BlackTreeIndependent security intelligence
← Back to the CVE catalogue
Full vulnerability report · 2021
CVE-2021-2385High confidence

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

Oracle Corporation · MySQL Server

5.0MediumCVSS 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-2021-16844

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: Server: Replication). Supported versions that are affected are 5.7.34 and prior and 8.0.25 and prior. Difficult to exploit 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 as well as unauthorized update, insert or delete access to some of MySQL Server accessible data. CVSS 3.1 Base Score 5.0 (Integrity and Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:N/I:L/A:H).

What

Vulnerability in the MySQL Server product of Oracle MySQL (component: Server: Replication). Supported versions that are affected are 5.7.34 and prior and 8.0.25 and prior. Difficult to exploit 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 as well as unauthorized update, insert or delete access to some of MySQL Server accessible data. CVSS 3.1 Base Score 5.0 (Integrity and Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:N/I:L/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: Server: Replication). Supported versions that are affected are 5.7.34 and prior and 8.0.25 and prior. Difficult to exploit 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 as well as unauthorized update, insert or delete access to some of MySQL Server accessible data. CVSS 3.1 Base Score 5.0 (Integrity and Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:N/I:L/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
High: exploitation depends on specific conditions
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:H/PR:H/UI:N/S:U/C:N/I:L/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.ACHighAttack complexity: Successful exploitation depends on specific conditions outside the attacker's direct control.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.ILowIntegrity impact: A successful attack can cause a limited loss.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-2023-0063Juniper Junos Space: Mehrere Schwachstellen

Ein Angreifer aus dem angrenzenden Netzwerk oder ein entfernter anonymer, authentisierter oder lokaler Angreifer kann mehrere Schwachstellen in Juniper Junos Space ausnutzen, um Sicherheitsmaßnahmen zu umgehen, vertrauliche Informationen offenzulegen, einen Denial-of-Service-Zustand auszulösen, beliebigen Code auszuführen und seine Privilegien zu erweitern.

Official advisory
BSI · German · WID-SEC-W-2024-1591Juniper JUNOS: Mehrere Schwachstellen

Ein Angreifer kann mehrere Schwachstellen in Juniper JUNOS ausnutzen, um einen Denial of Service zu verursachen, Informationen offenzulegen, Privilegien zu erweitern und Sicherheitsmechanismen inklusive zu umgehen.

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

.cve.org/CVERecord?id=CVE-2021-2354 Référence CVE CVE-2021-2356 https://www.cve.org/CVERecord?id=CVE-2021-2356 Référence CVE CVE-2021-2357 https://www.cve.org/CVERecord?id=CVE-2021-2357 Référence CVE CVE-2021-2367 https://www.cve.org/CVERecord?id=CVE-2021-2367 Référence CVE CVE-2021-2370 https://www.cve.org/CVERecord?id=CVE-2021-2370 Référence CVE CVE-2021-2372 https://www.cve.org/CVERecord?id=CVE-2021-2372 Référence CVE CVE-2021-2374 https://www.cve.org/CVERecord?id=CVE-2021-2374 Référence CVE CVE-2021-2383 https://www.cve.org/CVERecord?id=CVE-2021-2383 Référence CVE CVE-2021-2384 https://www.cve.org/CVERecord?id=CVE-2021-2384 Référence CVE CVE-2021-2385 https://www.cve.org/CVERecord?id=CVE-2021-2385 Référence CVE CVE-2021-2387 https://www.cve.org/CVERecord?id=CVE-2021-2387 Référence CVE CVE-2021-2389 https://www.cve.org/CVERecord?id=CVE-2021-2389 Référence CVE CVE-2021-2390 https://www.cve.org/CVERecord?id=CVE-2021-2390 Référence CVE CVE-2021-2399 https://www.cve.org/CVERecord?id=CVE-2021-2399 Référence CVE CVE-2021-2402 https://www.cve.org/CVERecord?id=CVE-2021-2402 Référence CVE CVE-2021-2410 https://www.cve.org/CVERecord?id=CVE-2021-2410 Référence CVE CVE-2021-2411 https://www.cve.org/CVERecord?id=CVE-2021-2411 Référence CVE CVE-2021-2412 https://www.cve.org/CVERecord?id=CVE-2021-2412 Ré

Official advisory
CERT-FR · French · CERTFR-2024-AVI-0575Multiples vulnérabilités dans les produits Juniper Networks

.org/CVERecord?id=CVE-2020-7754 Référence CVE CVE-2020-7774 https://www.cve.org/CVERecord?id=CVE-2020-7774 Référence CVE CVE-2020-8648 https://www.cve.org/CVERecord?id=CVE-2020-8648 Référence CVE CVE-2020-9490 https://www.cve.org/CVERecord?id=CVE-2020-9490 Référence CVE CVE-2021-22543 https://www.cve.org/CVERecord?id=CVE-2021-22543 Référence CVE CVE-2021-2342 https://www.cve.org/CVERecord?id=CVE-2021-2342 Référence CVE CVE-2021-23440 https://www.cve.org/CVERecord?id=CVE-2021-23440 Référence CVE CVE-2021-2356 https://www.cve.org/CVERecord?id=CVE-2021-2356 Référence CVE CVE-2021-2372 https://www.cve.org/CVERecord?id=CVE-2021-2372 Référence CVE CVE-2021-2385 https://www.cve.org/CVERecord?id=CVE-2021-2385 Référence CVE CVE-2021-2389 https://www.cve.org/CVERecord?id=CVE-2021-2389 Référence CVE CVE-2021-2390 https://www.cve.org/CVERecord?id=CVE-2021-2390 Référence CVE CVE-2021-26690 https://www.cve.org/CVERecord?id=CVE-2021-26690 Référence CVE CVE-2021-26691 https://www.cve.org/CVERecord?id=CVE-2021-26691 Référence CVE CVE-2021-27290 https://www.cve.org/CVERecord?id=CVE-2021-27290 Référence CVE CVE-2021-29469 https://www.cve.org/CVERecord?id=CVE-2021-29469 Référence CVE CVE-2021-30641 https://www.cve.org/CVERecord?id=CVE-2021-30641 Référence CVE CVE-2021-31535 https://www.cve.org/CVERecord?id=CVE-2

Official advisory
CERT-FR · French · CERTFR-2023-AVI-0051Multiples vulnérabilités dans les produits Juniper

g/CVERecord?id=CVE-2021-22555 Référence CVE CVE-2021-23017 https://www.cve.org/CVERecord?id=CVE-2021-23017 Référence CVE CVE-2021-2307 https://www.cve.org/CVERecord?id=CVE-2021-2307 Référence CVE CVE-2021-2341 https://www.cve.org/CVERecord?id=CVE-2021-2341 Référence CVE CVE-2021-2342 https://www.cve.org/CVERecord?id=CVE-2021-2342 Référence CVE CVE-2021-2369 https://www.cve.org/CVERecord?id=CVE-2021-2369 Référence CVE CVE-2021-2372 https://www.cve.org/CVERecord?id=CVE-2021-2372 Référence CVE CVE-2021-23840 https://www.cve.org/CVERecord?id=CVE-2021-23840 Référence CVE CVE-2021-23841 https://www.cve.org/CVERecord?id=CVE-2021-23841 Référence CVE CVE-2021-2385 https://www.cve.org/CVERecord?id=CVE-2021-2385 Référence CVE CVE-2021-2388 https://www.cve.org/CVERecord?id=CVE-2021-2388 Référence CVE CVE-2021-2389 https://www.cve.org/CVERecord?id=CVE-2021-2389 Référence CVE CVE-2021-2390 https://www.cve.org/CVERecord?id=CVE-2021-2390 Référence CVE CVE-2021-2432 https://www.cve.org/CVERecord?id=CVE-2021-2432 Référence CVE CVE-2021-25217 https://www.cve.org/CVERecord?id=CVE-2021-25217 Référence CVE CVE-2021-26691 https://www.cve.org/CVERecord?id=CVE-2021-26691 Référence CVE CVE-2021-27219 https://www.cve.org/CVERecord?id=CVE-2021-27219 Référence CVE CVE-2021-27363 https://www.cve.org/CVERecord?id=CVE-2021-

Official advisory
CERT-FR · French · CERTFR-2021-AVI-558Multiples vulnérabilités dans Oracle MySQL

.cve.org/CVERecord?id=CVE-2021-2354 Référence CVE CVE-2021-2356 https://www.cve.org/CVERecord?id=CVE-2021-2356 Référence CVE CVE-2021-2357 https://www.cve.org/CVERecord?id=CVE-2021-2357 Référence CVE CVE-2021-2367 https://www.cve.org/CVERecord?id=CVE-2021-2367 Référence CVE CVE-2021-2370 https://www.cve.org/CVERecord?id=CVE-2021-2370 Référence CVE CVE-2021-2372 https://www.cve.org/CVERecord?id=CVE-2021-2372 Référence CVE CVE-2021-2374 https://www.cve.org/CVERecord?id=CVE-2021-2374 Référence CVE CVE-2021-2383 https://www.cve.org/CVERecord?id=CVE-2021-2383 Référence CVE CVE-2021-2384 https://www.cve.org/CVERecord?id=CVE-2021-2384 Référence CVE CVE-2021-2385 https://www.cve.org/CVERecord?id=CVE-2021-2385 Référence CVE CVE-2021-2387 https://www.cve.org/CVERecord?id=CVE-2021-2387 Référence CVE CVE-2021-2389 https://www.cve.org/CVERecord?id=CVE-2021-2389 Référence CVE CVE-2021-2390 https://www.cve.org/CVERecord?id=CVE-2021-2390 Référence CVE CVE-2021-2399 https://www.cve.org/CVERecord?id=CVE-2021-2399 Référence CVE CVE-2021-2402 https://www.cve.org/CVERecord?id=CVE-2021-2402 Référence CVE CVE-2021-2410 https://www.cve.org/CVERecord?id=CVE-2021-2410 Référence CVE CVE-2021-2411 https://www.cve.org/CVERecord?id=CVE-2021-2411 Référence CVE CVE-2021-2412 https://www.cve.org/CVERecord?id=CVE-2021-2412 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
5.7.34 and prior; 8.0.25 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 20 Jul 2021 · Last source change 26 Sept 2024, 13:55 UTC · CWE not yet assigned

CVE recordCVE.org · 5.1
CVSS sourceCNA
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-2021-16844
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
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-2021-2385 · cve.blacktree.nl