How severe is CVE-2021-36946?

CVE-2021-36946 has a CVSS 3.x base score of 5.4, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.

Is CVE-2021-36946 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (62nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-36946?

CVE-2021-36946 primarily affects Microsoft Dynamics 365 Business Central. In total, 5 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2021-36946?

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

When was CVE-2021-36946 published?

CVE-2021-36946 was published on 2021-08-12 and last updated on 2026-08-10.

CVE-2021-36946

CVE-2021-36946 is a medium-severity vulnerability in Microsoft Dynamics 365 Business Central with a CVSS 3.x base score of 5.4. 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-79.

Key facts

Severity: Medium (CVSS 3.x base score 5.4)
CVSS v2: 3.5
EPSS exploit prediction: 1% (62nd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-79
Affected product: Microsoft Dynamics 365 Business Central
Published: 2021-08-12
Last modified: 2026-08-10

Description

Microsoft Dynamics Business Central Cross-site Scripting Vulnerability

Frequently asked questions

What is CVE-2021-36946?: Microsoft Dynamics Business Central Cross-site Scripting Vulnerability
How severe is CVE-2021-36946?: CVE-2021-36946 has a CVSS 3.x base score of 5.4, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.
Is CVE-2021-36946 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (62nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-36946?: CVE-2021-36946 primarily affects Microsoft Dynamics 365 Business Central. In total, 5 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2021-36946?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2021-36946 published?: CVE-2021-36946 was published on 2021-08-12 and last updated on 2026-08-10.

References

Affected products (5)

cpe:2.3:a:microsoft:dynamics_365_business_central:2019:spring_update:*:*:*:*:*:*
cpe:2.3:a:microsoft:dynamics_365_business_central:2020:release_wave_1:*:*:*:*:*:*
cpe:2.3:a:microsoft:dynamics_365_business_central:2020:release_wave_2:*:*:*:*:*:*
cpe:2.3:a:microsoft:dynamics_nav:2017:*:*:*:*:*:*:*
cpe:2.3:a:microsoft:dynamics_nav:2018:*:*:*:*:*:*:*

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