CVE-2021-40114 is a denial-of-service vulnerability in Cisco products utilizing the Snort detection engine, including Firepower Threat Defense and Secure Firewall Management Center. This flaw, rated 7.5 High, allows an unauthenticated, remote attacker to exhaust device resources and cause a reload by sending specially crafted ICMP packets. While there are no known public exploits or active exploitation, the vulnerability has garnered some community discussion and media coverage.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
< 6.4.0.12CPE matchmatch criteria | cpe:2.3:a:cisco:firepower_threat_defense:*:*:*:*:*:*:*:* | ||
>= 6.5.0, < 6.6.3CPE matchmatch criteria | cpe:2.3:a:cisco:firepower_threat_defense:*:*:*:*:*:*:*:* | ||
>= 6.7.0, < 6.7.0.2CPE matchmatch criteria | cpe:2.3:a:cisco:firepower_threat_defense:*:*:*:*:*:*:*:* | ||
2.9.14.0CPE matchmatch criteria | cpe:2.3:a:cisco:secure_firewall_management_center:2.9.14.0:*:*:*:*:*:*:* | ||
2.9.15CPE matchmatch criteria | cpe:2.3:a:cisco:secure_firewall_management_center:2.9.15:*:*:*:*:*:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:N/A:H
The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.
The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.