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Severity
High
Analysis Summary
CVE-2021-1422
Cisco Adaptive Security Appliance Software and Firepower Threat Defense Software are vulnerable to a denial of service, caused by a logic error when the software cryptography module handles specific types of decryption errors. By sending specially-crafted packets over an established IPsec connection, a remote authenticated attacker could exploit this vulnerability to cause the device to crash, and forcing it to reload.
Impact
- Denial of Service
Affected Vendors
Cisco
Affected Products
- Cisco Adaptive Security Appliance Software 9.16.1
- Cisco Firepower Threat Defense Software 7.0.0
Remediation
Refer to for patch, upgrade, or suggested workaround information.