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CVE-2026-32175
medium
CVSS 4.3
Vulnerability in Microsoft.NetCore.App.Runtime.win-arm (CVE-2026-32175)
Summary
vulnerability in Microsoft.NetCore.App.Runtime.win-arm (CVE-2026-32175). Risk of unauthorized operations or information disclosure. Mitigation: upgrade to `10.0.8` or later.
AI summary snake-internal / snake-material-v2
A vulnerability tracked as **CVE-2026-32175** has been found in Microsoft.NetCore.App.Runtime.win-arm.
Risk of unauthorized operations or information disclosure. CVSS score: 4.3/10.
What to do: upgrade Microsoft.NetCore.App.Runtime.win-arm to **10.0.8** or later.
If unsure, ask your IT team or search "Microsoft.NetCore.App.Runtime.win-arm CVE-2026-32175" on the vendor's site.
CVE-2026-32175 (Microsoft.NetCore.App.Runtime.win-arm) — CWE-36 / CVSS v3 4.3
Attack vector: remote (network-reachable) / no user interaction
Patched: `10.0.8` — apply immediately
Plan: 1) Audit SBOM/dependencies, 2) Stage→prod upgrade, 3) Add WAF/proxy monitoring on affected endpoints, 4) Hunt IOCs in logs.
Refs: see the GHSA / vendor advisory / patched release linked on this page.
❓ What is the problem
**A vulnerability** (CWE-36) exists in Microsoft.NetCore.App.Runtime.win-arm.
📍 Affected scope
Microsoft.NetCore.App.Runtime.win-arm — .
🔥 Severity
Severity: Medium (CVSS 4.3/10). Risk of unauthorized operations or information disclosure
🔧 How to fix
Update to **10.0.8**.
🛡️ Workaround
Until the patch is applied: disable the affected feature, apply WAF rules, or restrict access via network ACLs.
🔍 Detection
Search webserver/proxy logs for unusual request patterns matching this CVE's known IOCs. Run `grep -r 'Microsoft.NetCore.App.Runtime.win-arm' .` against your dependency files (package-lock.json, requirements.txt, go.sum) to find affected services.
Response Actions (7 steps)
Concrete steps and command examples for SOC/SRE teams to execute in order
-
1Identify exposure identify
grep -r 'Microsoft.NetCore.App.Runtime.win-arm' . | grep -v node_modulesリポジトリと本番環境の依存ファイル (package-lock.json / requirements.txt / go.sum / Gemfile.lock 等) で `Microsoft.NetCore.App.Runtime.win-arm` を grep し、稼働しているサービス・バージョンを把握する。
-
6Apply patch patch
Upgrade Microsoft.NetCore.App.Runtime.win-arm to 10.0.8ステージング環境で 10.0.8 に上げて回帰テスト → 本番反映。回帰テストはアプリの主要ハッピーパスと、Step 3 で見つけた異常検知の続報チェックを含めること。
-
7Post-deployment verification verify
Confirm patched version is live in productionパッチ適用後、ステージングで PoC または同等の悪用パターンを再現して脆弱性が閉じたことを確認。本番では Step 3 と同じログクエリでアラート再発が無いか継続監視。
Affected packages
nuget
Microsoft.NetCore.App.Runtime.win-arm
[{"type":"ECOSYSTEM","events":[{"introduced":"10.0.0"},{"fixed":"10.0.8"}]}]
nuget
Microsoft.NetCore.App.Runtime.win-arm64
[{"type":"ECOSYSTEM","events":[{"introduced":"10.0.0"},{"fixed":"10.0.8"}]}]
nuget
Microsoft.NetCore.App.Runtime.win-x64
[{"type":"ECOSYSTEM","events":[{"introduced":"10.0.0"},{"fixed":"10.0.8"}]}]
nuget
Microsoft.NetCore.App.Runtime.win-x86
[{"type":"ECOSYSTEM","events":[{"introduced":"10.0.0"},{"fixed":"10.0.8"}]}]
References
- advisory https://nvd.nist.gov/vuln/detail/CVE-2026-32175
- package https://github.com/dotnet/runtime
- patch [email protected]
- web https://github.com/dotnet/runtime/security/advisories/GHSA-rg75-q538-x34v
- web https://github.com/dotnet/announcements/issues/396
- web https://github.com/advisories/GHSA-rg75-q538-x34v