Cisco Adaptive Security Appliance Direct Memory Access Denial of Service Vulnerability
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
- No fix listed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-400.
Summary
A vulnerability in the cryptographic hardware accelerator driver of Cisco Adaptive Security Appliance (ASA) Software and Cisco Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to cause an affected device to reload, resulting in a temporary denial of service (DoS) condition. The vulnerability exists because the affected devices have a limited amount of Direct Memory Access (DMA) memory and the affected software improperly handles resources in low-memory conditions. An attacker could exploit this vulnerability by sending a sustained, high rate of malicious traffic to an affected device to exhaust memory on the device. A successful exploit could allow the attacker to exhaust DMA memory on the affected device, which could cause the device to reload and result in a temporary DoS condition.
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 | all versions | — | No fix listed | CNA |
- Cisco Adaptive Security Appliance (ASA) Software VendorCisco Affected all versions Fixed in — No fix listed CNA
CPE configurations NVD · 15
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:cisco:firepower_threat_defense:6.0:*:*:*:*:*:*:* | 6.0 | Vulnerable | Cisco |
| cpe:2.3:a:cisco:secure_firewall_threat_defense:6.0.1:*:*:*:*:*:*:* | 6.0.1 | Vulnerable | Cisco |
| cpe:2.3:a:cisco:secure_firewall_threat_defense:6.1.0:*:*:*:*:*:*:* | 6.1.0 | Vulnerable | Cisco |
| cpe:2.3:a:cisco:secure_firewall_threat_defense:6.2.0:*:*:*:*:*:*:* | 6.2.0 | Vulnerable | Cisco |
| cpe:2.3:a:cisco:secure_firewall_threat_defense:6.2.2:*:*:*:*:*:*:* | 6.2.2 | Vulnerable | Cisco |
| cpe:2.3:a:cisco:secure_firewall_threat_defense:6.2.3:*:*:*:*:*:*:* | 6.2.3 | Vulnerable | Cisco |
| cpe:2.3:o:cisco:adaptive_security_appliance_software:9.3:*:*:*:*:*:*:* | 9.3 | Vulnerable | Cisco |
| cpe:2.3:o:cisco:adaptive_security_appliance_software:9.4:*:*:*:*:*:*:* | 9.4 | Vulnerable | Cisco |
| cpe:2.3:o:cisco:adaptive_security_appliance_software:9.5:*:*:*:*:*:*:* | 9.5 | Vulnerable | Cisco |
| cpe:2.3:o:cisco:adaptive_security_appliance_software:9.6:*:*:*:*:*:*:* | 9.6 | Vulnerable | Cisco |
- cpe:2.3:a:cisco:firepower_threat_defense:6.0:*:*:*:*:*:*:* Versions 6.0 Vulnerable ·Cisco
- cpe:2.3:a:cisco:secure_firewall_threat_defense:6.0.1:*:*:*:*:*:*:* Versions 6.0.1 Vulnerable ·Cisco
- cpe:2.3:a:cisco:secure_firewall_threat_defense:6.1.0:*:*:*:*:*:*:* Versions 6.1.0 Vulnerable ·Cisco
- cpe:2.3:a:cisco:secure_firewall_threat_defense:6.2.0:*:*:*:*:*:*:* Versions 6.2.0 Vulnerable ·Cisco
- cpe:2.3:a:cisco:secure_firewall_threat_defense:6.2.2:*:*:*:*:*:*:* Versions 6.2.2 Vulnerable ·Cisco
- cpe:2.3:a:cisco:secure_firewall_threat_defense:6.2.3:*:*:*:*:*:*:* Versions 6.2.3 Vulnerable ·Cisco
- cpe:2.3:o:cisco:adaptive_security_appliance_software:9.3:*:*:*:*:*:*:* Versions 9.3 Vulnerable ·Cisco
- cpe:2.3:o:cisco:adaptive_security_appliance_software:9.4:*:*:*:*:*:*:* Versions 9.4 Vulnerable ·Cisco
- cpe:2.3:o:cisco:adaptive_security_appliance_software:9.5:*:*:*:*:*:*:* Versions 9.5 Vulnerable ·Cisco
- cpe:2.3:o:cisco:adaptive_security_appliance_software:9.6:*:*:*:*:*:*:* Versions 9.6 Vulnerable ·Cisco
Show 5 more CPE
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:cisco:adaptive_security_appliance_software:9.6\(43\):*:*:*:*:*:*:* | 9.6(43) | Vulnerable | Cisco |
| cpe:2.3:o:cisco:adaptive_security_appliance_software:9.7:*:*:*:*:*:*:* | 9.7 | Vulnerable | Cisco |
| cpe:2.3:o:cisco:adaptive_security_appliance_software:9.8:*:*:*:*:*:*:* | 9.8 | Vulnerable | Cisco |
| cpe:2.3:o:cisco:adaptive_security_appliance_software:9.9:*:*:*:*:*:*:* | 9.9 | Vulnerable | Cisco |
| cpe:2.3:o:cisco:adaptive_security_appliance_software:9.9\(28\):*:*:*:*:*:*:* | 9.9(28) | Vulnerable | Cisco |
- cpe:2.3:o:cisco:adaptive_security_appliance_software:9.6\(43\):*:*:*:*:*:*:* Versions 9.6(43) Vulnerable ·Cisco
- cpe:2.3:o:cisco:adaptive_security_appliance_software:9.7:*:*:*:*:*:*:* Versions 9.7 Vulnerable ·Cisco
- cpe:2.3:o:cisco:adaptive_security_appliance_software:9.8:*:*:*:*:*:*:* Versions 9.8 Vulnerable ·Cisco
- cpe:2.3:o:cisco:adaptive_security_appliance_software:9.9:*:*:*:*:*:*:* Versions 9.9 Vulnerable ·Cisco
- cpe:2.3:o:cisco:adaptive_security_appliance_software:9.9\(28\):*:*:*:*:*:*:* Versions 9.9(28) Vulnerable ·Cisco
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2018-15383
- 2026-10-03 Alias added: GHSA-hmv9-9gm3-c2vc
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-2018-15383 · CVE Program
- CVE-2018-15383 · NVD
- FIRST EPSS
- GHSA-hmv9-9gm3-c2vc · 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