How severe is CVE-2020-17145?

CVE-2020-17145 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-2020-17145 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (69th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2020-17145?

CVE-2020-17145 primarily affects Microsoft Team Foundation Server. In total, 7 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2020-17145?

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

When was CVE-2020-17145 published?

CVE-2020-17145 was published on 2020-12-10 and last updated on 2026-06-17.

CVE-2020-17145

CVE-2020-17145 is a medium-severity vulnerability in Microsoft Team Foundation Server 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.

Key facts

Severity: Medium (CVSS 3.x base score 5.4)
CVSS v2: 4.9
EPSS exploit prediction: 1% (69th percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Microsoft Team Foundation Server
Published: 2020-12-10
Last modified: 2026-06-17

Description

Azure DevOps Server and Team Foundation Services Spoofing Vulnerability

Frequently asked questions

What is CVE-2020-17145?: Azure DevOps Server and Team Foundation Services Spoofing Vulnerability
How severe is CVE-2020-17145?: CVE-2020-17145 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-2020-17145 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (69th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2020-17145?: CVE-2020-17145 primarily affects Microsoft Team Foundation Server. In total, 7 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2020-17145?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2020-17145 published?: CVE-2020-17145 was published on 2020-12-10 and last updated on 2026-06-17.

References

Affected products (7)

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:update1.1:*:*:*:*:*:*
cpe:2.3:o:microsoft:azure_devops_server:2019.0.1:-:*:*:*:*:*:*
cpe:2.3:o:microsoft:azure_devops_server:2020:-:*:*:*:*:*:*

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