CVE-2024-43495

Code execution requiring user interaction

Published Sep 10, 2024 · Updated Aug 10, 2026

Remote code execution in Windows libarchive allows local users to execute code through an undisclosed local vector requiring user interaction. Microsoft identifies an integer overflow or wraparound in the Windows libarchive component but has not published the affected function, arithmetic operation, or input format. Exploitation requires low-privileged local access and user interaction; no higher privilege context is publicly specified.

CVSS severity7.3
High
EPSS probability0.94%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Remote code execution in Windows libarchive allows local users to execute code through an undisclosed local vector requiring user interaction. Microsoft identifies an integer overflow or wraparound in the Windows libarchive component but has not published the affected function, arithmetic operation, or input format. Exploitation requires low-privileged local access and user interaction; no higher privilege context is publicly specified.

The record

CVE
CVE-2024-43495
Published
Sep 10, 2024
Updated
Aug 10, 2026
Vendor
Microsoft
Product
Windows Server 2022, 23H2 Edition (Server Core installation)
Classifications
CWE-190, T1204
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Sep 10, 2024CVE publishedPublication date reported by the CVE source.
  2. Aug 10, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

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

  1. Affected versionversion=10.0.25398.0 <10.0.25398.1009

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

Microsoft · Windows Server 2022, 23H2 Edition (Server Core installation)version=10.0.25398.0 <10.0.25398.1009
Microsoft · Windows 11 Version 22H3version=10.0.22631.0 <10.0.22631.3880
Microsoft · Windows 11 Version 23H2version=10.0.22631.0 <10.0.22621.3880
Microsoft · Windows 11, version 22H2version=10.0.22621.0 <10.0.22621.3880

Published CVSS scores

7.3MicrosoftCVSS:3.1/AV:L/AC:L/PR:L/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)
Vectorlocal
Privilegesauthenticated
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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