CVE-2024-20363

Multiple Cisco products are affected by a vulnerability in the Snort Intrusion Prevention System (IPS) rule engine that could allow an unauthenticated, remote attacker to bypass the configured rules on an affected system. This vulnerability is due to incorrect HTTP packet handling. An attacker could exploit this vulnerability by sending crafted HTTP packets through an affected device. A successful exploit could allow the attacker to bypass configured IPS rules and allow uninspected traffic onto the network.
CVSS

No CVSS.

Configurations

Configuration 1 (hide)

cpe:2.3:a:cisco:firepower_threat_defense:7.4.0:*:*:*:*:*:*:*

Configuration 2 (hide)

OR cpe:2.3:o:cisco:unified_threat_defense_snort_intrusion_prevention_system_engine:17.12.1a:*:*:*:*:*:*:*
cpe:2.3:o:cisco:unified_threat_defense_snort_intrusion_prevention_system_engine:17.12.2:*:*:*:*:*:*:*
cpe:2.3:o:cisco:unified_threat_defense_snort_intrusion_prevention_system_engine:17.6.4:*:*:*:*:*:*:*
cpe:2.3:o:cisco:unified_threat_defense_snort_intrusion_prevention_system_engine:17.6.5:*:*:*:*:*:*:*

Configuration 3 (hide)

cpe:2.3:a:cisco:snort:*:*:*:*:*:*:*:*

History

03 Jul 2025, 17:19

Type Values Removed Values Added
CPE cpe:2.3:o:cisco:unified_threat_defense_snort_intrusion_prevention_system_engine:17.6.4:*:*:*:*:*:*:*
cpe:2.3:o:cisco:unified_threat_defense_snort_intrusion_prevention_system_engine:17.12.1a:*:*:*:*:*:*:*
cpe:2.3:a:cisco:firepower_threat_defense:7.4.0:*:*:*:*:*:*:*
cpe:2.3:a:cisco:snort:*:*:*:*:*:*:*:*
cpe:2.3:o:cisco:unified_threat_defense_snort_intrusion_prevention_system_engine:17.12.2:*:*:*:*:*:*:*
cpe:2.3:o:cisco:unified_threat_defense_snort_intrusion_prevention_system_engine:17.6.5:*:*:*:*:*:*:*
First Time Cisco unified Threat Defense Snort Intrusion Prevention System Engine
Cisco snort
Cisco
Cisco firepower Threat Defense
References () https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-snort3-ips-bypass-uE69KBMd - () https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-snort3-ips-bypass-uE69KBMd - Vendor Advisory

22 May 2024, 17:16

Type Values Removed Values Added
New CVE

Information

Published : 2024-05-22 17:16

Updated : 2025-07-03 17:19


NVD link : CVE-2024-20363

Mitre link : CVE-2024-20363


JSON object : View

Products Affected

cisco

  • firepower_threat_defense
  • unified_threat_defense_snort_intrusion_prevention_system_engine
  • snort
CWE

No CWE.