What is CVE-2023-21553?

CVE-2023-21553 is a high-severity vulnerability in Microsoft Azure Devops Server, classified under Code Injection. CVSS score: 7.5/10. Published 2023-02-14.

How severe is CVE-2023-21553?

High severity. CVSS v3 base score is 7.5 out of 10.

RCE in Microsoft Azure Devops Server

CVE-2023-21553

Azure DevOps Server Remote Code Execution Vulnerability

Vulnerability class: RCE (Remote Code Execution)

Published 2023-02-14 · last modified 2026-08-19.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.014 (71.6th percentile), scored 2026-09-30.

Low probability of exploitation in the next 30 days, but still tracked. 72nd percentile — 71.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.014 · newest: 0.014 · change: 0.000

Affected products

Microsoft Azure Devops Server — versions 2020.1.2
Microsoft Azure Devops Server 2020.1.2 — versions 2020.1.0

Weakness classification (CWE)

CWE-94 — Code Injection

References

msrc.microsoft.com/update-guide/vulnerability/CVE-2023-21553 (vendor-advisory, Patch, patch, Vendor Advisory)

Frequently asked questions

What is CVE-2023-21553?: CVE-2023-21553 is a high-severity vulnerability in Microsoft Azure Devops Server, classified under Code Injection. CVSS score: 7.5/10. Published 2023-02-14.
How severe is CVE-2023-21553?: High severity. CVSS v3 base score is 7.5 out of 10.