CVE-2021-40125

score

<0.1

cvss

5.3

epss

1.0%

published

2021-10-27

kev added

—

first seen

2026-10-21

Cisco ASA and FTD Software contain a denial of service caused by improper control of resources in IKEv2 implementation, letting authenticated remote attackers trigger device reload, exploit requires spoofed trusted VPN peer and valid credentials.