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Full vulnerability report · 2020
CVE-2020-2893High confidence

Vulnerability in the MySQL Server product of Oracle MySQL (component: InnoDB)

Oracle Corporation · MySQL Server

4.9MediumCVSS 3.1
Recommended action
Scheduled

Medium technical severity with no CISA KEV confirmation; remediate through the normal risk-based patch cycle unless local exposure raises the priority.

Fix not verified
Optional official sources

National CERT insights
?CERT means Computer Emergency Response Team; CSIRT is the closely related term Computer Security Incident Response Team.

Select the national-authority views to include. The exact source language is shown on each matched advisory. Your choice is remembered on this device and encoded in the shareable URL.

Official European source

ENISA European Vulnerability Database

Official EUVD identifiers, advisory evidence and known-exploited context. Missing fields are not treated as evidence of low risk.

1 current
ENISA EUVD identifier

EUVD-2020-22686

No EUVD known-exploited evidence

ENISA has published the identifier mapping but no EUVD description has been stored yet.

EUVD state
Present in the current official mapping
Known exploitation
Not present in the current ENISA EUVD known-exploited dataset. This is not proof of no exploitation.
ENISA score
Not supplied in the stored EUVD record
Advisory evidence
No linked advisory details stored yet
Recommended actionScheduled

Medium technical severity with no CISA KEV confirmation; remediate through the normal risk-based patch cycle unless local exposure raises the priority.

Fix not verified
01

What, why and how

Vulnerability in the MySQL Server product of Oracle MySQL (component: InnoDB). Supported versions that are affected are 8.0.19 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).

What

Vulnerability in the MySQL Server product of Oracle MySQL (component: InnoDB). Supported versions that are affected are 8.0.19 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).

Why

The current structured CVE record identifies a security weakness, but the root cause requires confirmation in the linked vendor material.

How

An attacker operating through a network path may attempt exploitation with elevated privileges. If successful, the issue may disrupt the affected service.

What

Vulnerability in the MySQL Server product of Oracle MySQL (component: InnoDB). Supported versions that are affected are 8.0.19 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).

Why

The current structured CVE record identifies a security weakness, but the root cause requires confirmation in the linked vendor material.

How

An attacker operating through a network path may attempt exploitation with elevated privileges. If successful, the issue may disrupt the affected service.

02

Exploit reality and attack path

CVSS severity, EPSS forecast probability, public exploit material and CISA-confirmed exploitation are separate signals.

Observed exploitation
?Confirmed exploitation and public exploit material are separate signals. Attacks can occur without public proof-of-concept or exploit code.
No confirmed evidence

No CISA KEV match was present at the last successful refresh. This means no confirmation from that source, not proof of no exploitation.

Public PoC / exploit material
?Confirmed exploitation and public exploit material are separate signals. Attacks can occur without public proof-of-concept or exploit code.
None recorded

No exploit-tagged reference or CISA SSVC proof-of-concept state is currently recorded. Research may still exist outside the structured feeds.

Likely attack path
a network path → vulnerable operation → disrupt the affected service
Attack surface
Network
Privileges required
High: elevated access is required
User interaction
None
Attack complexity
Low: no specialised conditions are recorded
Security boundary
Unchanged: impact remains within the vulnerable component's security authority
Weakness
?CWE means Common Weakness Enumeration.
CWE not yet assigned
CVSS vector
?CVSS means Common Vulnerability Scoring System. The vector records the metric values used to calculate technical severity.
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H

Common Vulnerability Scoring System 3.1: the compact vector below is decoded into plain language.

AVNetworkAttack vector: The vulnerable component can be reached over a network.ACLowAttack complexity: No specialised conditions are required beyond attacker-controlled input.PRHighPrivileges required: The attacker needs elevated or administrative privileges.UINoneUser interaction: No action by another user is required.SUnchangedScope: The security impact remains within the vulnerable component's authority.CNoneConfidentiality impact: No direct loss is represented by this metric.INoneIntegrity impact: No direct loss is represented by this metric.AHighAvailability impact: A successful attack can cause a major loss.
Post-exploitation / living off the land
No specific living-off-the-land technique is confirmed in the structured sources. Monitor normal administration tools for activity inconsistent with the affected service's baseline.
NetworkDenial of service
A

Official authority intelligence

Only matched European and national findings are included. Language selectors and unavailable sources are omitted.

BSI · German · WID-SEC-W-2023-1049Oracle MySQL: Mehrere Schwachstellen

Ein entfernter, anonymer oder authentisierter Angreifer kann mehrere Schwachstellen in Oracle MySQL ausnutzen, um die Verfügbarkeit, Vertraulichkeit und Integrität zu gefährden.

Official advisory
CERT-FR · French · CERTFR-2025-AVI-0756Multiples vulnérabilités dans les produits VMware

ve.org/CVERecord?id=CVE-2020-2780 Référence CVE CVE-2020-2790 https://www.cve.org/CVERecord?id=CVE-2020-2790 Référence CVE CVE-2020-2804 https://www.cve.org/CVERecord?id=CVE-2020-2804 Référence CVE CVE-2020-2806 https://www.cve.org/CVERecord?id=CVE-2020-2806 Référence CVE CVE-2020-2812 https://www.cve.org/CVERecord?id=CVE-2020-2812 Référence CVE CVE-2020-2814 https://www.cve.org/CVERecord?id=CVE-2020-2814 Référence CVE CVE-2020-28500 https://www.cve.org/CVERecord?id=CVE-2020-28500 Référence CVE CVE-2020-2853 https://www.cve.org/CVERecord?id=CVE-2020-2853 Référence CVE CVE-2020-2892 https://www.cve.org/CVERecord?id=CVE-2020-2892 Référence CVE CVE-2020-2893 https://www.cve.org/CVERecord?id=CVE-2020-2893 Référence CVE CVE-2020-2895 https://www.cve.org/CVERecord?id=CVE-2020-2895 Référence CVE CVE-2020-2896 https://www.cve.org/CVERecord?id=CVE-2020-2896 Référence CVE CVE-2020-2897 https://www.cve.org/CVERecord?id=CVE-2020-2897 Référence CVE CVE-2020-2901 https://www.cve.org/CVERecord?id=CVE-2020-2901 Référence CVE CVE-2020-2903 https://www.cve.org/CVERecord?id=CVE-2020-2903 Référence CVE CVE-2020-2904 https://www.cve.org/CVERecord?id=CVE-2020-2904 Référence CVE CVE-2020-2921 https://www.cve.org/CVERecord?id=CVE-2020-2921 Référence CVE CVE-2020-2922 https://www.cve.org/CVERecord?id=CVE-2020-2922 Ré

Official advisory
CERT-FR · French · CERTFR-2020-AVI-218Multiples vulnérabilités dans Oracle MySQL

.cve.org/CVERecord?id=CVE-2020-2780 Référence CVE CVE-2020-2790 https://www.cve.org/CVERecord?id=CVE-2020-2790 Référence CVE CVE-2020-2804 https://www.cve.org/CVERecord?id=CVE-2020-2804 Référence CVE CVE-2020-2806 https://www.cve.org/CVERecord?id=CVE-2020-2806 Référence CVE CVE-2020-2812 https://www.cve.org/CVERecord?id=CVE-2020-2812 Référence CVE CVE-2020-2814 https://www.cve.org/CVERecord?id=CVE-2020-2814 Référence CVE CVE-2020-2853 https://www.cve.org/CVERecord?id=CVE-2020-2853 Référence CVE CVE-2020-2875 https://www.cve.org/CVERecord?id=CVE-2020-2875 Référence CVE CVE-2020-2892 https://www.cve.org/CVERecord?id=CVE-2020-2892 Référence CVE CVE-2020-2893 https://www.cve.org/CVERecord?id=CVE-2020-2893 Référence CVE CVE-2020-2895 https://www.cve.org/CVERecord?id=CVE-2020-2895 Référence CVE CVE-2020-2896 https://www.cve.org/CVERecord?id=CVE-2020-2896 Référence CVE CVE-2020-2897 https://www.cve.org/CVERecord?id=CVE-2020-2897 Référence CVE CVE-2020-2898 https://www.cve.org/CVERecord?id=CVE-2020-2898 Référence CVE CVE-2020-2901 https://www.cve.org/CVERecord?id=CVE-2020-2901 Référence CVE CVE-2020-2903 https://www.cve.org/CVERecord?id=CVE-2020-2903 Référence CVE CVE-2020-2904 https://www.cve.org/CVERecord?id=CVE-2020-2904 Référence CVE CVE-2020-2921 https://www.cve.org/CVERecord?id=CVE-2020-2921 Ré

Official advisory
03

Patch and workaround

Operational remediation based on structured source evidence.

Status
?Patch availability is based on structured fixed-version fields and authoritative update references. If no fix is verified, check the vendor advisory before making a change.
Fix not verified
Affected
8.0.19 and prior
Fixed
No fixed version is explicitly recorded in the structured CVE data.
Action
No verified patch reference is present in the current structured sources. Check the vendor advisory before making a change.
Workaround
No verified workaround is recorded. If business-safe, reduce exposure to the affected interface and allow only trusted sources until authoritative guidance is available.
04

Evidence and provenance

Published 15 Apr 2020 · Last source change 27 Sept 2024, 18:53 UTC · CWE not yet assigned

CVE recordCVE.org · 5.1
CVSS sourceNIST NVD
EPSS source
?The date BlackTree first stored a score for this CVE from the daily FIRST EPSS feed.
FIRST · tracked since 2026-08-14
European sourceENISA EUVD · EUVD-2020-22686
Product sourceCNA
Remediation sourceCVE/CNA references
CWE sourceUnavailable
NVD statusNVD modified after enrichment

Missing structured fields: CWE classification. Missing data is not evidence of low risk; review the primary advisory.

Material change intelligence

What changed after publication

View recent updates →

No material field changes have been recorded since change tracking began. Routine source refreshes and cosmetic edits are intentionally excluded.

Material fields only · duplicate refreshes suppressed · history retained for the configured operational retention period
CVE published
ENISA EUVD · EUVD-2020-22686↗CVE authority or vendor reference↗Official CVE record (CNA and ADP data)↗NVD record↗
Technical terms and abbreviations used in this report
CVE
Common Vulnerabilities and Exposures: the public identifier for one disclosed vulnerability.
CVSS
Common Vulnerability Scoring System: a technical severity framework; it is not patching priority by itself.
EPSS
Exploit Prediction Scoring System: FIRST's estimate of the probability that exploitation activity will be observed in the next 30 days; it is a forecast, not confirmation.
CWE
Common Weakness Enumeration: the standard category describing the underlying software or hardware weakness.
CNA
CVE Numbering Authority: an organisation authorised to assign and publish CVE records.
CISA ADP
Cybersecurity and Infrastructure Security Agency Authorized Data Publisher: structured enrichment added to a CVE record.
NVD
National Vulnerability Database: NIST's enrichment service for CVE records.
CERT / CSIRT
A computer security incident response team that publishes warnings or coordinates incident response.
PoC
Proof of concept: public material that demonstrates or helps reproduce exploitation.
CSAF
Common Security Advisory Framework: a machine-readable format for security advisories.
LoTL
Living off the land: abuse of legitimate tools or system functions during an attack.
Free version - for non-commercial use only.CVE-2020-2893 · cve.blacktree.nl