CVE-2025-21548Network attack vector

Privileged data modification and service interruption

Published Jan 21, 2025 · Updated Mar 18, 2025

Unspecified flaw in Oracle MySQL Connector/Python 9.1.0 and earlier allows remote authenticated users to modify data or interrupt service. Oracle has not disclosed the affected function or the operation it performs incorrectly on untrusted MySQL protocol input. Exploitation requires high privileges and another person's interaction; successful attacks can read some accessible data, modify or delete critical data, and cause hangs or repeated crashes.

CVSS severity6.4
Medium
EPSS probability0.46%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Unspecified flaw in Oracle MySQL Connector/Python 9.1.0 and earlier allows remote authenticated users to modify data or interrupt service. Oracle has not disclosed the affected function or the operation it performs incorrectly on untrusted MySQL protocol input. Exploitation requires high privileges and another person's interaction; successful attacks can read some accessible data, modify or delete critical data, and cause hangs or repeated crashes.

The record

CVE
CVE-2025-21548
Published
Jan 21, 2025
Updated
Mar 18, 2025
Vendor
Oracle Corporation
Product
MySQL Connectors
Classifications
CWE-400, T1210
Attack vector
network
Privileges
admin

Timeline

How it unfolded

  1. Jan 21, 2025CVE publishedPublication date reported by the CVE source.
  2. Mar 18, 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=* <=9.1.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesadmin

What is affected?

Oracle Corporation · MySQL Connectorsversion=* <=9.1.0

Published CVSS scores

6.4Oracle CorporationCVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:L/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.

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
Privilegesadmin
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-400Uncontrolled Resource Consumption
T1210Exploitation of Remote Services

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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