---
id: CVE-2019-1714
title: >-
  A vulnerability in the implementation of Security Assertion Markup Language
  (SAML) 2.0 Single Sign-On (SSO) for Clientless SSL VPN (WebVPN) and AnyConnect
  Remote Access VPN in Cisco Adaptive Security Appliance (ASA) Software and
  Cisco Fi…
summary: >-
  A vulnerability in the implementation of Security Assertion Markup Language
  (SAML) 2.0 Single Sign-On (SSO) for Clientless SSL VPN (WebVPN) and AnyConnect
  Remote Access VPN in Cisco Adaptive Security Appliance (ASA) Software and
  Cisco Fi…
severity: high
cvss: 8.6
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:H/A:N'
cwe:
  - CWE-255
vendor: cisco
product: secure_firewall_threat_defense
affected:
  - 'secure_firewall_threat_defense >= 6.2.1, < 6.2.3.12'
  - 'secure_firewall_threat_defense >= 6.3.0, < 6.3.0.3'
  - 'adaptive_security_appliance_software >= 9.7, < 9.8.4'
  - 'adaptive_security_appliance_software >= 9.9, < 9.9.2.50'
  - 'adaptive_security_appliance_software >= 9.10, < 9.10.1.17'
patched:
  - secure_firewall_threat_defense 6.3.0.3
  - adaptive_security_appliance_software 9.10.1.17
published: '2019-05-03'
updated: '2026-08-11'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2019-1714'
references:
  - url: 'http://www.securityfocus.com/bid/108185'
    label: psirt@cisco.com
  - url: >-
      https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190501-asaftd-saml-vpn
    label: psirt@cisco.com
  - url: 'http://www.securityfocus.com/bid/108185'
    label: af854a3a-2127-422b-91ae-364da2661108
  - url: >-
      https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190501-asaftd-saml-vpn
    label: af854a3a-2127-422b-91ae-364da2661108
tags:
  - nvd
epss: 0.01977
epssPercentile: 0.79626
ingestedAt: '2026-08-11T19:48:26.680Z'
---

## Overview

A vulnerability in the implementation of Security Assertion Markup Language (SAML) 2.0 Single Sign-On (SSO) for Clientless SSL VPN (WebVPN) and AnyConnect Remote Access VPN in Cisco Adaptive Security Appliance (ASA) Software and Cisco Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to successfully establish a VPN session to an affected device. The vulnerability is due to improper credential management when using NT LAN Manager (NTLM) or basic authentication. An attacker could exploit this vulnerability by opening a VPN session to an affected device after another VPN user has successfully authenticated to the affected device via SAML SSO. A successful exploit could allow the attacker to connect to secured networks behind the affected device.

## Affected

- `secure_firewall_threat_defense >= 6.2.1, < 6.2.3.12`
- `secure_firewall_threat_defense >= 6.3.0, < 6.3.0.3`
- `adaptive_security_appliance_software >= 9.7, < 9.8.4`
- `adaptive_security_appliance_software >= 9.9, < 9.9.2.50`
- `adaptive_security_appliance_software >= 9.10, < 9.10.1.17`

## Remediation

Upgrade past the affected range:

- `secure_firewall_threat_defense 6.3.0.3`
- `adaptive_security_appliance_software 9.10.1.17`