How severe is CVE-2021-31984?

CVE-2021-31984 has a CVSS 3.x base score of 7.6, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and user interaction. Impact on confidentiality is low, integrity high, and availability none.

Is CVE-2021-31984 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (76th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-31984?

CVE-2021-31984 affects Microsoft Power Bi Report Server. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2021-31984?

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

When was CVE-2021-31984 published?

CVE-2021-31984 was published on 2021-07-14 and last updated on 2026-06-17.

CVE-2021-31984

CVE-2021-31984 is a high-severity vulnerability in Microsoft Power Bi Report Server with a CVSS 3.x base score of 7.6. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Severity: High (CVSS 3.x base score 7.6)
CVSS v2: 6.8
EPSS exploit prediction: 2% (76th percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Microsoft Power Bi Report Server
Published: 2021-07-14
Last modified: 2026-06-17

Description

Power BI Remote Code Execution Vulnerability

Frequently asked questions

What is CVE-2021-31984?: Power BI Remote Code Execution Vulnerability
How severe is CVE-2021-31984?: CVE-2021-31984 has a CVSS 3.x base score of 7.6, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and user interaction. Impact on confidentiality is low, integrity high, and availability none.
Is CVE-2021-31984 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (76th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-31984?: CVE-2021-31984 affects Microsoft Power Bi Report Server. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2021-31984?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2021-31984 published?: CVE-2021-31984 was published on 2021-07-14 and last updated on 2026-06-17.

References

https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-31984

Affected products (1)

cpe:2.3:a:microsoft:power_bi_report_server:-:*:*:*:*:*:*:*

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