CVE-2012-3398: n/a vulnerability

CVE-2012-3398: Algorithmic complexity vulnerability in Moodle 1.9.x before 1.9.19, 2.0.x before 2.0.10, 2.1.x before 2.1.7...

Algorithmic complexity vulnerability in Moodle 1.9.x before 1.9.19, 2.0.x before 2.0.10, 2.1.x before 2.1.7, and 2.2.x before 2.2.4 allows remote authenticated users to cause a denial of service (CPU consumption) by using the advanced-search feature on a database activity that has many records.

UnknownCVSS not scoredNot KEV-listedUpdatedAug 6, 2024, 20:05 UTC (UTC+00:00)

Security readout for executives and security teams

This CVE affects older Moodle installations. A logged-in user could make Moodle consume excessive CPU by using advanced search against a database activity containing many records. The business impact is availability loss, not data theft, based on the provided sources. Exposure is likely limited to organizations still running the affected legacy Moodle branches and allowing authenticated users to access large database activities with advanced search. Treat as a targeted availability risk for legacy Moodle. Patch or retire affected instances, especially internet-facing learning portals with many users and large database activities. Mitigation focus: Upgrade Moodle to 1.9.19, 2.0.10, 2.1.7, 2.2.4, or later supported releases.; Prioritize legacy Moodle instances that host large database activities.; If upgrade is delayed, review Moodle vendor guidance for safe compensating controls..

Prepared: Jun 24, 2026, 12:34 UTC (UTC+00:00)

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

Potential ATT&CK relevance

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Database behavior lookup

The CVE wording references database injection or access, so collection and exfiltration review may help. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.

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CVE-2012-3398 mapping review

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Vulnerability profileCVE Program record

Severity: Unknown
CVSS: Not scored
Known Exploited: No
Published: Jul 23, 2012, 21:00 UTC (UTC+00:00)

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

2Source links

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
moodle-database-dos(76964)CVE reference · vdb-entry, x_refsource_XF

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus

n/an/an/aListed

Weakness

CWE details

No CWE listed

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