How severe is CVE-2021-27067?

CVE-2021-27067 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-2021-27067 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (84th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-27067?

CVE-2021-27067 primarily affects Microsoft Team Foundation Server. In total, 8 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2021-27067?

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

When was CVE-2021-27067 published?

CVE-2021-27067 was published on 2021-04-13 and last updated on 2026-06-17.

CVE-2021-27067

CVE-2021-27067 is a medium-severity vulnerability in Microsoft Team Foundation Server 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.

Key facts

Severity: Medium (CVSS 3.x base score 6.5)
CVSS v2: 4.0
EPSS exploit prediction: 3% (84th percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Microsoft Team Foundation Server
Published: 2021-04-13
Last modified: 2026-06-17

Description

Azure DevOps Server and Team Foundation Server Information Disclosure Vulnerability

Frequently asked questions

What is CVE-2021-27067?: Azure DevOps Server and Team Foundation Server Information Disclosure Vulnerability
How severe is CVE-2021-27067?: CVE-2021-27067 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-2021-27067 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (84th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-27067?: CVE-2021-27067 primarily affects Microsoft Team Foundation Server. In total, 8 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2021-27067?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2021-27067 published?: CVE-2021-27067 was published on 2021-04-13 and last updated on 2026-06-17.

References

https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-27067

Affected products (8)

cpe:2.3:a:microsoft:team_foundation_server:2015:4.2:*:*:*:*:*:*
cpe:2.3:a:microsoft:team_foundation_server:2017:3.1:*:*:*:*:*:*
cpe:2.3:a:microsoft:team_foundation_server:2018:1.2:*:*:*:*:*:*
cpe:2.3:a:microsoft:team_foundation_server:2018:3.2:*:*:*:*:*:*
cpe:2.3:o:microsoft:azure_devops_server:2019:update1:*:*:*:*:*:*
cpe:2.3:o:microsoft:azure_devops_server:2019:update1.1:*:*:*:*:*:*
cpe:2.3:o:microsoft:azure_devops_server:2019.0.1:-:*:*:*:*:*:*
cpe:2.3:o:microsoft:azure_devops_server:2020:-:*:*:*:*:*:*

More vulnerabilities in Microsoft Team Foundation Server

CVE-2019-1306 — Critical (CVSS 9.8): A remote code execution vulnerability exists when Azure DevOps Server (ADO) and Team Foundation Server (TFS) fail to…
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CVE-2020-0758 — High (CVSS 7.5): An elevation of privilege vulnerability exists when Azure DevOps Server and Team Foundation Services improperly handle…
CVE-2019-0971 — Medium (CVSS 6.5): An information disclosure vulnerability exists when Azure DevOps Server and Microsoft Team Foundation Server do not…
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