8.6highHigh
CVE-2021-1573
Cisco Adaptive Security Appliance
A vulnerability in the web services interface of Cisco Adaptive Security Appliance (ASA) Software and Cisco Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to trigger a denial of service (DoS) condition. This vulnerability is due to improper input validation when parsing HTTPS requests. An attacker could exploit this vulnerability by sending a malicious HTTPS request to an affected device. A successful exploit could allow the attacker to cause the device to reload, resulting in a DoS condition.
Exploitation status
- A vendor advisory or patch reference has been published.
What the metrics mean
- It is reachable over a network, without needing local access.
- For an attacker who can reach it, no special conditions are needed to exploit it.
- To exploit it, no account is needed.
- Beyond that, no action by a user is required.
Scoring
- CVSS
- 8.6 (v3.1)
- Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H- Weakness
- CWE-121
- Assigned by
- psirt@cisco.com
Dates
- Published
- 2022-01-11
- Last modified
- 2026-08-11
- Sources
- NVD
Affected products
- Cisco Adaptive Security Appliance- 9.7
- Cisco Secure Firewall Threat Defense- 6.2.2, 6.2.3 - 6.4.0.13, 6.5.0 - 6.6.5, 6.7.0 - 6.7.0.3, 7.0.0
- Cisco Adaptive Security Appliance Software9.8 - 9.8.4.40, 9.9 - 9.12.4.26, 9.13 - 9.14.3, 9.15 - 9.15.1.17, 9.16 - 9.16.1.28
As listed in the NVD configuration data. Not a statement about your estate.