CVE-2020-3571 is a denial-of-service vulnerability in Cisco Firepower Threat Defense (FTD) Software for Firepower 4100 Series appliances, caused by incomplete input validation of ICMP packets. An unauthenticated, remote attacker can exploit this by sending a high volume of crafted ICMP or ICMPv6 packets, leading to memory exhaustion and an unexpected device reload. Rated 8.6 HIGH (CVSSv3.1), this vulnerability requires no user interaction and has a high impact on availability. There is no evidence of active exploitation, public exploit code, or significant community discussion.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
>= 6.3.0, < 6.3.0.6CPE matchmatch criteria | cpe:2.3:a:cisco:firepower_threat_defense:*:*:*:*:*:*:*:* | ||
>= 6.4.0, < 6.4.0.10CPE matchmatch criteria | cpe:2.3:a:cisco:firepower_threat_defense:*:*:*:*:*:*:*:* | ||
>= 6.5.0, < 6.5.0.5CPE matchmatch criteria | cpe:2.3:a:cisco:firepower_threat_defense:*:*:*:*:*:*:*:* |
CVSS version used by this source: 3.0
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H
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