How severe is CVE-2022-40314?

CVE-2022-40314 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2022-40314 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (72nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2022-40314?

CVE-2022-40314 affects Moodle. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2022-40314?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.

When was CVE-2022-40314 published?

CVE-2022-40314 was published on 2022-09-30 and last updated on 2026-06-17.

CVE-2022-40314

CVE-2022-40314 is a critical-severity vulnerability in Moodle with a CVSS 3.x base score of 9.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-502.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
EPSS exploit prediction: 2% (72nd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-502
Affected product: Moodle
Published: 2022-09-30
Last modified: 2026-06-17

Description

A remote code execution risk when restoring backup files originating from Moodle 1.9 was identified.

Frequently asked questions

What is CVE-2022-40314?: A remote code execution risk when restoring backup files originating from Moodle 1.9 was identified.
How severe is CVE-2022-40314?: CVE-2022-40314 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2022-40314 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (72nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2022-40314?: CVE-2022-40314 affects Moodle. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2022-40314?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
When was CVE-2022-40314 published?: CVE-2022-40314 was published on 2022-09-30 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:moodle:moodle:*:*:*:*:*:*:*:*

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