---
id: "CVE-2020-10148"
kind: "vulnerability"
aliases: ["CVE-2020-10148"]
title: "SolarWinds Orion: SolarWinds Orion Authentication Bypass Vulnerability"
severity: "critical"
cvss: 9.8
epss: 0.9198
exploited: true
status: "open"
category: "package"
products: [{"name": "SolarWinds Orion", "fixed": [], "affected": "", "ecosystem": "vendor"}]
ecosystems: ["vendor"]
tags: ["exploited", "package", "self-hosted", "solarwinds-orion", "windows"]
not_affected_if: ["not-running-orion"]
published_at: "2020-12-29T22:15:12+00:00"
first_seen_at: "2026-10-23T19:11:53+00:00"
updated_at: "2026-10-23T21:57:34+00:00"
sources: [{"source": "kev", "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?search_api_fulltext=CVE-2020-10148", "first_seen_at": "2026-10-23T19:11:53+00:00"}, {"source": "epss", "url": "https://api.first.org/data/v1/epss?cve=CVE-2020-10148", "first_seen_at": "2026-10-23T19:13:43+00:00"}, {"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2020-10148", "first_seen_at": "2026-10-23T21:57:34+00:00"}]
---

# SolarWinds Orion: SolarWinds Orion Authentication Bypass Vulnerability

SolarWinds Orion API has an authentication bypass that lets a remote attacker run API commands without logging in. It is on CISA's known-exploited list and EPSS rates exploitation probability at 0.920.

_Summary, check and fix written by a model from the sources; labelled as such._

## Affected

- vendor:SolarWinds Orion affected ? fixed ?

## Fix

Apply updates per vendor instructions; the sources do not name the fixed Orion version.

## Timeline

- 2026-10-23T19:11:53+00:00 kev https://www.cisa.gov/known-exploited-vulnerabilities-catalog?search_api_fulltext=CVE-2020-10148
- 2026-10-23T19:13:43+00:00 epss https://api.first.org/data/v1/epss?cve=CVE-2020-10148
- 2026-10-23T21:57:34+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2020-10148

## From the sources

The SolarWinds Orion API is vulnerable to an authentication bypass that could allow a remote attacker to execute API commands. This vulnerability could allow a remote attacker to bypass authentication and execute API commands which may result in a compromise of the SolarWinds instance. SolarWinds Orion Platform versions 2019.4 HF 5, 2020.2 with no hotfix installed, and 2020.2 HF 1 are affected.

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_Free to read at a human pace. An API with keys and an MCP server are in preparation; early access: hello@infrastack.ai_