CVE-2021-34790

score

<0.1

cvss

4.7

epss

1.1%

published

2021-10-27

kev added

—

first seen

2026-10-21

Cisco ASA and FTD Software contain multiple vulnerabilities in the Application Level Gateway (ALG) for NAT, causing a bypass that allows unauthenticated attackers to open unauthorized connections behind the ALG, exploit requires network access to the device.