Vulnerability in Cisco Firepower Threat Defense Software
CVE-2021-34754
Multiple vulnerabilities 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. These vulnerabilities are due to incomplete processing during deep packet inspection for ENIP packets. An attacker could exploit these vulnerabilities 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 be activated for the ENIP packet.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.8 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:N.
EPSS exploit prediction
EPSS: 0.010 (61.9th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 62nd percentile — 61.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.010 · newest: 0.010 · change: +0.000
Affected products
- Cisco Firepower Threat Defense Software
- Cisco Firepower Threat Defense
- Cisco Secure Firewall Management Center — versions 2.9.12, 2.9.14.0, 2.9.16
- Cisco Secure Firewall Threat Defense
Weakness classification (CWE)
References
- tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ftd-enip… (vendor-advisory, Vendor Advisory)
Frequently asked questions
- What is CVE-2021-34754?
- CVE-2021-34754 is a medium-severity vulnerability in Cisco Firepower Threat Defense Software, classified under Improper Access Control. CVSS score: 5.8/10. Published 2021-10-27.
- How severe is CVE-2021-34754?
- Medium severity. CVSS v3 base score is 5.8 out of 10.