What is CVE-2020-3571?

CVE-2020-3571 is a high-severity vulnerability in Cisco Firepower Threat Defense Software, classified under Uncontrolled Resource Consumption. CVSS score: 8.6/10. Published 2020-10-21.

How severe is CVE-2020-3571?

High severity. CVSS v3 base score is 8.6 out of 10.

Resource exhaustion in Cisco Firepower Threat Defense Software

CVE-2020-3571

A vulnerability in the ICMP ingress packet processing of Cisco Firepower Threat Defense (FTD) Software for Cisco Firepower 4110 appliances could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an a…

Vulnerability class: DoS (Denial of Service)

EPSS: 0.014 (68.2th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 8.6 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H.

Affected products

Cisco Firepower Threat Defense Software — versions n/a
Cisco Firepower_4110
Cisco Firepower_4112
Cisco Firepower_4115
Cisco Firepower_4120
Cisco Firepower_4125
Cisco Firepower_4140
Cisco Firepower_4145
Cisco Firepower_4150
Cisco Firepower_threat_defense

Weakness classification (CWE)

CWE-400 — Uncontrolled Resource Consumption
CWE-20 — Improper Input Validation

References

psirt@cisco.com (x_refsource_CISCO, vendor-advisory, Vendor Advisory)

Frequently asked questions

What is CVE-2020-3571?: CVE-2020-3571 is a high-severity vulnerability in Cisco Firepower Threat Defense Software, classified under Uncontrolled Resource Consumption. CVSS score: 8.6/10. Published 2020-10-21.
How severe is CVE-2020-3571?: High severity. CVSS v3 base score is 8.6 out of 10.