Security readout for executives and security teams
Plain-English summary
This flaw can let a highly privileged attacker crash or hang a vulnerable MySQL Server, causing a denial of service. It does not indicate data theft or data modification. Business urgency depends on whether affected MySQL 8.0.19 or earlier servers support critical services and whether privileged database access is tightly controlled.
Executive priority
Treat as a moderate availability risk. Prioritize remediation for mission-critical, internet-reachable, or shared-administration MySQL environments. This is less urgent than unauthenticated remote code execution, but database crashes can still create material service disruption.
Technical view
CVE-2020-2893 affects Oracle MySQL Server InnoDB in supported versions 8.0.19 and prior. The CVSS 3.0 score is 4.9 with network attack vector, low complexity, high privileges required, no user interaction, unchanged scope, and high availability impact only.
Likely exposure
Exposure is most relevant for organizations running MySQL Server 8.0.19 or earlier, including packaged or embedded deployments referenced by Linux distribution and NetApp advisories. Risk is lower where privileged MySQL access is limited and network reachability is constrained.
Exploitation context
The provided sources describe the vulnerability as easily exploitable over multiple network protocols, but only by a high-privileged attacker. The source bundle does not show CISA KEV listing or cited evidence of active exploitation in the wild.
Researcher notes
The public description is concise and does not include root-cause details, proof-of-concept information, or exact fixed builds in the supplied bundle. Do not infer confidentiality or integrity impact; the stated impact is complete denial of service only.
Mitigation direction
- Apply Oracle's April 2020 Critical Patch Update guidance for MySQL Server.
- Use Ubuntu, Fedora, Gentoo, or NetApp advisories where those distributions or products apply.
- Upgrade vulnerable MySQL Server deployments beyond 8.0.19 when vendor guidance supports it.
- Restrict MySQL network access to trusted hosts and administrative paths.
- Review and reduce high-privileged database accounts.
Validation and detection
- Inventory MySQL Server versions and identify 8.0.19 or earlier deployments.
- Confirm whether InnoDB is present in exposed MySQL Server instances.
- Check package manager or vendor advisory status for applied security updates.
- Review network paths that allow privileged users to reach MySQL.
- Audit high-privileged MySQL accounts and recent administrative access.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
CVE-2020-2893 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- Medium
- CVSS
- 4.9 (3.0)
- Known Exploited
- No
- Published
Vector: CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
CVSS vector scores
1 official scoreWe collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.
CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H1.23.6Primary CVE scoreVulnerability scoring details
Base CVSS 3.0 score
4.9MediumVector: CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H
Source materials
- CVE List V5 sourceCVE List V5
- https://www.oracle.com/security-alerts/cpuapr2020.htmlCVE reference · x_refsource_MISC
- https://security.netapp.com/advisory/ntap-20200416-0003/CVE reference · x_refsource_CONFIRM
- USN-4350-1CVE reference · vendor-advisory, x_refsource_UBUNTU
- FEDORA-2020-20ac7c92a1CVE reference · vendor-advisory, x_refsource_FEDORA
- FEDORA-2020-136dc82437CVE reference · vendor-advisory, x_refsource_FEDORA
- FEDORA-2020-261c9ddd7cCVE reference · vendor-advisory, x_refsource_FEDORA
- GLSA-202105-27CVE reference · vendor-advisory, x_refsource_GENTOO
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.