How severe is CVE-2021-40352?

CVE-2021-40352 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.

Is CVE-2021-40352 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 10% (95th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-40352?

CVE-2021-40352 affects Open-emr Openemr. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2021-40352?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2021-40352 published?

CVE-2021-40352 was published on 2021-09-01 and last updated on 2026-06-17.

CVE-2021-40352

CVE-2021-40352 is a medium-severity vulnerability in Open-emr Openemr with a CVSS 3.x base score of 6.5. 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-639.

Key facts

Severity: Medium (CVSS 3.x base score 6.5)
CVSS v2: 4.0
EPSS exploit prediction: 10% (95th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-639
Affected product: Open-emr Openemr
Published: 2021-09-01
Last modified: 2026-06-17

Description

OpenEMR 6.0.0 has a pnotes_print.php?noteid= Insecure Direct Object Reference vulnerability via which an attacker can read the messages of all users.

Frequently asked questions

What is CVE-2021-40352?: OpenEMR 6.0.0 has a pnotes_print.php?noteid= Insecure Direct Object Reference vulnerability via which an attacker can read the messages of all users.
How severe is CVE-2021-40352?: CVE-2021-40352 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.
Is CVE-2021-40352 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 10% (95th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-40352?: CVE-2021-40352 affects Open-emr Openemr. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2021-40352?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2021-40352 published?: CVE-2021-40352 was published on 2021-09-01 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:open-emr:openemr:6.0.0:*:*:*:*:*:*:*

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