CVE-2020-3557 describes a denial-of-service vulnerability in Cisco Firepower Management Center (FMC) Software, specifically affecting the host input API daemon. This flaw, stemming from improper certificate validation, allows an unauthenticated, remote attacker to repeatedly restart the daemon by sending crafted data, leading to a continuous DoS condition for the API. Rated as Medium severity (CVSS 5.3), the attack is low complexity and requires no user interaction, though it only impacts availability. There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this CVE.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
< 6.6.1CPE matchmatch criteria | cpe:2.3:a:cisco:secure_firewall_management_center:*:*:*:*:*:*:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.4 GitHub mentions.
No media coverage found for this CVE.
The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.