Vulnerability DatabaseCVE-2025-55247
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CVE-2025-55247
October 14, 2025
Improper link resolution before file access ('link following') in .NET allows an authorized attacker to elevate privileges locally.
Affected Packages
Microsoft.Build (NUGET):
Affected version(s) >=17.8.3 <17.8.43
Fix Suggestion:
Update to version 17.8.43
Microsoft.Build.Tasks.Core (NUGET):
Affected version(s) >=17.10.0-preview-24081-01 <17.10.46
Fix Suggestion:
Update to version 17.10.46
Microsoft.Build.Tasks.Core (NUGET):
Affected version(s) >=17.11.4 <17.11.48
Fix Suggestion:
Update to version 17.11.48
Microsoft.Build.Utilities.Core (NUGET):
Affected version(s) >=17.8.3 <17.8.43
Fix Suggestion:
Update to version 17.8.43
Microsoft.Build.Tasks.Core (NUGET):
Affected version(s) >=17.8.3 <17.8.43
Fix Suggestion:
Update to version 17.8.43
Microsoft.Build (NUGET):
Affected version(s) >=17.11.4 <17.11.48
Fix Suggestion:
Update to version 17.11.48
Microsoft.Build.Utilities.Core (NUGET):
Affected version(s) >=17.11.4 <17.11.48
Fix Suggestion:
Update to version 17.11.48
Microsoft.Build (NUGET):
Affected version(s) >=17.14.5 <17.14.28
Fix Suggestion:
Update to version 17.14.28
Microsoft.Build (NUGET):
Affected version(s) >=17.10.0-preview-24081-01 <17.10.46
Fix Suggestion:
Update to version 17.10.46
Microsoft.Build.Tasks.Core (NUGET):
Affected version(s) =17.15.0-preview-25277-114 <18.0.0-preview-25476-107
Fix Suggestion:
Update to version 18.0.0-preview-25476-107
Microsoft.Build.Tasks.Core (NUGET):
Affected version(s) >=17.14.5 <17.14.28
Fix Suggestion:
Update to version 17.14.28
Microsoft.Build.Tasks.Core (NUGET):
Affected version(s) >=17.12.6 <17.12.50
Fix Suggestion:
Update to version 17.12.50
Related Resources (4)
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-55247
https://nvd.nist.gov/vuln/detail/CVE-2025-55247
https://github.com/dotnet/msbuild
https://github.com/dotnet/msbuild/security/advisories/GHSA-w3q9-fxm7-j8fq
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CVSS v4
Base Score:
7
Attack Vector
LOCAL
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
LOW
User Interaction
PASSIVE
Vulnerable System Confidentiality
HIGH
Vulnerable System Integrity
HIGH
Vulnerable System Availability
HIGH
Subsequent System Confidentiality
NONE
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
CVSS v3
Base Score:
7.3
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Exploit Maturity
UNPROVEN
Weakness Type (CWE)
Improper Link Resolution Before File Access ('Link Following')
CWE-59
EPSS
Base Score:
0.05