CVE-2019-1693 json
Cisco Adaptive Security Appliance Software and Firepower Threat Defense Software WebVPN Denial of Service Vulnerability
published 2019-05-03 7 y ago modified 2026-08-11 2 mo ago also EUVD-2019-10250
- cvss
- 7.7
- version 3.0, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 2.0%
- EPSS 2.0% chance of exploitation in 30 days, percentile 81%
- public exploits
- 0
- none known
Summary
A vulnerability in the WebVPN service of Cisco Adaptive Security Appliance (ASA) Software and Cisco Firepower Threat Defense (FTD) Software could allow an authenticated, remote attacker to cause a denial of service (DoS) condition on an affected device. The vulnerability is due to improper management of authenticated sessions in the WebVPN portal. An attacker could exploit this vulnerability by authenticating with valid credentials and accessing a specific URL in the WebVPN portal. A successful exploit could allow the attacker to cause the device to reload, resulting in a temporary DoS condition.
Patch / fix
- Cisco Cisco Adaptive Security Appliance (ASA) Software 9.4.4.34, 9.6.4.25, 9.8.4, 9.9.2.50, 9.10.1.17
- Cisco Cisco Firepower Threat Defense (FTD) Software 6.2.3.12, 6.3.0.3
CISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- partial
- Assessed
- 23 mo ago
Exploit prediction
2.05% chance of exploitation in the next 30 days, higher than 81% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.0 | 7.7 | CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H |
| NVD | 3.1 | 6.5 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
| NVD | 2.0 | 6.8 | AV:N/AC:L/Au:S/C:N/I:N/A:C |
Affected products
- Cisco Cisco Adaptive Security Appliance (ASA) Software
- Cisco Cisco Firepower Threat Defense (FTD) Software
Classification
- Weakness
-
- CWE-399 Resource Management Errors
References
-
tools.cisco.com
/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190501-asa-ftd-dos
vendor-advisory
-
securityfocus.com
/bid/108157
vdb-entry, third-party-advisory
Sources
- CVE List CVE-2019-1693
- NVD CVE-2019-1693
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