---
title: "CVE-2019-9499\n    | Ubuntu"
description: Ubuntu is an open source software operating system that runs from the
  desktop, to the cloud, to all your internet connected things.
url: https://ubuntu.com/security/CVE-2019-9499?format=md
keywords: index, follow
---

# CVE-2019-9499

Publication date 10 April 2019

Last updated 25 August 2025

---

Ubuntu priority

**Medium**

[Why this priority?](https://ubuntu.com/security/cves/about#priority )

## Cvss 3 Severity Score

**8.1 · High**

[Score breakdown](https://ubuntu.com/security/CVE-2019-9499?format=md#impact-score)

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## Description

The implementations of EAP-PWD in wpa\_supplicant EAP Peer, when built
against a crypto library missing explicit validation on imported elements,
do not validate the scalar and element values in EAP-pwd-Commit. An
attacker may complete authentication, session key and control of the data
connection with a client. Both hostapd with SAE support and wpa\_supplicant
with SAE support prior to and including version 2.4 are affected. Both
hostapd with EAP-pwd support and wpa\_supplicant with EAP-pwd support prior
to and including version 2.7 are affected.

## Status

Show unmaintained releases

| Package | Ubuntu Release | Status |
| --- | --- | --- |
| wpa | 19.04 disco | Fixed 2:2.6-21ubuntu3 |
| 18.10 cosmic | Fixed 2:2.6-18ubuntu1.1 |
| 18.04 LTS bionic | Fixed 2:2.6-15ubuntu2.2 |
| 16.04 LTS xenial | Fixed 2.4-0ubuntu6.4 |
| 14.04 LTS trusty | Fixed 2.1-0ubuntu1.7 |
| wpasupplicant | 19.04 disco | Not in release |
| 18.10 cosmic | Not in release |
| 18.04 LTS bionic | Not in release |
| 16.04 LTS xenial | Not in release |
| 14.04 LTS trusty | Not in release |

---

* [How can I get the fixes?](https://ubuntu.com/security/cves/about#security)
* [What do statuses mean?](https://ubuntu.com/security/cves/about#statuses)

## Severity score breakdown

CVSS version:
CVSS v3.0

**Base score**

8.1 · High

* Base metrics

  | Parameter | Value |
  | --- | --- |
  | Attack vector | Network |
  | Attack complexity | High |
  | Privileges required | None |
  | User interaction | None |
  | Scope | Unchanged |
  | Confidentiality impact | High |
  | Integrity impact | High |
  | Availability impact | High |
* Scores

  | Parameter | Value |
  | --- | --- |
  | Base score | 8.1 · High |
  | Exploitability score | - |
  | Impact score | - |

**Vector:** CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

## References

* [MITRE](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-9499)
* [NVD](https://nvd.nist.gov/vuln/detail/CVE-2019-9499)
* [Launchpad](https://launchpad.net/bugs/cve/CVE-2019-9499)
* [Debian](https://security-tracker.debian.org/tracker/CVE-2019-9499)

### Related Ubuntu Security Notices (USN)

+ [USN-3944-1](https://usn.ubuntu.com/USN-3944-1)
+ wpa\_supplicant and hostapd vulnerabilities
+ 10 April 2019

### Other references

* <https://w1.fi/security/2019-4/>
* <https://www.cve.org/CVERecord?id=CVE-2019-9499>