CVE-2024-43603

Service interruption via improper link resolution

Published Oct 8, 2024 · Updated Aug 19, 2026

Improper link resolution in Microsoft Visual Studio Collector Service allows local users to interrupt service availability. The service follows a crafted filesystem link before file access, but Microsoft has not identified the affected file operation or path. Exploitation requires low-privilege local access and affects availability only, with no reported confidentiality or integrity impact.

CVSS severity5.5
Medium
EPSS probability0.77%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper link resolution in Microsoft Visual Studio Collector Service allows local users to interrupt service availability. The service follows a crafted filesystem link before file access, but Microsoft has not identified the affected file operation or path. Exploitation requires low-privilege local access and affects availability only, with no reported confidentiality or integrity impact.

The record

CVE
CVE-2024-43603
Published
Oct 8, 2024
Updated
Aug 19, 2026
Vendor
Microsoft
Product
Microsoft Visual Studio 2019
Classifications
CWE-59, T1499.004
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Oct 8, 2024CVE publishedPublication date reported by the CVE source.
  2. Aug 19, 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=16.11.0 <16.11.41

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

Microsoft · Microsoft Visual Studio 2019version=16.11.0 <16.11.41
Microsoft · Microsoft Visual Studio 2015version=14.0.0 <14.0.27561.00
Microsoft · Microsoft Visual Studio 2022 version 17.10version=17.10 <17.10.8
Microsoft · Microsoft Visual Studio 2022 version 17.8version=17.8.0 <17.8.15
Microsoft · Microsoft Visual Studio 2022 version 17.6version=17.6.0 <17.6.20
Microsoft · Microsoft Visual Studio 2022 version 17.11version=17.11 <17.11.5
Microsoft · Microsoft Visual Studio 2017version=15.9.0 <15.9.67

Published CVSS scores

5.5MicrosoftCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/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-59Improper Link Resolution Before File Access ('Link Following')
T1499.004Application or System Exploitation

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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