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CVE Record

CVE-2021-46663: MariaDB through 10.5.13 allows a ha_maria::extra application crash via certain SELECT statements.

MariaDB through 10.5.13 allows a ha_maria::extra application crash via certain SELECT statements.

UnknownCVSS not scoredNot KEV-listedUpdated
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Glexia's TakeAutomated analysisunknown

Security readout for executives and security teams

Plain-English summary

CVE-2021-46663 is a MariaDB crash issue. MariaDB through 10.5.13 can crash when handling certain SELECT statements. The disclosed impact is availability, not data theft or privilege escalation. Business urgency depends on whether untrusted users or applications can submit SQL to affected MariaDB instances.

Executive priority

Treat as an availability risk requiring inventory and normal patch management attention. Escalate priority for customer-facing, multi-tenant, or business-critical databases where users can influence SQL generation. The supplied evidence does not support emergency active-exploitation handling.

Technical view

The record describes an application crash in ha_maria::extra triggered by certain SELECT statements in MariaDB through 10.5.13. The bundle provides no CVSS, CWE, or detailed affected CPEs. Public references include MariaDB Jira, MariaDB security page, NetApp advisory, and Fedora package advisories.

Likely exposure

Exposure is most likely where MariaDB through 10.5.13 is deployed directly or embedded in vendor products. Internet exposure is not established by the sources. Risk rises if application users, tenants, or compromised accounts can cause crafted SELECT queries to reach MariaDB.

Exploitation context

The provided sources do not show CISA KEV listing or active exploitation. The described trigger is certain SELECT statements causing a crash. No exploit maturity, authentication requirements, or remote reachability details are supplied in the bundle.

Researcher notes

The source bundle is sparse: no CVSS vector, CWE, CPE list, proof-of-concept status, or fixed version is included. Analysis should stay anchored to the documented MariaDB through 10.5.13 crash in ha_maria::extra and vendor advisories for platform-specific remediation.

Mitigation direction

  • Inventory MariaDB deployments and identify versions through 10.5.13.
  • Check MariaDB, Fedora, NetApp, and appliance vendor guidance for patched packages.
  • Prioritize systems where untrusted users can submit SQL or query-building input.
  • Limit unnecessary database access and ad hoc query privileges where operationally feasible.
  • Monitor database crash loops and availability alerts on affected systems.

Validation and detection

  • Confirm MariaDB server versions from asset inventory or package management records.
  • Map applications and appliances that embed or depend on MariaDB.
  • Review vendor advisories for the exact fixed package applicable to each platform.
  • Check logs for unexplained MariaDB crashes during SELECT query handling.
  • Verify post-remediation versions against the relevant vendor advisory.
Prepared
Confidence
medium
Sources
8

Public sources used

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

Conservative CVE-to-ATT&CK context

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CVE-2021-46663 mapping review

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Vulnerability profileCVE Program record
Severity
Unknown
CVSS
Not scored
Known Exploited
No
Published
Official CVE source material

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.

0CVSS vectors
0Timeline events
0ADP providers
7Source links

CVSS and timeline data

No CVSS vectors or timeline events were available in the normalized CVE source material.

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
n/an/an/aListed
Weakness

CWE details

No CWE listed

CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.