CVE-2021-2021
high-risk
Published 2021-01-20
Vulnerability in the MySQL Server product of Oracle MySQL (component: Server: Optimizer). Supported versions that are affected are 8.0.22 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. CVSS 3.1 Base Score 4.9 (Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H).
Do I need to act?
!
51.8% chance of exploitation in next 30 days
EPSS score — higher than 48% of all CVEs
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Not on CISA KEV list
No confirmed active exploitation reported to CISA
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Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
4
CVSS 4.9/10
Medium
NETWORK
/ LOW complexity
Affected Products (6)
Affected Vendors
References (10)
Third Party Advisory
https://security.gentoo.org/glsa/202105-27
Third Party Advisory
https://security.netapp.com/advisory/ntap-20210219-0003/
Vendor Advisory
https://www.oracle.com/security-alerts/cpujan2021.html
Third Party Advisory
https://security.gentoo.org/glsa/202105-27
Third Party Advisory
https://security.netapp.com/advisory/ntap-20210219-0003/
Vendor Advisory
https://www.oracle.com/security-alerts/cpujan2021.html
51
/ 100
high-risk
Severity
20/34 · Moderate
Exploitability
18/34 · Moderate
Exposure
13/34 · Low