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CVE Record

CVE-2021-46665: MariaDB through 10.5.9 allows a sql_parse.cc application crash because of incorrect used_tables expectations.

MariaDB through 10.5.9 allows a sql_parse.cc application crash because of incorrect used_tables expectations.

UnknownCVSS not scoredNot KEV-listedUpdated
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Glexia's TakeAutomated analysismoderate

Security readout for executives and security teams

Plain-English summary

This issue can crash a MariaDB database application in versions through 10.5.9. The public record does not provide CVSS, CWE, exploit details, or a detailed fix description. Treat it mainly as an availability risk until vendor advisories confirm exposure and remediation for your environment.

Executive priority

Handle this as a scheduled but real availability fix for MariaDB-dependent services. Escalate priority if affected databases support critical customer, billing, authentication, or operational workflows, or if they are hard to restart safely.

Technical view

CVE-2021-46665 describes an application crash in MariaDB through 10.5.9 tied to sql_parse.cc and incorrect used_tables expectations. The source bundle identifies MariaDB, Fedora advisories, MariaDB security guidance, and a NetApp advisory, but does not include exploit mechanics or scoring.

Likely exposure

Likely exposure is limited to systems running MariaDB through 10.5.9 or downstream packages that included those versions. NetApp and Fedora references indicate vendor/package-level relevance, but the bundle does not identify specific NetApp affected products.

Exploitation context

The bundle does not show active exploitation, and KEV status is false. Public evidence supports a crash condition, not data theft or privilege escalation. Exploitability requirements are not described in the provided sources.

Researcher notes

The evidence is sparse: no CVSS vector, CWE, proof-of-concept status, or detailed trigger conditions are included. Analysis should stay anchored to version exposure, vendor advisory status, and crash impact rather than broader compromise claims.

Mitigation direction

  • Inventory MariaDB deployments and identify versions through 10.5.9.
  • Check MariaDB security guidance for the applicable fixed release or package update.
  • Review Fedora advisories if using Fedora-packaged MariaDB.
  • Review NetApp advisory applicability before assuming product exposure.
  • Apply vendor-provided updates after normal change testing.
  • Monitor affected databases for unexplained crash or restart patterns.

Validation and detection

  • Confirm installed MariaDB server version on all database hosts.
  • Map MariaDB packages to distribution or appliance vendor advisories.
  • Check whether any exposed service still runs through version 10.5.9.
  • Review database logs for crashes matching the advisory timeframe.
  • Document remediation status for each database or packaged dependency.
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

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

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CVE-2021-46665 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.