CVE-2019-1714

Cisco Adaptive Security Appliance Software and Firepower Threat Defense Software VPN SAML Authentication Bypass Vulnerability

HIGH

8.6

CVSS Score

Published: May 3, 2019 at 04:15 PM UTC

Updated: August 11, 2026 at 07:33 PM UTC

19 products affected across 1 vendorAdaptive Security ApplianceSecure Firewall Threat DefenseAsa 5525-X

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Severity

HIGH8.6

Exploit prediction

EPSS 2%

SSVC

No known exploit

Description

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

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Adaptive Security Appliance · Cisco

95%

v < 9.10.1.17v < 9.8.4v < 9.9.2.509.10 ≤ v < 9.10.1.179.7 ≤ v < 9.8.49.9 ≤ v < 9.9.2.50

Affected range stops below 9.10.1.17, so it looks safe — our inference, not a vendor statement

Affected range stops below 9.8.4, so it looks safe — our inference, not a vendor statement

Affected range stops below 9.9.2.50, so it looks safe — our inference, not a vendor statement

cisco-adaptive-security-virtual-appliance (environment) · cisco-asa-5506-x (environment) · cisco-asa-5506h-x (environment) · cisco-asa-5506w-x (environment) · cisco-asa-5508-x (environment) · cisco-asa-5516-x (environment) · cisco-asa-5525-x (environment) · cisco-asa-5545-x (environment) · cisco-asa-5555-x (environment) · cisco-firepower-2110 (environment) · cisco-firepower-2120 (environment) · cisco-firepower-2130 (environment) · cisco-firepower-2140 (environment) · cisco-firepower-4100 (environment) · cisco-firepower-9300 (environment) · cisco-isa-3000 (environment)

Secure Firewall Threat Defense · Cisco

95%

6.2.1 ≤ v < 6.2.3.126.3.0 ≤ v < 6.3.0.3

Firepower Threat Defense · Cisco

60%

v < 6.2.3.12v < 6.3.0.3

Affected range stops below 6.2.3.12, so it looks safe — our inference, not a vendor statement

Affected range stops below 6.3.0.3, so it looks safe — our inference, not a vendor statement

Adaptive Security Virtual Appliance · Ciscodevice

80%

All versions

Asa 5506-X · Ciscodevice