HOMEVULNERABILITIESCVE-2021-2042
LOW

CVE-2021-2042

NVD-CWE-noinfoPublished: January 20, 2021· Updated: Jun 17, 2026

2.3
CVSS v3.1

Official Description

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).

NVD Source

Technical Analysis

CVE-2021-2042 requires local access, meaning attackers must already have a foothold on the target system.

Exploitation requires high privileges, which limits the exposure to scenarios where an attacker has already gained initial access.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorLocal
Attack ComplexityLow
Privileges Req.High
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityLow
IntegrityNone
AvailabilityNone
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:L/I:N/A:N

Affected Vendors & Products

netapp3 product(s)
oncommand insightoncommand workflow automationsnapcenter
Oracle1 product(s)
mysql
Source: NVD CPE · 4 total CPE entries

Exploit & PoC Resources

NO KNOWN EXPLOITNo public exploit confirmed at this time
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
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Official Patches & Advisories

ADVISORYhttps://security.gentoo.org/glsa/202105-27
ADVISORYhttps://security.netapp.com/advisory/ntap-20210219-0003/
ADVISORYhttps://www.oracle.com/security-alerts/cpujan2021.html
ADVISORYhttps://security.gentoo.org/glsa/202105-27
ADVISORYhttps://security.netapp.com/advisory/ntap-20210219-0003/
ADVISORYhttps://www.oracle.com/security-alerts/cpujan2021.html

All References (6)

→
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
→
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

Quick Facts

CVE IDCVE-2021-2042
CVSS Score2.3 / 10
SeverityLOW
WeaknessNVD-CWE-noinfo
CISA KEVNo
Affected2 vendor(s)
PublishedJan 20, 2021

Related CVEs (NVD-CWE-noinfo)

CVE-2008-4873
10.0
CVE-2024-44148
10.0
CVE-2023-40455
10.0
CVE-2023-38586
10.0
CVE-2024-44146
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CVE-2017-3623
10.0

Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2021-2042 in threat intel feeds
  • →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWatch. CVE data is provided under the NVD usage policy.
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