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CVE-2021-2304

16
FAUCET Score

CVE-2021-2304 is a vulnerability in the MySQL Server's Stored Procedure component, affecting versions 8.0.23 and prior, as well as several NetApp and Oracle products utilizing MySQL. This vulnerability allows a highly privileged attacker with network access to cause a complete denial of service (crash) of the MySQL Server or to perform unauthorized data modifications. With a CVSS 3.1 Base Score of 5.5 (Medium), it is easily exploitable but requires high privileges. There is no evidence of active exploitation, publicly available exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
>= 8.0.0, <= 8.0.23CPE matchmatch criteria
cpe:2.3:a:oracle:mysql:*:*:*:*:*:*:*:*
Range not provided by sourceCPE matchmatch criteria
cpe:2.3:a:netapp:active_iq_unified_manager:-:*:*:*:*:vmware_vsphere:*:*
Range not provided by sourceCPE matchmatch criteria
cpe:2.3:a:netapp:active_iq_unified_manager:-:*:*:*:*:windows:*:*
Range not provided by sourceCPE matchmatch criteria
cpe:2.3:a:netapp:oncommand_insight:-:*:*:*:*:*:*:*
Range not provided by sourceCPE matchmatch criteria
cpe:2.3:a:netapp:oncommand_workflow_automation:-:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

5.5MEDIUM

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:L/A:H

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
HIGH
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
LOW
Availability Impact
HIGH
Exploitability Score
1.2
Impact Score
4.2
CvssVersion
3.1

Exploit Intelligence

EPSS Score
1.16%
Probability of exploitation in next 30 days
EPSS Percentile
63.8%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0116 is in the 71st percentile among its peer group of 3,566 CVEs.

Social Chatter

No social media mentions found for this CVE.

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (8)

microsoftpatch availablevia msrc
Product: CBL Mariner 1.0 ARMFixed in: 8.0.26-1
microsoftpatch availablevia msrc
Product: cm1 mysql 8.0.26-1 on CBL Mariner 1.0Fixed in: 8.0.26-1
microsoftpatch availablevia msrc
Product: CBL Mariner 1.0 x64Fixed in: 8.0.26-1
microsoftpatch availablevia msrc
Product: 19031-16820Fixed in: 8.0.26-1
redhatpatch availablevia redhat_api
Product: Red Hat Software Collections for Red Hat Enterprise Linux 7.7 EUSFixed in: rh-mysql80-mysql-0:8.0.26-1.el7
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 8Fixed in: mysql:8.0-8040020210824134700.522a0ee4
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Software Collections for Red Hat Enterprise Linux 7Fixed in: rh-mysql80-mysql-0:8.0.26-1.el7
View patch
oraclevendor investigatingvia nvd_reference
View patch

Vendor Advisories (3)

microsoft2023-Mar/CVE-2021-2304

CVE-2021-2304

Mar 14, 2023
redhatCVE-2021-2304Moderate

mysql: Server: Stored Procedure unspecified vulnerability (CPU Apr 2021)

Apr 20, 2021
microsoft2021-Apr/CVE-2021-2304Moderate

Vulnerability in the MySQL Server product of Oracle MySQL (component: Server: Stored Procedure). Supported versions that are affected are 8.0.23 and prior. Easily exploitable vulnerability allows high privileged attacker with network access via multiple protocols to compromise MySQL Server. Successful attacks of this vulnerability can result in unauthorized ability to cause a hang or frequently repeatable crash (complete DOS) of MySQL Server as well as unauthorized update insert or delete access to some of MySQL Server accessible data. CVSS 3.1 Base Score 5.5 (Integrity and Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:L/A:H).

Apr 13, 2021

References

security.netapp.com / advisory/ntap-20210513-0002
Third Party Advisory
oracle.com / security-alerts/cpuapr2021.html
Vendor Advisory