How severe is CVE-2021-27082?

CVE-2021-27082 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2021-27082 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 4% (88th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-27082?

CVE-2021-27082 affects Microsoft Quantum Development Kit. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2021-27082?

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-2021-27082 published?

CVE-2021-27082 was published on 2021-03-11 and last updated on 2026-06-17.

CVE-2021-27082

CVE-2021-27082 is a high-severity vulnerability in Microsoft Quantum Development Kit with a CVSS 3.x base score of 7.8. 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 7.8)
CVSS v2: 9.3
EPSS exploit prediction: 4% (88th percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Microsoft Quantum Development Kit
Published: 2021-03-11
Last modified: 2026-06-17

Description

Quantum Development Kit for Visual Studio Code Remote Code Execution Vulnerability

Frequently asked questions

What is CVE-2021-27082?: Quantum Development Kit for Visual Studio Code Remote Code Execution Vulnerability
How severe is CVE-2021-27082?: CVE-2021-27082 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2021-27082 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 4% (88th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-27082?: CVE-2021-27082 affects Microsoft Quantum Development Kit. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2021-27082?: 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-2021-27082 published?: CVE-2021-27082 was published on 2021-03-11 and last updated on 2026-06-17.

References

https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-27082

Affected products (1)

cpe:2.3:a:microsoft:quantum_development_kit:-:*:*:*:*:visual_studio_code:*:*