption via undisclosed Optimizer flaw

Published Jul 15, 2025 · Updated Jul 17, 2025

Denial of service in Oracle MySQL Server allows remote authenticated users with high privileges to partially interrupt service over MySQL Protocol. Versions 8.0.0 through 8.0.42, 8.4.0 through 8.4.5, and 9.0.0 through 9.3.0 contain an Optimizer flaw whose resource-consuming operation Oracle has not disclosed. Exploitation requires a high-privilege database account and causes reduced availability rather than a complete crash or data impact.

CVSS severity2.7
Low
EPSS probability0.43%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Denial of service in Oracle MySQL Server allows remote authenticated users with high privileges to partially interrupt service over MySQL Protocol. Versions 8.0.0 through 8.0.42, 8.4.0 through 8.4.5, and 9.0.0 through 9.3.0 contain an Optimizer flaw whose resource-consuming operation Oracle has not disclosed. Exploitation requires a high-privilege database account and causes reduced availability rather than a complete crash or data impact.

The record

CVE
CVE-2025-50098
Published
Jul 15, 2025
Updated
Jul 17, 2025
Vendor
Oracle Corporation
Product
MySQL Server
Classifications
CWE-400, T1499
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Jul 15, 2025CVE publishedPublication date reported by the CVE source.
  2. Jul 17, 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

2.7Oracle CorporationCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:L

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
T1499Endpoint Denial of Service

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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