Security readout for executives and security teams
Plain-English summary
This Oracle MySQL Server issue can let an already high-privileged network user disrupt the database or change some data. The main business risk is database outage, with limited integrity impact. It is not listed as known exploited in CISA KEV in the provided bundle.
Executive priority
Treat as a scheduled but important database maintenance item. Prioritize exposed or business-critical MySQL servers because the likely impact is service disruption and possible limited data modification, even though exploitation requires high privileges.
Technical view
CVE-2022-21528 affects MySQL Server 8.0.29 and prior, specifically Server: Optimizer. The CVSS 3.1 vector is AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:L/A:H, indicating network reachability, low attack complexity, high privileges required, no confidentiality impact, low integrity impact, and high availability impact.
Likely exposure
Exposure is most relevant for MySQL Server 8.0.29 and earlier where high-privileged users or service accounts can connect over network protocols. Internet-facing database access increases operational risk, but the high privilege requirement narrows likely attackers to compromised privileged credentials or trusted insiders.
Exploitation context
The provided sources do not show active exploitation, public exploit availability, or KEV listing. The vulnerability is described as easily exploitable once a high-privileged attacker has network access, with outcomes including hangs, repeatable crashes, and limited unauthorized data modification.
Researcher notes
Key constraints are high privileges and no confidentiality impact in the CVSS vector. The affected component is the optimizer, but the provided bundle does not include root cause detail, CWE mapping, proof of concept, or specific fixed version beyond the Oracle CPU context.
Mitigation direction
- Apply Oracle's July 2022 CPU or a later supported MySQL Server update.
- Confirm packaged MySQL updates from Fedora or other operating system vendors are installed.
- Review NetApp guidance if MySQL is present through affected NetApp products.
- Restrict network access to MySQL management and application paths.
- Reduce and audit high-privileged MySQL accounts and service credentials.
Validation and detection
- Inventory MySQL Server deployments and record exact 8.0 versions.
- Flag any MySQL Server instance running 8.0.29 or earlier.
- Verify vendor patch levels from Oracle, Fedora, NetApp, or distribution sources.
- Review whether high-privileged accounts can connect remotely.
- Check monitoring for unexplained MySQL hangs or repeatable crashes.
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-2022-21528 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
- 5.5 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:L/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:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:L/A:H1.24.2Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
5.5MediumVector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:L/A:H
Source materials
- CVE List V5 sourceCVE List V5
- https://www.oracle.com/security-alerts/cpujul2022.htmlCVE reference · x_refsource_MISC
- https://security.netapp.com/advisory/ntap-20220729-0004/CVE reference · x_refsource_CONFIRM
- FEDORA-2022-9178229cd7CVE reference · vendor-advisory, x_refsource_FEDORA
- FEDORA-2022-7197cef91fCVE reference · vendor-advisory, x_refsource_FEDORA
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.