CVE-2019-1944: Cisco Adaptive Security Appliance Smart Tunnel Vulnerabilities

Severity: high (CVSS 7.3 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.3% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2019-08-07 · updated 2026-06-17
Weakness: CWE-20

Description

Multiple vulnerabilities in the smart tunnel functionality of Cisco Adaptive Security Appliance (ASA) could allow an authenticated, local attacker to elevate privileges to the root user or load a malicious library file while the tunnel is being established. For more information about these vulnerabilities, see the Details section of this security advisory.

Affected products

Cisco ASA Software: before 9.4.4.37 — fixed in 9.4.4.37

How to fix

Upgrade to a fixed version: Cisco ASA Software 9.4.4.37. Check the vendor advisory for mitigations.

References

https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190807-asa-multi
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190807-asa-multi

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