CVE-2026-20015
A vulnerability in the IKEv2 feature of Cisco Secure Firewall ASA Software and Cisco Secure FTD Software could allow an unauthenticated, remote attacker to cau…
Impact
A vulnerability in the IKEv2 feature of Cisco Secure Firewall ASA Software and Cisco Secure FTD Software could allow an unauthenticated, remote attacker to cause a DoS condition on an affected device that may impact the availability of services to devices elsewhere in the network. This vulnerability is due to a memory leak when parsing IKEv2 packets. An attacker could exploit this vulnerability by sending crafted IKEv2 packets to an affected device. A successful exploit could allow the attacker to exhaust resources, causing a DoS condition that will eventually require the device to be manually reloaded.
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Cisco | Adaptive Security Appliance Software | from 9.18.1 before 9.18.4.71 from 9.19.1 before 9.20.4.10 from 9.22.1.1 before 9.22.2.13 from 9.23.1 before 9.23.1.19 |
| Cisco | Secure Firewall Threat Defense | from 7.2.0 before 7.2.11 from 7.3.0 before 7.4.3 from 7.6.0 before 7.6.4 from 7.7.0 before 7.7.11 |