A vulnerability in the payload inspection for Ethernet Industrial Protocol (ENIP) traffic for Cisco Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to bypass configured rules for ENIP traffic.
This vulnerability is due to incomplete processing during deep packet inspection for ENIP packets. An attacker could exploit this vulnerability by sending a crafted ENIP packet to the targeted interface. A successful exploit could allow the attacker to bypass configured access control and intrusion policies that should trigger and drop for the ENIP packet.
References
| Link | Resource |
|---|---|
| https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ftd-enip-bypass-eFsxd8KP | Vendor Advisory |
Configurations
Configuration 1 (hide)
|
History
07 Aug 2025, 18:04
| Type | Values Removed | Values Added |
|---|---|---|
| First Time |
Cisco firepower Threat Defense Software
Cisco |
|
| CWE | ||
| References | () https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ftd-enip-bypass-eFsxd8KP - Vendor Advisory | |
| CPE | cpe:2.3:a:cisco:firepower_threat_defense_software:7.0.0:*:*:*:*:*:*:* cpe:2.3:a:cisco:firepower_threat_defense_software:*:*:*:*:*:*:*:* |
|
| CVSS |
v2 : v3 : |
v2 : unknown
v3 : 5.3 |
15 Nov 2024, 17:15
| Type | Values Removed | Values Added |
|---|---|---|
| New CVE |
Information
Published : 2024-11-15 17:15
Updated : 2025-08-07 18:04
NVD link : CVE-2021-34753
Mitre link : CVE-2021-34753
JSON object : View
Products Affected
cisco
- firepower_threat_defense_software
CWE
No CWE.