Security readout for executives and security teams
CVE-2016-3521 is an old MySQL and MariaDB availability flaw. A remote user with valid database authentication could affect server availability. The public record does not describe data theft or privilege escalation, but database downtime can still disrupt applications and operations. Exposure is most likely in legacy MySQL or MariaDB deployments that still run the listed versions or older distribution packages. Risk is higher where database logins are issued broadly or remote database access is allowed from less-trusted networks. Prioritize remediation where legacy MySQL or MariaDB instances support business-critical applications or accept remote authenticated access. Treat fully patched, tightly isolated systems as lower urgency, but confirm version status rather than assuming age-based fixes are present. Mitigation focus: Upgrade MySQL or MariaDB beyond the affected versions listed in the CVE.; Apply relevant vendor or Linux distribution security updates.; Limit database network access to trusted application hosts and administrators..
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
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ATT&CK lookup starting points
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CVE-2016-3521 mapping review
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Open ATT&CK lookup- Severity
- Unknown
- CVSS
- Not scored
- Known Exploited
- No
- Published
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 and timeline data
No CVSS vectors or timeline events were available in the normalized CVE source material.
Source materials
- CVE List V5 sourceCVE List V5
- https://mariadb.com/kb/en/mariadb/mariadb-10026-release-notes/CVE reference · x_refsource_CONFIRM
- https://mariadb.com/kb/en/mariadb/mariadb-10115-release-notes/CVE reference · x_refsource_CONFIRM
- https://mariadb.com/kb/en/mariadb/mariadb-5550-release-notes/CVE reference · x_refsource_CONFIRM
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.