Home/CVE/Inadequate encryption strength in .NET, .NET Framework, Visual Studio allows an authorized attacker to disclose informat
CVE

CVE-2025-55248

Inadequate encryption strength in .NET, .NET Framework, Visual Studio allows an authorized attacker to disclose informat

Inadequate encryption strength in .NET, .NET Framework, Visual Studio allows an authorized attacker to disclose information over a network.

MEDIUM · CVSS 4.8 EPSS 0.0003
Monitor
  • No active-exploitation, high-EPSS, or public-exploit signals - routine patching cadence
Sigma rules20 YARA rules0
⬡

Weakness Classification

CWE-326Inadequate Encryption Strength
▤

Affected Products & Versions

6
microsoft .net frameworkall versions
microsoft .net>= 8.0.0 and < 8.0.21
microsoft .net>= 9.0.0 and < 9.0.10
microsoft visual studio 2022>= 17.10.0 and < 17.10.20
microsoft visual studio 2022>= 17.12.0 and < 17.12.13
microsoft visual studio 2022>= 17.14.0 and < 17.14.17
▤

Affected Packages

12
Language-ecosystem packages (from OSV) tied to this CVE, with the version that fixes it - the dependency-level detail NVD doesn’t carry.
NuGet Microsoft.NetCore.App.Runtime.linux-arm MODERATE fixed in 9.0.10
NuGet Microsoft.NetCore.App.Runtime.linux-arm64 MODERATE fixed in 9.0.10
NuGet Microsoft.NetCore.App.Runtime.linux-musl-arm MODERATE fixed in 9.0.10
NuGet Microsoft.NetCore.App.Runtime.linux-musl-arm64 MODERATE fixed in 9.0.10
NuGet Microsoft.NetCore.App.Runtime.linux-musl-x64 MODERATE fixed in 9.0.10
NuGet Microsoft.NetCore.App.Runtime.linux-x64 MODERATE fixed in 9.0.10
NuGet Microsoft.NetCore.App.Runtime.osx-arm64 MODERATE fixed in 9.0.10
NuGet Microsoft.NetCore.App.Runtime.osx-x64 MODERATE fixed in 9.0.10
NuGet Microsoft.NetCore.App.Runtime.win-arm MODERATE fixed in 9.0.10
NuGet Microsoft.NetCore.App.Runtime.win-arm64 MODERATE fixed in 9.0.10
NuGet Microsoft.NetCore.App.Runtime.win-x64 MODERATE fixed in 9.0.10
NuGet Microsoft.NetCore.App.Runtime.win-x86 MODERATE fixed in 9.0.10
◈

Sigma Hunt Rules

20
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.
productcriticalHackTool - Windows Credential Editor (WCE) Execution
productcriticalWindows Credential Editor Registry
producthighOpenCanary - MSSQL Login Attempt Via Windows Authentication
producthighWindows LAPS Credential Dump From Entra ID
producthighTamper Windows Defender - PSClassic
producthighTamper Windows Defender Remove-MpPreference - ScriptBlockLogging
▣

Scoring & Timeline

4.8
MEDIUM · 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 NVD14 Oct 2025 · 05:15 PM
CVSS VectorCVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:H/I:N/A:N
SSVC triage · cisa-vulnrichment
Exploitation
none
Automatable
no
Technical impact
partial
SSVC asks the questions that actually drive patch urgency: is it being exploited, can attacks be automated, and how total is the impact.
⚑

Vendor Advisories

12
rhsaRHSA-2026:9080Important
rhsaRHSA-2026:9205Important
rhsaRHSA-2025:23225Critical
usnUSN-7822-1
rhsaRHSA-2025:18256Moderate
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