CVE-2024-38257 — Microsoft AllJoyn API Information Disclosure Vulnerability

Executive Summary

None

Overview

7.5

CVSS HIGH

Important

MS Severity

Not Exploited

MS Exploit Status

Less Likely

MS Exploit Likelihood

Category Information Disclosure

Released Sep 10 2024

Last Updated Sep 10 2024

Publicly Disclosed No

CISA KEV Not Listed

Known Exploits None Known

EPSS Score 0.04469 — 0.90212 percentile

NVD CVSS 7.5 HIGH — matches MSRC

CVSS Vector

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

ATTACK VECTOR

Network

ATTACK COMPLEXITY

Low

PRIVILEGES REQUIRED

None

USER INTERACTION

None

SCOPE

Unchanged

CONFIDENTIALITY

High

INTEGRITY

None

AVAILABILITY

None

EXPLOIT CODE MATURITY

Unproven

REMEDIATION LEVEL

Official Fix

REPORT CONFIDENCE

Confirmed

Temporal Score: 6.5

EPSS Score

0.04469

probability of exploitation in the next 30 days

0.90212 percentile - updated 2026-06-21

View on FIRST.org

Affected Products

21 affected products

Product	KB Article	Severity	Impact	Restart Required
Windows 10 Version 1607 for 32-bit Systems	`5043051 (Security Update)`	Important	Information Disclosure	Yes
Windows 10 Version 1607 for x64-based Systems	`5043051 (Security Update)`	Important	Information Disclosure	Yes
Windows 10 Version 1809 for 32-bit Systems	`5043050 (Security Update)`	Important	Information Disclosure	Yes
Windows 10 Version 1809 for x64-based Systems	`5043050 (Security Update)`	Important	Information Disclosure	Yes
Windows 10 Version 21H2 for 32-bit Systems	`5043064 (Security Update)`	Important	Information Disclosure	Yes
Windows 10 Version 21H2 for ARM64-based Systems	`5043064 (Security Update)`	Important	Information Disclosure	Yes
Windows 10 Version 21H2 for x64-based Systems	`5043064 (Security Update)`	Important	Information Disclosure	Yes
Windows 10 Version 22H2 for 32-bit Systems	`5043064 (Security Update)`	Important	Information Disclosure	Yes
Windows 10 Version 22H2 for ARM64-based Systems	`5043064 (Security Update)`	Important	Information Disclosure	Yes
Windows 10 Version 22H2 for x64-based Systems	`5043064 (Security Update)`	Important	Information Disclosure	Yes
Windows 11 version 21H2 for ARM64-based Systems	`5043067 (Security Update)`	Important	Information Disclosure	Yes
Windows 11 version 21H2 for x64-based Systems	`5043067 (Security Update)`	Important	Information Disclosure	Yes
Windows 11 Version 22H2 for ARM64-based Systems	`5043076 (Security Update)`	Important	Information Disclosure	Yes
Windows 11 Version 22H2 for x64-based Systems	`5043076 (Security Update)`	Important	Information Disclosure	Yes
Windows 11 Version 23H2 for ARM64-based Systems	`5043076 (Security Update)`	Important	Information Disclosure	Yes
Windows 11 Version 23H2 for x64-based Systems	`5043076 (Security Update)`	Important	Information Disclosure	Yes
Windows Server 2016	`5043051 (Security Update)`	Important	Information Disclosure	Yes
Windows Server 2016 (Server Core installation)	`5043051 (Security Update)`	Important	Information Disclosure	Yes
Windows Server 2019	`5043050 (Security Update)`	Important	Information Disclosure	Yes
Windows Server 2019 (Server Core installation)	`5043050 (Security Update)`	Important	Information Disclosure	Yes
Windows Server 2022 5042881 (Security Update) 5042880 (SecurityHotpatchUpdate) Important Information Disclosure 5041160 Base: 7.5 Temporal: 6.5 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C 10.0.20348.2700 10.0.20348.2695 Yes 5042881 Windows Server 2022 (Server Core installation) 5042881 (Security Update) 5042880 (SecurityHotpatchUpdate) Important Information Disclosure 5041160 Base: 7.5 Temporal: 6.5 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C 10.0.20348.2700 10.0.20348.2695 Yes 5042881 Windows Server 2022, 23H2 Edition (Server Core installation)	`5043055 (Security Update)`	Important	Information Disclosure	Yes

Patches

6 patches

Article	Type	Restart
`5043051`	Security Update	Yes
`5043050`	Security Update	Yes
`5043064`	Security Update	Yes
`5043067`	Security Update	Yes
`5043076`	Security Update	Yes
`5043055`	Security Update	Yes

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

Cisco Talos

References

MSRC Advisory MITRE NVD