CVSS 3.1
7.5 highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:HCVE-2021-34792
High (7.5) in cisco. EPSS 1.4% chance of exploitation in the next 30 days.
A vulnerability in the memory management of Cisco Adaptive Security Appliance (ASA) Software and Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device. This vulnerability is due to improper resource management when connection rates are high. An attacker could exploit this vulnerability by opening a significant number of connections on an affected device. A successful exploit could allow the attacker to cause the device to reload, resulting in a DoS condition.
Severity
- EPSS
- 1.4% chance of exploitation in the next 30 days; higher than 73% of CVEs (scores of 2026-10-31)
- CWEs
- CWE-401, CWE-400
- Published
- Modified
- Record from
- the NVD, synced
Affected
- cisco:adaptive_security_appliance_software
- cisco:asa_5505_firmware
- cisco:asa_5512-x_firmware
- cisco:asa_5515-x_firmware
- cisco:asa_5525-x_firmware
- cisco:asa_5545-x_firmware
- cisco:asa_5555-x_firmware
- cisco:asa_5580_firmware
- cisco:asa_5585-x_firmware
- cisco:secure_firewall_threat_defense