CVE-2024-20353 is a denial-of-service vulnerability affecting Cisco Adaptive Security Appliance (ASA) Software and Firepower Threat Defense (FTD) Software. An unauthenticated, remote attacker can exploit incomplete error checking in HTTP header parsing to cause a device reload. This vulnerability has a CVSS score of 8.6 (HIGH) due to its network-based attack vector, low complexity, and high impact on availability. Critically, this CVE is actively exploited in the wild, as confirmed by its presence on CISA's KEV catalog, and has garnered significant community discussion and media coverage, despite no public exploit code being readily available.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
9.8.1CPE matchmatch criteria | cpe:2.3:o:cisco:adaptive_security_appliance_software:9.8.1:*:*:*:*:*:*:* | ||
9.8.1.5CPE matchmatch criteria | cpe:2.3:o:cisco:adaptive_security_appliance_software:9.8.1.5:*:*:*:*:*:*:* | ||
9.8.1.7CPE matchmatch criteria | cpe:2.3:o:cisco:adaptive_security_appliance_software:9.8.1.7:*:*:*:*:*:*:* | ||
9.8.2CPE matchmatch criteria | cpe:2.3:o:cisco:adaptive_security_appliance_software:9.8.2:*:*:*:*:*:*:* | ||
9.8.2.8CPE matchmatch criteria | cpe:2.3:o:cisco:adaptive_security_appliance_software:9.8.2.8:*:*:*:*:*:*:* |
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
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.