CVE-2026-20016
Description
A vulnerability in the Cisco FXOS Software CLI feature for Cisco Secure Firewall ASA Software and Secure FTD Software could allow an authenticated, local attacker to execute arbitrary commands on the underlying operating system with root-level privileges. To exploit this vulnerability, the attacker must have valid administrative credentials on an affected device. This vulnerability is due to insufficient input validation of user-supplied command arguments. An attacker could exploit this vulnerability by submitting crafted input for specific CLI commands. A successful exploit could allow the attacker to execute commands on the underlying operating system with root-level privileges.
Predictions
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
No mitigations published for this CVE yet.
The vendor-content worker queues fetches as references arrive (check back in a few minutes). Or — if you've already worked around this in production — publish your fix to the community-verified tier.
✚ Propose a mitigation on Community → Mitigations published via the community go through AI scoring + 2 human reviewers + 7-day silent objection window before landing here withsource_tier=community-verified.
Application impact
| Vendor | Product | Versions | Fixed |
|---|---|---|---|
| cisco | firepower_threat_defense_software | {"startIncluding":"6.4.0","endExcluding":"7.0.9"} | 7.0.9 |
| cisco | firepower_threat_defense_software | {"startIncluding":"7.1.0","endExcluding":"7.2.11"} | 7.2.11 |
| cisco | firepower_threat_defense_software | {"startIncluding":"7.3.0","endExcluding":"7.4.3"} | 7.4.3 |
| cisco | firepower_threat_defense_software | {"startIncluding":"7.6.0","endExcluding":"7.6.4"} | 7.6.4 |
| cisco | firepower_threat_defense_software | {"startIncluding":"7.7.0","endExcluding":"7.7.11"} | 7.7.11 |
References
CWEs
CWE-88
Community-verified mitigations for this CVE will appear above when contributors publish them.
Verify integrity in audit chain (admin only). AS-IS.