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TI-2019-01319 Aliases CVE-2019-1693GHSA-3cqj-jcvx-xhxr

Cisco Adaptive Security Appliance Software and Firepower Threat Defense Software WebVPN Denial of Service Vulnerability

Priority LOW 33CWE-399Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
None
Attack complexity
Low
Impact type
Denial of service
Confidentiality · integrity · availability
None · None · High
Fix status
Fixed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-399 and the CVSS impact.

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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.02048 81st percentileScored 2026-11-07
Fix Fixed Cisco Adaptive Security Appliance (ASA) Software (Cisco): 9.4.4.34, 9.6.4.25, 9.8.4 +2Cisco Firepower Threat Defense (FTD) Software (Cisco): 6.2.3.12, 6.3.0.3

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
CiscoCisco Adaptive Security Appliance (ASA) Softwarebefore 9.4.4.34; before 9.6.4.25; before 9.8.4; before 9.9.2.50; before 9.10.1.179.4.4.34, 9.6.4.25, 9.8.4, 9.9.2.50, 9.10.1.17Patch availableCNA
CiscoCisco Firepower Threat Defense (FTD) Softwarebefore 6.2.3.12; before 6.3.0.36.2.3.12, 6.3.0.3Patch availableCNA
  • Cisco Adaptive Security Appliance (ASA) Software VendorCisco Affected before 9.4.4.34; before 9.6.4.25; before 9.8.4; before 9.9.2.50; before 9.10.1.17 Fixed in 9.4.4.34, 9.6.4.25, 9.8.4, 9.9.2.50, 9.10.1.17 Patch available CNA
  • Cisco Firepower Threat Defense (FTD) Software VendorCisco Affected before 6.2.3.12; before 6.3.0.3 Fixed in 6.2.3.12, 6.3.0.3 Patch available CNA

CPE configurations NVD · 15

CPEVersionsRoleVendor
cpe:2.3:a:cisco:adaptive_security_appliance_software:*:*:*:*:*:*:*:*before 9.4.4.34VulnerableCisco
cpe:2.3:o:cisco:adaptive_security_appliance_software:*:*:*:*:*:*:*:*9.5 to before 9.6.4.25; 9.7 to before 9.8.4; 9.9 to before 9.9.2.50; 9.10 to before 9.10.1.17VulnerableCisco
cpe:2.3:h:cisco:asa_5505:-:*:*:*:*:*:*:*not specified by NVDRunning onCisco
cpe:2.3:h:cisco:asa_5510:-:*:*:*:*:*:*:*not specified by NVDRunning onCisco
cpe:2.3:h:cisco:asa_5512-x:-:*:*:*:*:*:*:*not specified by NVDRunning onCisco
cpe:2.3:h:cisco:asa_5515-x:-:*:*:*:*:*:*:*not specified by NVDRunning onCisco
cpe:2.3:h:cisco:asa_5520:-:*:*:*:*:*:*:*not specified by NVDRunning onCisco
cpe:2.3:h:cisco:asa_5525-x:-:*:*:*:*:*:*:*not specified by NVDRunning onCisco
cpe:2.3:h:cisco:asa_5540:-:*:*:*:*:*:*:*not specified by NVDRunning onCisco
cpe:2.3:h:cisco:asa_5545-x:-:*:*:*:*:*:*:*not specified by NVDRunning onCisco
  • cpe:2.3:a:cisco:adaptive_security_appliance_software:*:*:*:*:*:*:*:* Versions before 9.4.4.34 Vulnerable ·Cisco
  • cpe:2.3:o:cisco:adaptive_security_appliance_software:*:*:*:*:*:*:*:* Versions 9.5 to before 9.6.4.25; 9.7 to before 9.8.4; 9.9 to before 9.9.2.50; 9.10 to before 9.10.1.17 Vulnerable ·Cisco
  • cpe:2.3:h:cisco:asa_5505:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Cisco
  • cpe:2.3:h:cisco:asa_5510:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Cisco
  • cpe:2.3:h:cisco:asa_5512-x:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Cisco
  • cpe:2.3:h:cisco:asa_5515-x:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Cisco
  • cpe:2.3:h:cisco:asa_5520:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Cisco
  • cpe:2.3:h:cisco:asa_5525-x:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Cisco
  • cpe:2.3:h:cisco:asa_5540:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Cisco
  • cpe:2.3:h:cisco:asa_5545-x:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Cisco
Show 5 more CPE
CPEVersionsRoleVendor
cpe:2.3:h:cisco:asa_5550:-:*:*:*:*:*:*:*not specified by NVDRunning onCisco
cpe:2.3:h:cisco:asa_5555-x:-:*:*:*:*:*:*:*not specified by NVDRunning onCisco
cpe:2.3:h:cisco:asa_5580:-:*:*:*:*:*:*:*not specified by NVDRunning onCisco
cpe:2.3:h:cisco:asa_5585-x:-:*:*:*:*:*:*:*not specified by NVDRunning onCisco
cpe:2.3:a:cisco:secure_firewall_threat_defense:*:*:*:*:*:*:*:*6.2.1 to before 6.2.3.12; 6.3.0 to before 6.3.0.3VulnerableCisco
  • cpe:2.3:h:cisco:asa_5550:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Cisco
  • cpe:2.3:h:cisco:asa_5555-x:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Cisco
  • cpe:2.3:h:cisco:asa_5580:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Cisco
  • cpe:2.3:h:cisco:asa_5585-x:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Cisco
  • cpe:2.3:a:cisco:secure_firewall_threat_defense:*:*:*:*:*:*:*:* Versions 6.2.1 to before 6.2.3.12; 6.3.0 to before 6.3.0.3 Vulnerable ·Cisco

Remediation

  • Fix · CNA Cisco Adaptive Security Appliance (ASA) Software (Cisco) Fixed in 9.4.4.34, 9.6.4.25, 9.8.4, 9.9.2.50, 9.10.1.17
  • Fix · CNA Cisco Firepower Threat Defense (FTD) Software (Cisco) Fixed in 6.2.3.12, 6.3.0.3

Fixed in the same release

Records fixed by the same vendor advisory or release, as the CNA lists them.

  • Release ·

    Cisco Firepower Threat Defense (FTD) Software 6.2.3.12, 6.3.0.3

    8 records Highest priority Priority MEDIUM 4 MEDIUM, 4 LOW

    Other records, highest priority first

    • TI-2019-01320 Improper input validation in Cisco Adaptive Security Appliance SoftwarePriority MEDIUM 48
    • TI-2019-01340 Credentials management flaw in Cisco Adaptive Security Appliance SoftwarePriority MEDIUM 47
    • TI-2019-01334 Memory leak in Cisco Adaptive Security Appliance SoftwarePriority MEDIUM 47
    Show all 8 records →
  • Release ·

    Cisco Adaptive Security Appliance (ASA) Software 9.10.1.17, 9.4.4.34 and 3 more versions

    5 records Highest priority Priority MEDIUM 2 MEDIUM, 3 LOW

    Other records, highest priority first

    • TI-2019-01320 Improper input validation in Cisco Adaptive Security Appliance SoftwarePriority MEDIUM 48
    • TI-2019-01339 Cisco Adaptive Security Appliance Software Cross-Site Request Forgery VulnerabilityPriority MEDIUM 40
    • TI-2019-01331 Cisco Adaptive Security Appliance Software VPN Denial of Service VulnerabilityPriority LOW 36
    Show all 5 records →

Timeline

  1. 2026-10-02 Threatist record created from CVE-2019-1693
  2. 2026-10-03 Alias added: GHSA-3cqj-jcvx-xhxr

References

Advisory 1

  • TI-2025-14628 Buffer overflow in Cisco Secure Firewall Adaptive Security Appliance Software KEVCVSS 3.1CRITICAL 9.9
  • TI-2016-05454 Buffer overflow in Cisco Adaptive Security Appliance (ASA) Software through 9.4.2.3 on… KEVCVSS 3.1HIGH 8.8
  • TI-2023-06973 Authentication bypass in Cisco Adaptive Security Appliance Software KEVCVSS 3.1CRITICAL 9.1
  • TI-2026-82192 Denial of service in Cisco Secure Firewall ASA and FTD SSL VPN KEVCVSS 3.1HIGH 8.6
  • TI-2026-16533 Cisco Secure Firewall Adaptive Security Appliance and Secure Firewall Threat Defense… KEVCVSS 3.1HIGH 8.6
  • TI-2025-14657 Missing authorization in Cisco Secure Firewall Adaptive Security Appliance Software KEVCVSS 3.1HIGH 8.6
See all 354 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences