Home/CVE/Vulnerability in the MySQL Server product of Oracle MySQL (component: InnoDB). Supported versions that are affected are
CVE

CVE-2021-2042

Vulnerability in the MySQL Server product of Oracle MySQL (component: InnoDB). Supported versions that are affected are

Vulnerability in the MySQL Server product of Oracle MySQL (component: InnoDB). Supported versions that are affected are 8.0.21 and prior. Easily exploitable vulnerability allows high privileged attacker with logon to the infrastructure where MySQL Server executes to compromise MySQL Server.

Successful attacks of this vulnerability can result in unauthorized read access to a subset of MySQL Server accessible data. CVSS 3.1 Base Score 2.3 (Confidentiality impacts). CVSS Vector: (CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:L/I:N/A:N).

LOW · CVSS 2.3 EPSS 0.00101
Monitor
  • No active-exploitation, high-EPSS, or public-exploit signals - routine patching cadence
Sigma rules2 YARA rules0
▤

Affected Products & Versions

4
oracle mysql>= 8.0.0 and <= 8.0.21
netapp oncommand insightall versions
netapp oncommand workflow automationall versions
netapp snapcenterall versions
◈

Sigma Hunt Rules

2
Exact rules name this CVE ID. Product rules name an affected product in their title. Related rules cover techniques used by actors who exploited this CVE. Showing the most relevant matches; the complete related set is on the full drill-down.
producthighOpenCanary - MySQL Login Attempt
producthighUncommon File Creation By Mysql Daemon Process
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Scoring & Timeline

2.3
LOW · CVSS v3.1 · secalert_us@oracle.com
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD20 Jan 2021 · 03:15 PM
CVSS VectorCVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:L/I:N/A:N
SSVC triage · cisa-vulnrichment
Exploitation
none
Automatable
no
Technical impact
partial
SSVC asks the questions that actually drive patch urgency: is it being exploited, can attacks be automated, and how total is the impact.
⚑

Vendor Advisories

3
rhsaRHSA-2021:3811Moderate
rhsaRHSA-2021:3590Moderate
oracle-cpuoracle-cpu-MySQL-Server-8478--CVE-2021-2042
🔗

References & Sources

3
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
https://security.gentoo.org/glsa/202105-27Third Party Advisory
https://security.netapp.com/advisory/ntap-20210219-0003/Third Party Advisory
https://www.oracle.com/security-alerts/cpujan2021.htmlVendor Advisory
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