CVE-2021-35624Network attack vector

High-privileged modification of critical data

Published Oct 20, 2021 · Updated Sep 25, 2024

An unspecified flaw in Oracle MySQL Server 5.7.35 and earlier and 8.0.26 and earlier allows remote authenticated users to modify critical data. Oracle identifies the affected locus only as Server: Security: Privileges and has not published the incorrect privilege operation or attacker-controlled input. Exploitation requires high-privileged network access over the MySQL protocol and permits unauthorized creation, deletion, or modification of server-accessible data.

CVSS severity4.9
Medium
EPSS probability1.43%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

See if you're affected

Explore vulnerability checks for your environment with Hinoki.

Book a demo

Summary

What happened

An unspecified flaw in Oracle MySQL Server 5.7.35 and earlier and 8.0.26 and earlier allows remote authenticated users to modify critical data. Oracle identifies the affected locus only as Server: Security: Privileges and has not published the incorrect privilege operation or attacker-controlled input. Exploitation requires high-privileged network access over the MySQL protocol and permits unauthorized creation, deletion, or modification of server-accessible data.

The record

CVE
CVE-2021-35624
Published
Oct 20, 2021
Updated
Sep 25, 2024
Vendor
Oracle Corporation
Product
MySQL Server
Classifications
T1565
Attack vector
network
Privileges
admin

Timeline

How it unfolded

  1. Oct 20, 2021CVE publishedPublication date reported by the CVE source.
  2. Sep 25, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=5.7.35 and prior
  2. Affected versionversion=8.0.26 and prior

What conditions does exploitation require?

Attack vectornetwork
Required privilegesadmin

What is affected?

Oracle Corporation · MySQL Serverversion=5.7.35 and prior; version=8.0.26 and prior

Published CVSS scores

4.9OracleCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:N
4.0NIST NVDAV:N/AC:L/Au:S/C:N/I:P/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesadmin
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

T1565Data Manipulation

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

See the directory against your own environment.

Your stack

Check the software in your environment

Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.

Book a demo