What is CVE-2021-42303?

CVE-2021-42303 is a medium-severity vulnerability in Microsoft Azure Real Time Operating System, classified under Improper Privilege Management. CVSS score: 6.6/10. Published 2021-11-10.

How severe is CVE-2021-42303?

Medium severity. CVSS v3 base score is 6.6 out of 10.

Is CVE-2021-42303 known to be exploited?

3 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Privilege escalation in Microsoft Azure Real Time Operating System

CVE-2021-42303

Azure RTOS Elevation of Privilege Vulnerability

Vulnerability class: Privilege Escalation

EPSS: 0.007 (49.4th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.6 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:H.

Affected products

Microsoft Azure Real Time Operating System — versions 6.0.0
Microsoft Azure_real_time_operating_system

Weakness classification (CWE)

CWE-269 — Improper Privilege Management

Public proof-of-concept exploits

References

secure@microsoft.com (Patch, x_refsource_MISC, Vendor Advisory)

Frequently asked questions

What is CVE-2021-42303?: CVE-2021-42303 is a medium-severity vulnerability in Microsoft Azure Real Time Operating System, classified under Improper Privilege Management. CVSS score: 6.6/10. Published 2021-11-10.
How severe is CVE-2021-42303?: Medium severity. CVSS v3 base score is 6.6 out of 10.
Is CVE-2021-42303 known to be exploited?: 3 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.