---
title: "CVE-2026-32179: MsQuic has a Remote Elevation of Privilege Vulnerability"
url: https://erroneo.us/security/cve/CVE-2026-32179/
description: "CVE-2026-32179 (Microsoft.Native.Quic.MsQuic.OpenSSL (NuGet)): MsQuic has a Remote Elevation of Privilege Vulnerability"
type: vulnerability-record
section: "Security Digest"
date_published: 2026-04-16
date_modified: 2026-05-08
publisher: erroneo.us
author: erroneo.us Security Desk
cve: "CVE-2026-32179"
kev: false
cvss: 9.8
epss: null
license: All rights reserved. Quote with attribution and a link.
---

# CVE-2026-32179: MsQuic has a Remote Elevation of Privilege Vulnerability

**Signal:** Critical and remotely reachable. No known exploitation yet, but it is network-reachable without credentials. (Computed from CISA KEV, EPSS and CVSS; not an editorial verdict.)

## Should you act?

- No confirmed exploitation. It is not in CISA’s KEV catalog. That can change quickly after a public write-up; re-check if you are affected.
- Remotely reachable with no login and no user interaction. If the vulnerable service is exposed to the internet, prioritize it.
- Only applies if your dependency tree includes Microsoft.Native.Quic.MsQuic.OpenSSL (NuGet) >= 2.5.0-ci.532574, < 2.5.7, fixed in 2.5.7 ; Microsoft.Native.Quic.MsQuic.Schannel (NuGet) >= 2.5.0-ci.532574, < 2.5.7, fixed in 2.5.7 ; Microsoft.Native.Quic.MsQuic.Schannel (NuGet) < 2.4.18, fixed in 2.4.18 ; Microsoft.Native.Quic.MsQuic.OpenSSL (NuGet) < 2.4.18, fixed in 2.4.18 . Check your lockfile, including transitive dependencies.

## What it is

MsQuic has a Remote Elevation of Privilege Vulnerability

## Affected packages

- NuGet `Microsoft.Native.Quic.MsQuic.OpenSSL` >= 2.5.0-ci.532574, < 2.5.7 → fixed: 2.5.7
- NuGet `Microsoft.Native.Quic.MsQuic.Schannel` >= 2.5.0-ci.532574, < 2.5.7 → fixed: 2.5.7
- NuGet `Microsoft.Native.Quic.MsQuic.Schannel` < 2.4.18 → fixed: 2.4.18
- NuGet `Microsoft.Native.Quic.MsQuic.OpenSSL` < 2.4.18 → fixed: 2.4.18

## Severity

- GitHub CVSS 3.1: 9.8 `CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H`

## Exploitation

- CISA KEV: not listed (no confirmed in-the-wild exploitation known to CISA).

## Sources

- [GitHub Advisory GHSA-gvvw-8j96-8g5r](https://github.com/advisories/GHSA-gvvw-8j96-8g5r)
- [CVE.org record CVE-2026-32179](https://www.cve.org/CVERecord?id=CVE-2026-32179)
- [NVD entry CVE-2026-32179](https://nvd.nist.gov/vuln/detail/CVE-2026-32179)
- [github.com](https://github.com/microsoft/msquic/security/advisories/GHSA-gvvw-8j96-8g5r)
- [github.com](https://github.com/microsoft/msquic/commit/1e6e999b199430effeefee3d85baa0c9dd35ad5e)

---
Source page: https://erroneo.us/security/cve/CVE-2026-32179/ · Security Digest: https://erroneo.us/security/ · More: https://erroneo.us/llms.txt