# A tampering vulnerability exists in the NuGet Package Manager for Linux and Mac that could allow an authenticated attacker to modify a NuGet package's folder structure, aka 'NuGet Package Manager Tam…

CVE record · `CVE-2019-0757`

- **Identifiers:** `CVE-2019-0757`
- **State:** Confirmed
- **Severity:** No CVSS score
- **Critical:** No
- **CNA:** microsoft
- **Technologies:** [Microsoft Visual Studio](https://agentprime.io/advisories/technology/microsoft-visual-studio.md) · [Microsoft .NET Core SDK](https://agentprime.io/advisories/technology/microsoft-net-core-sdk.md) · [Microsoft Nuget](https://agentprime.io/advisories/technology/microsoft-nuget.md) · [Microsoft Mono Framework](https://agentprime.io/advisories/technology/microsoft-mono-framework.md)
- **Published:** 9 Apr 2019
- **Updated:** 4 Aug 2024
- **Reviewed by a person:** No

Published by the CVE Program (CNA: microsoft) at 9 Apr 2019, 01:51 UTC. agentprime has not analysed this yet, so whether it affects any app is not known. This CVE names a vendor and product rather than a package, so the lockfile check doesn’t match it.

## Affected products, as the CNA wrote them

- Vendor: Microsoft. Product: Microsoft Visual Studio.
  - affected: `2017 for Mac`
- Vendor: Microsoft. Product: .NET Core SDK.
  - affected: `1.1 on .NET Core 1.0`
  - affected: `2.1.500 on .NET Core 2.1`
  - affected: `2.2.100 on .NET Core 2.2`
  - affected: `1.1 on .NET Core 1.1`
- Vendor: Microsoft. Product: Nuget.
  - affected: `4.3.1`
  - affected: `4.4.2`
  - affected: `4.5.2`
  - affected: `4.6.3`
  - affected: `4.7.2`
  - affected: `4.8.2`
  - affected: `4.9.4`
- Vendor: Microsoft. Product: Mono Framework.
  - affected: `5.18.0.223`
  - affected: `5.20.0`

## Not analysed yet

We haven’t published our own analysis of this CVE. If a person reviews it, this page will say what’s affected and what has to be true for it to matter.

## Severity and exploitation

No source has published a CVSS score for this record yet.

- **CISA KEV:** Not listed.
- **EPSS:** 0.027, the 85th percentile, on 5 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

## Timeline

This record came from the full history of the CVE Program, published 9 Apr 2019. New records show when each source confirmed them.

## Sources

- [CVE List: CVE-2019-0757](https://www.cve.org/CVERecord?id=CVE-2019-0757)
- [NVD: CVE-2019-0757](https://nvd.nist.gov/vuln/detail/CVE-2019-0757)

### References from the CNA

- <https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-0757> (confirm)
- <https://access.redhat.com/errata/RHSA-2019:1259> (vendor-advisory, redhat)

Facts on this page come from the CVE List as the CNA published them, with CVSS from the sources named above, CISA KEV and FIRST EPSS. Vendors, products and versions are shown as the CNA wrote them. We don’t reproduce the CVE’s description.

## Check whether this affects you

This CVE names a vendor and product rather than a package, so the lockfile check doesn’t match it. Compare the affected versions above with what you run.

- With the agentprime MCP server (<https://api.agentprime.io/mcp>), `get_advisory` returns this record and `search_advisories` finds related ones. Setup: <https://agentprime.io/mcp.md>
- As JSON: <https://api.agentprime.io/v1/advisories/CVE-2019-0757>
- Everything that needs attention now: <https://agentprime.io/advisories/critical.md>

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The web page: <https://agentprime.io/advisories/CVE-2019-0757/>. Everything for agents: <https://agentprime.io/llms.txt>.