Memory leak in Cisco Adaptive Security Appliance Software
Key facts
- Attack vector
- Network
- Privileges required
- None
- 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-404.
Summary
A vulnerability in the Internet Key Exchange Version 2 Mobility and Multihoming Protocol (MOBIKE) feature for the Cisco Adaptive Security Appliance (ASA) Software and Cisco Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to cause a memory leak or a reload of an affected device that leads to a denial of service (DoS) condition. The vulnerability is due to the incorrect processing of certain MOBIKE packets. An attacker could exploit this vulnerability by sending crafted MOBIKE packets to an affected device to be processed. A successful exploit could cause an affected device to continuously consume memory and eventually reload, resulting in a DoS condition. The MOBIKE feature is supported only for IPv4 addresses.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- Yes
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Cisco | Cisco Adaptive Security Appliance (ASA) Software | before 9.8.4; before 9.9.2.50; before 9.10.1.17 | 9.8.4, 9.9.2.50, 9.10.1.17 | Patch available | CNA |
| Cisco | Cisco Firepower Threat Defense (FTD) Software | before 6.2.3.12; before 6.3.0.3 | 6.2.3.12, 6.3.0.3 | Patch available | CNA |
- Cisco Adaptive Security Appliance (ASA) Software VendorCisco Affected before 9.8.4; before 9.9.2.50; before 9.10.1.17 Fixed in 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 · 10
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:cisco:secure_firewall_threat_defense:*:*:*:*:*:*:*:* | 6.2.2 – 6.2.3.12; 6.3.0 – 6.3.0.3 | Vulnerable | Cisco |
| cpe:2.3:o:cisco:adaptive_security_appliance_software:*:*:*:*:*:*:*:* | 9.8 – 9.8.4; 9.9 – 9.9.2.50; 9.10 – 9.10.1.17 | Vulnerable | Cisco |
| cpe:2.3:h:cisco:asa-5506-x:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Cisco |
| cpe:2.3:h:cisco:asa-5525-x:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Cisco |
| cpe:2.3:h:cisco:asa-5555-x:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Cisco |
| cpe:2.3:h:cisco:asa_5506h-x:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Cisco |
| cpe:2.3:h:cisco:asa_5506w-x:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Cisco |
| cpe:2.3:h:cisco:asa_5508-x:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Cisco |
| cpe:2.3:h:cisco:asa_5516-x:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Cisco |
| cpe:2.3:h:cisco:asa_5545-x:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Cisco |
- cpe:2.3:a:cisco:secure_firewall_threat_defense:*:*:*:*:*:*:*:* Versions 6.2.2 – 6.2.3.12; 6.3.0 – 6.3.0.3 Vulnerable ·Cisco
- cpe:2.3:o:cisco:adaptive_security_appliance_software:*:*:*:*:*:*:*:* Versions 9.8 – 9.8.4; 9.9 – 9.9.2.50; 9.10 – 9.10.1.17 Vulnerable ·Cisco
- cpe:2.3:h:cisco:asa-5506-x:-:*:*:*:*:*:*:* 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-5555-x:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Cisco
- cpe:2.3:h:cisco:asa_5506h-x:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Cisco
- cpe:2.3:h:cisco:asa_5506w-x:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Cisco
- cpe:2.3:h:cisco:asa_5508-x:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Cisco
- cpe:2.3:h:cisco:asa_5516-x:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Cisco
- cpe:2.3:h:cisco:asa_5545-x:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Cisco
Remediation
- Fix · CNA Cisco Adaptive Security Appliance (ASA) Software (Cisco) Fixed in 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-2019-01341 Cisco Adaptive Security Appliance Software and Firepower Threat Defense Software Low-Entropy Keys VulnerabilityPriority MEDIUM 42
- Release ·
Cisco Adaptive Security Appliance (ASA) Software 9.10.1.17, 9.8.4, 9.9.2.50
3 records Highest priority Priority MEDIUM 2 MEDIUM, 1 LOW
Other records, highest priority first
- TI-2019-01340 Credentials management flaw in Cisco Adaptive Security Appliance SoftwarePriority MEDIUM 47
- TI-2019-01321 Cisco Adaptive Security Appliance and Firepower Threat Defense Software Layer 2 Filtering Bypass VulnerabilityPriority LOW 30
Timeline
- 2026-10-02 Threatist record created from CVE-2019-1708
- 2026-10-03 Alias added: GHSA-hjw3-6ghp-6f5f
References
More Cisco Adaptive Security Appliance Software vulnerabilities
- 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
Sources
- CVE-2019-1708 · CVE Program
- CVE-2019-1708 · NVD
- FIRST EPSS
- GHSA-hjw3-6ghp-6f5f · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences