A vulnerability in the SSH subsystem of Cisco Adaptive Security Appliance (ASA) Software could allow an authenticated, remote attacker to execute operating system commands as root. This vulnerability is due to insufficient validation of user input. An attacker could exploit this vulnerability by submitting crafted input when executing remote CLI commands over SSH. A successful exploit could allow the attacker to execute commands on the underlying operating system with root-level privileges. An attacker with limited user privileges could use this vulnerability to gain complete control over the system.
Conclusion & alert: CVE-2024-20329 is rated High Risk (69.7/100): CVSS Critical severity, with medium exploitation likelihood (EPSS 2.57%). Mandatory action: High exploitation likelihood—assess exposure and prioritize remediation.
Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.
EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).
| # | Date | Old EPSS score | New EPSS score | Delta (New - Old) |
|---|---|---|---|---|
| 1 | 2026-03-16 | 2.35% | 2.57% | +0.22% |
| 2 | 2026-03-14 | 1.92% | 2.35% | +0.43% |
| 3 | 2026-03-01 | — | 1.92% | — |
Full EPSS history (21 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 9.9 | 3.1 | CRITICAL |
|
3.1 | 6.0 | [email protected] |
| Vendor | Product | Version | Raw CPE |
|---|---|---|---|
| cisco | adaptive_security_appliance_software | 9.17.1 | cpe:2.3:o:cisco:adaptive_security_appliance_software:9.17.1:*:*:*:*:*:*:* |
| cisco | adaptive_security_appliance_software | 9.17.1.7 | cpe:2.3:o:cisco:adaptive_security_appliance_software:9.17.1.7:*:*:*:*:*:*:* |
| cisco | adaptive_security_appliance_software | 9.17.1.9 | cpe:2.3:o:cisco:adaptive_security_appliance_software:9.17.1.9:*:*:*:*:*:*:* |
| cisco | adaptive_security_appliance_software | 9.17.1.10 | cpe:2.3:o:cisco:adaptive_security_appliance_software:9.17.1.10:*:*:*:*:*:*:* |
| cisco | adaptive_security_appliance_software | 9.17.1.11 | cpe:2.3:o:cisco:adaptive_security_appliance_software:9.17.1.11:*:*:*:*:*:*:* |
| cisco | adaptive_security_appliance_software | 9.17.1.13 | cpe:2.3:o:cisco:adaptive_security_appliance_software:9.17.1.13:*:*:*:*:*:*:* |
| cisco | adaptive_security_appliance_software | 9.17.1.15 | cpe:2.3:o:cisco:adaptive_security_appliance_software:9.17.1.15:*:*:*:*:*:*:* |
| cisco | adaptive_security_appliance_software | 9.17.1.20 | cpe:2.3:o:cisco:adaptive_security_appliance_software:9.17.1.20:*:*:*:*:*:*:* |
| cisco | adaptive_security_appliance_software | 9.17.1.30 | cpe:2.3:o:cisco:adaptive_security_appliance_software:9.17.1.30:*:*:*:*:*:*:* |
| cisco | adaptive_security_appliance_software | 9.17.1.33 | cpe:2.3:o:cisco:adaptive_security_appliance_software:9.17.1.33:*:*:*:*:*:*:* |
| cisco | adaptive_security_appliance_software | 9.18.1 | cpe:2.3:o:cisco:adaptive_security_appliance_software:9.18.1:*:*:*:*:*:*:* |
| cisco | adaptive_security_appliance_software | 9.18.1.3 | cpe:2.3:o:cisco:adaptive_security_appliance_software:9.18.1.3:*:*:*:*:*:*:* |
| cisco | adaptive_security_appliance_software | 9.18.2 | cpe:2.3:o:cisco:adaptive_security_appliance_software:9.18.2:*:*:*:*:*:*:* |
| cisco | adaptive_security_appliance_software | 9.18.2.5 | cpe:2.3:o:cisco:adaptive_security_appliance_software:9.18.2.5:*:*:*:*:*:*:* |
| cisco | adaptive_security_appliance_software | 9.18.2.7 | cpe:2.3:o:cisco:adaptive_security_appliance_software:9.18.2.7:*:*:*:*:*:*:* |
| cisco | adaptive_security_appliance_software | 9.18.2.8 | cpe:2.3:o:cisco:adaptive_security_appliance_software:9.18.2.8:*:*:*:*:*:*:* |
| cisco | adaptive_security_appliance_software | 9.18.3 | cpe:2.3:o:cisco:adaptive_security_appliance_software:9.18.3:*:*:*:*:*:*:* |
| cisco | adaptive_security_appliance_software | 9.18.3.39 | cpe:2.3:o:cisco:adaptive_security_appliance_software:9.18.3.39:*:*:*:*:*:*:* |
| cisco | adaptive_security_appliance_software | 9.18.3.46 | cpe:2.3:o:cisco:adaptive_security_appliance_software:9.18.3.46:*:*:*:*:*:*:* |
| cisco | adaptive_security_appliance_software | 9.18.3.53 | cpe:2.3:o:cisco:adaptive_security_appliance_software:9.18.3.53:*:*:*:*:*:*:* |
| cisco | adaptive_security_appliance_software | 9.18.3.55 | cpe:2.3:o:cisco:adaptive_security_appliance_software:9.18.3.55:*:*:*:*:*:*:* |
| cisco | adaptive_security_appliance_software | 9.18.3.56 | cpe:2.3:o:cisco:adaptive_security_appliance_software:9.18.3.56:*:*:*:*:*:*:* |
| cisco | adaptive_security_appliance_software | 9.19.1 | cpe:2.3:o:cisco:adaptive_security_appliance_software:9.19.1:*:*:*:*:*:*:* |
| cisco | adaptive_security_appliance_software | 9.19.1.5 | cpe:2.3:o:cisco:adaptive_security_appliance_software:9.19.1.5:*:*:*:*:*:*:* |
| cisco | adaptive_security_appliance_software | 9.19.1.9 | cpe:2.3:o:cisco:adaptive_security_appliance_software:9.19.1.9:*:*:*:*:*:*:* |
| cisco | adaptive_security_appliance_software | 9.19.1.12 | cpe:2.3:o:cisco:adaptive_security_appliance_software:9.19.1.12:*:*:*:*:*:*:* |
| cisco | adaptive_security_appliance_software | 9.19.1.18 | cpe:2.3:o:cisco:adaptive_security_appliance_software:9.19.1.18:*:*:*:*:*:*:* |