How severe is CVE-2021-27068?

CVE-2021-27068 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2021-27068 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 54% (99th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-27068?

CVE-2021-27068 affects Microsoft Visual Studio 2019. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2021-27068?

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-2021-27068 published?

CVE-2021-27068 was published on 2021-05-11 and last updated on 2026-06-17.

CVE-2021-27068

CVE-2021-27068 is a high-severity vulnerability in Microsoft Visual Studio 2019 with a CVSS 3.x base score of 8.8. Its EPSS exploit-prediction score of 54% places it in the 99th percentile, indicating an elevated likelihood of exploitation.

Key facts

Severity: High (CVSS 3.x base score 8.8)
CVSS v2: 6.5
EPSS exploit prediction: 54% (99th percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Microsoft Visual Studio 2019
Published: 2021-05-11
Last modified: 2026-06-17

Description

Visual Studio Remote Code Execution Vulnerability

Frequently asked questions

What is CVE-2021-27068?: Visual Studio Remote Code Execution Vulnerability
How severe is CVE-2021-27068?: CVE-2021-27068 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2021-27068 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 54% (99th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-27068?: CVE-2021-27068 affects Microsoft Visual Studio 2019. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2021-27068?: 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-2021-27068 published?: CVE-2021-27068 was published on 2021-05-11 and last updated on 2026-06-17.

References

https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-27068

Affected products (1)

cpe:2.3:a:microsoft:visual_studio_2019:*:*:*:*:*:*:*:*

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