# CVE-2019-1950: Cisco IOS XE SD-WAN Software Default Credentials Vulnerability

> An unauthenticated local attacker can use default credentials to gain elevated privileges and take complete control of Cisco IOS XE SD-WAN devices.

- **Severity:** High 8.4 (`CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Local or same network only
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 19 Feb 2020
- **Updated:** 15 Nov 2024
- **Also known as:** GHSA-whgh-2r37-m9vr

## What is CVE-2019-1950?

CVE-2019-1950 is a high-severity vulnerability in Cisco Ios Xe, published on 19 Feb 2020. It can only be exploited from the same machine or local network, with no action from the victim.

### Official description

A vulnerability in Cisco IOS XE SD-WAN Software could allow an unauthenticated, local attacker to gain unauthorized access to an affected device. The vulnerability is due to the existence of default credentials within the default configuration of an affected device. An attacker who has access to an affected device could log in with elevated privileges. A successful exploit could allow the attacker to take complete control of the device. This vulnerability affects Cisco devices that are running Cisco IOS XE SD-WAN Software releases 16.11 and earlier.

Weakness: CWE-1188 (Initialization of a Resource with an Insecure Default), CWE-255

## Which versions are affected by CVE-2019-1950?

It affects 1 product.


Products: Cisco Ios Xe.

## How do I fix CVE-2019-1950?

No fix has been published for CVE-2019-1950 yet. Limit exposure of the affected software until one is available.

## Is CVE-2019-1950 being exploited?

There is no known exploitation of CVE-2019-1950 in the wild and no public exploit code.

## Other vulnerabilities in Cisco Ios Xe

- [CVE-2023-20198](https://insights.sbomify.com/CVE-2023-20198/): Cisco IOS XE Web UI Privilege Escalation (critical 10.0, exploited in the wild)
- [CVE-2018-0151](https://insights.sbomify.com/CVE-2018-0151/): Cisco IOS Software and Cisco IOS XE Software Quality of Service Remote Code Execution (critical 9.8, exploited in the wild)
- [CVE-2023-20273](https://insights.sbomify.com/CVE-2023-20273/): Cisco IOS XE Web UI Command Injection (high 7.2, exploited in the wild)
- [CVE-2025-20188](https://insights.sbomify.com/CVE-2025-20188/): Hardcoded credentials in Cisco IOS XE Software (critical 10.0)
- [CVE-2021-34770](https://insights.sbomify.com/CVE-2021-34770/): Cisco IOS XE Software for Catalyst 9000 Family Wireless Controllers CAPWAP Remote Code Execution Vulnerability (critical 10.0)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2019-1950 and fix it if it is affected.

What it is: CVE-2019-1950 is a high-severity vulnerability in Cisco Ios Xe, published on 19 Feb 2020. It can only be exploited from the same machine or local network, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2019-1950 in the wild and no public exploit code.

Affected product: Cisco Ios Xe. No package-level version data is available, so check the vendor advisory linked from the reference page.

Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.

Reference: https://insights.sbomify.com/CVE-2019-1950/ (Markdown: https://insights.sbomify.com/CVE-2019-1950/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2019-1950
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2019-1950
- OSV: https://osv.dev/vulnerability/CVE-2019-1950

---
From sbomify Insights: https://insights.sbomify.com/CVE-2019-1950/
Summaries are generated and may contain mistakes; the official description above is the record.