How severe is CVE-2023-21569?

CVE-2023-21569 has a CVSS 3.x base score of 5.5, 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 low.

Is CVE-2023-21569 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (48th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-21569?

CVE-2023-21569 primarily affects Microsoft Azure Devops Server. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2023-21569?

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

When was CVE-2023-21569 published?

CVE-2023-21569 was published on 2023-06-14 and last updated on 2026-06-17.

CVE-2023-21569

CVE-2023-21569 is a medium-severity vulnerability in Microsoft Azure Devops Server with a CVSS 3.x base score of 5.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-94.

Key facts

Severity: Medium (CVSS 3.x base score 5.5)
EPSS exploit prediction: 1% (48th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-94
Affected product: Microsoft Azure Devops Server
Published: 2023-06-14
Last modified: 2026-06-17

Description

Azure DevOps Server Spoofing Vulnerability

Frequently asked questions

What is CVE-2023-21569?: Azure DevOps Server Spoofing Vulnerability
How severe is CVE-2023-21569?: CVE-2023-21569 has a CVSS 3.x base score of 5.5, 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 low.
Is CVE-2023-21569 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (48th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-21569?: CVE-2023-21569 primarily affects Microsoft Azure Devops Server. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2023-21569?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2023-21569 published?: CVE-2023-21569 was published on 2023-06-14 and last updated on 2026-06-17.

References

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-21569

Affected products (3)

cpe:2.3:o:microsoft:azure_devops_server:2020.1.2:-:*:*:*:*:*:*
cpe:2.3:o:microsoft:azure_devops_server:2022:-:*:*:*:*:*:*
cpe:2.3:o:microsoft:azure_devops_server:2022.0.1:-:*:*:*:*:*:*

More vulnerabilities in Microsoft Azure Devops 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…
CVE-2019-1072 — Critical (CVSS 9.8): A remote code execution vulnerability exists when Azure DevOps Server and Team Foundation Server (TFS) improperly…
CVE-2023-33136 — High (CVSS 8.8): Azure DevOps Server Remote Code Execution Vulnerability
CVE-2024-35267 — High (CVSS 7.6): Azure DevOps Server Spoofing Vulnerability
CVE-2024-35266 — High (CVSS 7.6): Azure DevOps Server Spoofing Vulnerability
CVE-2024-20667 — High (CVSS 7.5): Azure DevOps Server Remote Code Execution Vulnerability

All CVEs affecting Microsoft Azure Devops Server →

Other CWE-94 (Code Injection) vulnerabilities

CVE-2026-57624 — Critical (CVSS 10.0): Unauthenticated Remote Code Execution (RCE) in Blocksy Companion Pro <= 2.1.46 versions.
CVE-2026-10134 — Critical (CVSS 10.0): IBM Langflow OSS 1.0.0 through 1.9.3 allows an attacker to read every secret available to the Langflow process, read…
CVE-2026-53576 — Critical (CVSS 10.0): Kestra is an open-source, event-driven orchestration platform. Prior to 1.0.45 and 1.3.21, the authentication filter…
CVE-2026-10561 — Critical (CVSS 10.0): IBM Langflow OSS 1.0.0 through 1.9.3 has an vulnerability due to an improper isolation of Python execution combined…
CVE-2026-25470 — Critical (CVSS 10.0): Improper Control of Generation of Code ('Code Injection') vulnerability in ACPT ACPT (Pro) - Custom Post Types Plugin…
CVE-2026-48836 — Critical (CVSS 10.0): Unauthenticated Remote Code Execution (RCE) in Easy Invoice <= 2.1.19 versions.

Browse all CWE-94 (Code Injection) vulnerabilities →