Home/CVE/Improper link resolution before file access ('link following') in Visual Studio allows an unauthorized attacker to eleva
CVE

CVE-2025-49739

Improper link resolution before file access ('link following') in Visual Studio allows an unauthorized attacker to eleva

Improper link resolution before file access ('link following') in Visual Studio allows an unauthorized attacker to elevate privileges over a network.

HIGH · CVSS 8.8 EPSS 0.00741
Schedule remediation
  • CVSS base score ≥ 7.0
Sigma rules8 YARA rules0
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Weakness Classification

CWE-59Improper Link Resolution Before File Access ('Link Following')
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Affected Products & Versions

7
microsoft visual studioall versions
microsoft visual studio 2017>= 15.0 and < 15.9.75
microsoft visual studio 2019>= 16.0 and < 16.11.49
microsoft visual studio 2022>= 17.8.0 and < 17.8.23
microsoft visual studio 2022>= 17.10.0 and < 17.10.17
microsoft visual studio 2022>= 17.12.0 and < 17.12.10
microsoft visual studio 2022>= 17.14.0 and < 17.14.8
◈

Sigma Hunt Rules

8
Exact rules name this CVE ID. Product rules name an affected product in their title. Related rules cover techniques used by actors who exploited this CVE. Showing the most relevant matches; the complete related set is on the full drill-down.
producthighRenamed Visual Studio Code Tunnel Execution
productmediumNetwork Connection Initiated To Visual Studio Code Tunnels Domain
productmediumVisual Studio Code Tunnel Remote File Creation
productmediumDNS Query To Visual Studio Code Tunnels Domain
productmediumVisual Studio Code Tunnel Execution
productmediumVisual Studio NodejsTools PressAnyKey Arbitrary Binary Execution
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Scoring & Timeline

8.8
HIGH · CVSS v3.1 · secure@microsoft.com
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD08 Jul 2025 · 05:16 PM
CVSS VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
SSVC triage · cisa-vulnrichment
Exploitation
none
Automatable
no
Technical impact
total
SSVC asks the questions that actually drive patch urgency: is it being exploited, can attacks be automated, and how total is the impact.
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Vendor Advisories

1
msrcCVE-2025-49739Elevation of Privilege
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