cvedb.io
CVE-2019-1980
MEDIUM · CVSS 5.3
EPSS exploitation probability: 59%
Published 2019-11-05T20:15:11.690 · Last modified 2026-08-11T19:37:30.880

Summary

A vulnerability in the protocol detection component of Cisco Firepower Threat Defense Software, Cisco FirePOWER Services Software for ASA, and Cisco Firepower Management Center Software could allow an unauthenticated, remote attacker to bypass filtering protections. The vulnerability is due to improper detection of the initial use of a protocol on a nonstandard port. An attacker could exploit this vulnerability by sending traffic on a nonstandard port for the protocol in use through an affected device. An exploit could allow the attacker to bypass filtering and deliver malicious requests to protected systems that would otherwise be blocked. Once the initial protocol flow on the nonstandard port is detected, future flows on the nonstandard port will be successfully detected and handled as c

Affected products

cisco — firepower_services_software_for_asa

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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.