CVE-2024-43628Network attack vector

Remote code execution via undisclosed integer overflow

Published Nov 12, 2024 · Updated Jul 8, 2025

Integer overflow in Microsoft Windows Telephony Service allows remote attackers to execute code after required user interaction. Microsoft identifies an integer overflow or wraparound in the service but has not disclosed the affected function, input format, or erroneous arithmetic operation. Exploitation requires a user action; successful exploitation executes attacker-controlled code in the affected Windows context.

CVSS severity8.8
High
EPSS probability1.61%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Integer overflow in Microsoft Windows Telephony Service allows remote attackers to execute code after required user interaction. Microsoft identifies an integer overflow or wraparound in the service but has not disclosed the affected function, input format, or erroneous arithmetic operation. Exploitation requires a user action; successful exploitation executes attacker-controlled code in the affected Windows context.

The record

CVE
CVE-2024-43628
Published
Nov 12, 2024
Updated
Jul 8, 2025
Vendor
Microsoft
Product
Windows 10 Version 1507
Classifications
CWE-190, T1204
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Nov 12, 2024CVE publishedPublication date reported by the CVE source.
  2. Jul 8, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=10.0.10240.0 <10.0.10240.20826

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Microsoft · Windows 10 Version 1507version=10.0.10240.0 <10.0.10240.20826
Microsoft · Windows Server 2019version=10.0.17763.0 <10.0.17763.6532
Microsoft · Windows Server 2025 (Server Core installation)version=10.0.26100.0 <10.0.26100.2314
Microsoft · Windows Server 2016 (Server Core installation)version=10.0.14393.0 <10.0.14393.7515
Microsoft · Windows 11, version 24H2version=10.0.26100.0 <10.0.26100.2314
Microsoft · Windows Server 2012 (Server Core installation)version=6.2.9200.0 <6.2.9200.25165
Microsoft · Windows Server 2012version=6.2.9200.0 <6.2.9200.25165
Microsoft · Windows 10 Version 21H2version=10.0.19043.0 <10.0.19044.5131
Microsoft · Windows Server 2022, 23H2 Edition (Server Core installation)version=10.0.25398.0 <10.0.25398.1251
Microsoft · Windows Server 2016version=10.0.14393.0 <10.0.14393.7515
Microsoft · Windows 11 Version 22H3version=10.0.22631.0 <10.0.22631.4460
Microsoft · Windows Server 2008 R2 Service Pack 1version=6.1.7601.0 <6.1.7601.27415
Microsoft · Windows Server 2008 R2 Service Pack 1 (Server Core installation)version=6.1.7601.0 <6.1.7601.27415
Microsoft · Windows 10 Version 22H2version=10.0.19045.0 <10.0.19045.5131
Microsoft · Windows Server 2012 R2 (Server Core installation)version=6.3.9600.0 <6.3.9600.22267
Microsoft · Windows Server 2019 (Server Core installation)version=10.0.17763.0 <10.0.17763.6532
Microsoft · Windows 11 Version 23H2version=10.0.22631.0 <10.0.22631.4460
Microsoft · Windows 11, version 22H2version=10.0.22621.0 <10.0.22621.4460
Microsoft · Windows 10 Version 1607version=10.0.14393.0 <10.0.14393.7515
Microsoft · Windows Server 2008 Service Pack 2version=6.0.6003.0 <6.0.6003.22966
Microsoft · Windows Server 2022version=10.0.20348.0 <10.0.20348.2849
Microsoft · Windows Server 2025version=10.0.26100.0 <10.0.26100.2314
Microsoft · Windows 10 Version 1809version=10.0.17763.0 <10.0.17763.6532
Microsoft · Windows Server 2012 R2version=6.3.9600.0 <6.3.9600.22267
Microsoft · Windows Server 2008 Service Pack 2 (Server Core installation)version=6.0.6003.0 <6.0.6003.22966

Published CVSS scores

8.8Microsoft CorporationCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-190Integer Overflow or Wraparound
T1204User Execution

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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