CVE-2020-1147
Is CVE-2020-1147 real, exploitable, or a false positive? Here's the community verdict.
Community verdict: No field verdicts yet. Be the first practitioner to weigh in.
signals
public sources
Confirmed exploited in the wild. Patch this first, regardless of the base score.
cisa ssvc
CISA Vulnrichment · assessed
CISA decision, by how critical the affected system is to you:
- low impact → Track
- medium impact → Attend
- high impact → Act
Track: normal patch cycle · Track*: watch closely · Attend: patch sooner · Act: patch now. About SSVC ↗
public exploits
links to sources — we don’t host codeA working exploit is publicly available from a maintained source. Treat this as higher urgency and verify your exposure.
affected packages
GHSA-g5vf-38cp-4px9 · GitHub rates it high- NuGetMicrosoft.NETCore.App
- Vulnerable
- ≥ 2.1.0, < 2.1.20
- Fixed in
- 2.1.20
- NuGetMicrosoft.NETCore.App.Runtime.linux-arm
- Vulnerable
- ≥ 3.1.0, < 3.1.6
- Fixed in
- 3.1.6
- NuGetMicrosoft.NETCore.App.Runtime.linux-arm64
- Vulnerable
- ≥ 3.1.0, < 3.1.6
- Fixed in
- 3.1.6
- NuGetMicrosoft.NETCore.App.Runtime.linux-musl-arm64
- Vulnerable
- ≥ 3.1.0, < 3.1.6
- Fixed in
- 3.1.6
- NuGetMicrosoft.NETCore.App.Runtime.linux-musl-x64
- Vulnerable
- ≥ 3.1.0, < 3.1.6
- Fixed in
- 3.1.6
- NuGetMicrosoft.NETCore.App.Runtime.linux-x64
- Vulnerable
- ≥ 3.1.0, < 3.1.6
- Fixed in
- 3.1.6
6 more packages
- NuGetMicrosoft.NETCore.App.Runtime.osx-x64
- Vulnerable
- ≥ 3.1.0, < 3.1.6
- Fixed in
- 3.1.6
- NuGetMicrosoft.NETCore.App.Runtime.rhel.6-x64
- Vulnerable
- ≥ 3.1.0, < 3.1.6
- Fixed in
- 3.1.6
- NuGetMicrosoft.NETCore.App.Runtime.win-arm
- Vulnerable
- ≥ 3.1.0, < 3.1.6
- Fixed in
- 3.1.6
- NuGetMicrosoft.NETCore.App.Runtime.win-arm64
- Vulnerable
- ≥ 3.1.0, < 3.1.6
- Fixed in
- 3.1.6
- NuGetMicrosoft.NETCore.App.Runtime.win-x64
- Vulnerable
- ≥ 3.1.0, < 3.1.6
- Fixed in
- 3.1.6
- NuGetMicrosoft.NETCore.App.Runtime.win-x86
- Vulnerable
- ≥ 3.1.0, < 3.1.6
- Fixed in
- 3.1.6
Source: GitHub Advisory Database (CC-BY 4.0), via OSV.dev. Check your lockfile version against the ranges above.
baseline read
auto · not a community verdict
Real — exploited in the wild
CISA confirms active exploitation. Treat scanner hits as true positives unless your specific version or config is unaffected.
Based on CISA KEV
Confirm or dispute →CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
A remote code execution vulnerability exists in .NET Framework, Microsoft SharePoint, and Visual Studio when the software fails to check the source markup of XML file input, aka '.NET Framework, SharePoint Server, and Visual Studio Remote Code Execution Vulnerability'.
References
Published · Added to CISA KEV (477 days after publication)
Embed this verdict
[](https://www.truepositive.app/cve/CVE-2020-1147)<a href="https://www.truepositive.app/cve/CVE-2020-1147"><img src="https://www.truepositive.app/cve/CVE-2020-1147/badge.svg" alt="TruePositive verdict for CVE-2020-1147"></a>Live badge that updates automatically as the community verdict changes.
timeline
- CISA SSVC assessment · exploitation: active
- Added to VulnCheck KEV · reported exploited in the wild
- Added to CISA KEV · confirmed exploited in the wild
- Published by NVD
Score and exploit changes tracked since .
Community ground truth
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In your experience, is this finding real and exploitable?
awaiting field verdictsCurated baseline: TruePositive's read from public sources is Real & exploitable — a starting point, not a community verdict.
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Field notes & remediation
Verdicts are the quick signal. Notes are the evidence and fixes behind them.
- 0
Microsoft .NET Framework, SharePoint, and Visual Studio Remote Code Execution Vulnerability — Microsoft .NET Framework, Microsoft SharePoint, and Visual Studio contain a remote code execution vulnerability when the software fails to check the source markup of XML file input. Successful exploitation allows an attacker to execute code in the context of the process responsible for deserialization of the XML content. Listed in the CISA KEV catalog (added 2021-11-03) — confirmed exploited in the wild, not theoretical. FIRST EPSS puts the chance of exploitation in the next 30 days at ~94%. Treat it as real and prioritize remediation over triage.
- 0
Required action for Microsoft .NET Framework, SharePoint, Visual Studio: Apply updates per vendor instructions. CISA set a federal remediation due date of 2022-05-03. After patching, verify the vulnerable path is no longer reachable before closing the finding.