CVE-2024-35255 — Azure Identity Libraries and Microsoft Authentication Library Elevation of Privilege Vulnerability

Executive Summary

None

Overview

5.5

CVSS MEDIUM

Important

MS Severity

Not Exploited

MS Exploit Status

Less Likely

MS Exploit Likelihood

Category Elevation of Privilege

Weakness CWE-362: Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')

Released Jun 11 2024

Last Updated Jun 11 2024

Publicly Disclosed No

CISA KEV Not Listed

Known Exploits None Known

EPSS Score 0.00788 — 0.5245 percentile

NVD CVSS 5.5 MEDIUM — matches MSRC

CVSS Vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C

ATTACK VECTOR

Local

ATTACK COMPLEXITY

Low

PRIVILEGES REQUIRED

Low

USER INTERACTION

None

SCOPE

Unchanged

CONFIDENTIALITY

High

INTEGRITY

None

AVAILABILITY

None

EXPLOIT CODE MATURITY

Unproven

REMEDIATION LEVEL

Official Fix

REPORT CONFIDENCE

Confirmed

Temporal Score: 4.8

EPSS Score

0.00788

probability of exploitation in the next 30 days

0.5245 percentile - updated 2026-07-25

View on FIRST.org

Affected Products

9 affected products

Product	KB Article	Severity	Impact	Restart Required
Azure Identity Library for .NET	`Release Notes (Security Update)`	Important	Elevation of Privilege	Maybe
Azure Identity Library for C++	`Release Notes (Security Update)`	Important	Elevation of Privilege	Maybe
Azure Identity Library for Go	`Release Notes (Security Update)`	Important	Elevation of Privilege	Maybe
Azure Identity Library for Java	`Release Notes (Security Update)`	Important	Elevation of Privilege	Maybe
Azure Identity Library for JavaScript	`Release Notes (Security Update)`	Important	Elevation of Privilege	Maybe
Azure Identity Library for Python	`Release Notes (Security Update)`	Important	Elevation of Privilege	Maybe
Microsoft Authentication Library (MSAL) for .NET	`Release Notes (Security Update)`	Important	Elevation of Privilege	Maybe
Microsoft Authentication Library (MSAL) for Java	`Release Notes (Security Update)`	Important	Elevation of Privilege	Maybe
Microsoft Authentication Library (MSAL) for Node.js	`Release Notes (Security Update)`	Important	Elevation of Privilege	Maybe

Patches

1 patch

Article	Type	Restart
`Release Notes`	Security Update	Maybe

Known Exploits

No known exploits have been linked for this CVE yet. When available, exploit references will be sourced from public repositories and may be unverified, incomplete, or non-functional. Always review code carefully before use in any environment.

Acknowledgments

Vladimir Abramzon with Microsoft
Eli Arbel with Microsoft

References

MSRC Advisory MITRE NVD