Oracle MySQL Server up to 5.7.33/8.0.23 Options denial of service

CVSS Meta Temp Score
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CTI Interest Score
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4.7$0-$5k0.00

Summaryinfo

A vulnerability classified as critical has been found in Oracle MySQL Server up to 5.7.33/8.0.23. This affects an unknown function of the component Options. This manipulation causes denial of service. The identification of this vulnerability is CVE-2021-2146. It is possible to initiate the attack remotely. There is no exploit available. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability was found in Oracle MySQL Server up to 5.7.33/8.0.23 (Database Software). It has been declared as critical. Affected by this vulnerability is some unknown processing of the component Options. The manipulation with an unknown input leads to a denial of service vulnerability. The CWE definition for the vulnerability is CWE-404. The product does not release or incorrectly releases a resource before it is made available for re-use. As an impact it is known to affect availability.

The weakness was shared 04/21/2021 as Oracle Critical Patch Update Advisory - April 2021. It is possible to read the advisory at oracle.com. This vulnerability is known as CVE-2021-2146. The technical details are unknown and an exploit is not publicly available. The attack technique deployed by this issue is T1499 according to MITRE ATT&CK.

The vulnerability scanner Nessus provides a plugin with the ID 250095 (Linux Distros Unpatched Vulnerability : CVE-2021-2146), which helps to determine the existence of the flaw in a target environment.

Upgrading eliminates this vulnerability. A possible mitigation has been published immediately after the disclosure of the vulnerability.

The vulnerability is also documented in the vulnerability database at Tenable (250095). Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.9
VulDB Meta Temp Score: 4.7

VulDB Base Score: 4.9
VulDB Temp Score: 4.7
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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VulDB Base Score: 🔍
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NVD Base Score: 🔍

Exploitinginfo

Class: Denial of service
CWE: CWE-404
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 250095
Nessus Name: Linux Distros Unpatched Vulnerability : CVE-2021-2146

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍

Timelineinfo

12/09/2020 🔍
04/21/2021 +132 days 🔍
04/21/2021 +0 days 🔍
04/23/2021 +2 days 🔍
08/17/2025 +1577 days 🔍

Sourcesinfo

Vendor: oracle.com

Advisory: Oracle Critical Patch Update Advisory - April 2021
Status: Confirmed

CVE: CVE-2021-2146 (🔍)
GCVE (CVE): GCVE-0-2021-2146
GCVE (VulDB): GCVE-100-173599

Entryinfo

Created: 04/23/2021 06:40
Updated: 08/17/2025 11:55
Changes: 04/23/2021 06:40 (40), 04/26/2021 10:02 (5), 04/26/2021 10:04 (1), 04/28/2021 12:10 (7), 08/17/2025 11:55 (16)
Complete: 🔍
Cache ID: 216::103

Be aware that VulDB is the high quality source for vulnerability data.

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