What is CVE-2021-41365?

CVE-2021-41365 is a high-severity vulnerability in Microsoft Defender For Iot, classified under SQL Injection. CVSS score: 8.8/10. Published 2021-12-15.

How severe is CVE-2021-41365?

High severity. CVSS v3 base score is 8.8 out of 10.

SQL Injection in Microsoft Defender For Iot

CVE-2021-41365

Microsoft Defender for IoT Remote Code Execution Vulnerability

Vulnerability class: SQL Injection

Published 2021-12-15 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.027 (85.4th percentile), scored 2026-09-30.

Low probability of exploitation in the next 30 days, but still tracked. 85th percentile — 85.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.027 · newest: 0.027 · change: 0.000

Affected products

Microsoft Defender For Iot
Microsoft Defender For Iot — versions 22.0.0

Weakness classification (CWE)

CWE-89 — SQL Injection

References

portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-41365 (Patch, Vendor Advisory)
www.zerodayinitiative.com/advisories/ZDI-21-1595/ (Third Party Advisory)

Frequently asked questions

What is CVE-2021-41365?: CVE-2021-41365 is a high-severity vulnerability in Microsoft Defender For Iot, classified under SQL Injection. CVSS score: 8.8/10. Published 2021-12-15.
How severe is CVE-2021-41365?: High severity. CVSS v3 base score is 8.8 out of 10.