CVE-2022-20751 describes a denial-of-service vulnerability in the Snort detection engine integration for Cisco Firepower Threat Defense (FTD) Software. An unauthenticated, remote attacker can exploit this flaw by sending crafted IP packets, leading to unlimited memory consumption and potentially causing the device to reload or interrupt all traffic. With a CVSS score of 7.5 (HIGH), this vulnerability has a low attack complexity and a high impact on availability. There is currently no evidence of active exploitation, public exploit code, or significant community discussion surrounding this CVE.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
< 6.4.0.15CPE matchmatch criteria | cpe:2.3:a:cisco:firepower_threat_defense:*:*:*:*:*:*:*:* | ||
>= 6.5.0, < 6.6.5.2CPE matchmatch criteria | cpe:2.3:a:cisco:firepower_threat_defense:*:*:*:*:*:*:*:* | ||
>= 7.0.0, < 7.0.2CPE matchmatch criteria | cpe:2.3:a:cisco:firepower_threat_defense:*:*:*:*:*:*:*:* | ||
7.1.0.0CPE matchmatch criteria | cpe:2.3:a:cisco:firepower_threat_defense:7.1.0.0:*:*:*:*:*:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H
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The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.