Vulnerability in Cisco 1100_integrated_services_router
CVE-2020-3421
Multiple vulnerabilities in the Zone-Based Firewall feature of Cisco IOS XE Software could allow an unauthenticated, remote attacker to cause the device to reload or stop forwarding traffic through the firewall. The vulnerabilities are due…
EPSS: 0.019 (77.1th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 8.6 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H.
Affected products
- Cisco 1100_integrated_services_router
- Cisco 1101_integrated_services_router
- Cisco 1109_integrated_services_router
- Cisco 1111x_integrated_services_router
- Cisco 111x_integrated_services_router
- Cisco 1120_integrated_services_router
- Cisco 1160_integrated_services_router
- Cisco 4221_integrated_services_router
- Cisco 4321_integrated_services_router
- Cisco 4331_integrated_services_router
Weakness classification (CWE)
References
- psirt@cisco.com (x_refsource_CISCO, vendor-advisory, Vendor Advisory)
Frequently asked questions
- What is CVE-2020-3421?
- CVE-2020-3421 is a high-severity vulnerability in Cisco 1100_integrated_services_router, classified under Improper Check for Unusual or Exceptional Conditions. CVSS score: 8.6/10. Published 2020-09-24.
- How severe is CVE-2020-3421?
- High severity. CVSS v3 base score is 8.6 out of 10.