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CVE Record

CVE-2020-2774: Vulnerability in the MySQL Server product of Oracle MySQL (component: Server: Security: Privileges).

Vulnerability in the MySQL Server product of Oracle MySQL (component: Server: Security: Privileges). Supported versions that are affected are 8.0.18 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 3.0 Base Score 4.9 (Availability impacts). CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H).

MediumCVSS 4.9Not KEV-listedUpdated
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Glexia's TakeAutomated analysismoderate

Security readout for executives and security teams

Plain-English summary

CVE-2020-2774 can let an already highly privileged attacker crash or hang MySQL Server. The business risk is service interruption, not data theft, based on the supplied CVSS impact. Exposure is mainly older MySQL 8.0 deployments that still run version 8.0.18 or earlier.

Executive priority

Treat this as a moderate availability risk. Prioritize patching internet-exposed or shared business-critical MySQL services first, especially where privileged database access is common across operations, automation, or application teams.

Technical view

Oracle describes a MySQL Server Security: Privileges flaw affecting supported versions 8.0.18 and prior. It is network reachable, low complexity, requires high privileges, needs no user interaction, and has availability-only impact with CVSS 3.0 score 4.9.

Likely exposure

Systems running Oracle MySQL Server 8.0.18 or prior are the stated exposure. Risk is higher where privileged database accounts are broadly issued and MySQL is reachable over network paths by administrators, applications, or service accounts.

Exploitation context

The source bundle does not indicate CISA KEV listing or active exploitation. The attacker must already have high privileges and network access via supported MySQL protocols. Successful exploitation can cause a hang or repeatable crash, resulting in complete denial of service.

Researcher notes

The supplied data supports availability-only impact and high-privilege preconditions. No CWE, exploit detail, or active-exploitation evidence is provided. Avoid assuming confidentiality or integrity impact unless a vendor advisory adds product-specific context.

Mitigation direction

  • Apply Oracle MySQL updates from the April 2020 Critical Patch Update or later vendor guidance.
  • Review NetApp, Fedora, and Gentoo advisories if those distributions or appliances are in scope.
  • Retire or upgrade MySQL Server 8.0.18 and earlier instances.
  • Restrict MySQL network reachability to required hosts only.
  • Review and reduce high-privilege database accounts.

Validation and detection

  • Inventory MySQL Server versions and flag 8.0.18 or earlier.
  • Confirm patched Oracle, Fedora, Gentoo, or vendor-provided packages are deployed.
  • Identify privileged MySQL accounts with network access.
  • Check monitoring for repeated MySQL crashes or unexplained hangs.
  • Review NetApp advisory applicability for deployed NetApp products.
Prepared
Confidence
high
Sources
8

Public sources used

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

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.

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CVE-2020-2774 mapping review

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Vulnerability profileCVE Program record
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

Official CVE source material

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.

1CVSS vectors
0Timeline events
0ADP providers
7Source links

CVSS vector scores

1 official score

We 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.

ScoreVersionSeverityVectorExploitImpactSource
4.9CVSS 3.0MediumCVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H1.23.6Primary CVE score

Vulnerability scoring details

Base CVSS 3.0 score

4.9Medium
CVSS 3.0 vector shape for CVE-2020-2774Attack VectorAttack ComplexityPrivileges RequiredUser InteractionScopeConfidentiality ImpactIntegrity ImpactAvailability Impact

Vector: CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H

Attack Vector
NetworkAdjacentLocalPhysical
Attack Complexity
LowHigh
Privileges Required
NoneLowHigh
User Interaction
NoneRequired
Scope
ChangedUnchanged
Confidentiality Impact
HighLowNone
Integrity Impact
HighLowNone
Availability Impact
HighLowNone

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
Oracle CorporationMySQL Server8.0.18 and priorListed
Weakness

CWE details

No CWE listed

CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.