cvedb.io
CVE-2021-34790
MEDIUM · CVSS 4.7
EPSS exploitation probability: 0%
Published 2021-10-27T19:15:08.400 · Last modified 2026-06-17T03:56:34.627

Summary

Multiple vulnerabilities in the Application Level Gateway (ALG) for the Network Address Translation (NAT) feature of Cisco Adaptive Security Appliance (ASA) Software and Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to bypass the ALG and open unauthorized connections with a host located behind the ALG. For more information about these vulnerabilities, see the Details section of this advisory. Note: These vulnerabilities have been publicly discussed as NAT Slipstreaming.

Affected products

cisco — adaptive_security_appliance

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References

This product uses data from the NVD API but is not endorsed or certified by the NVD. Informational only; not professional security advice.