CVE-2021-40114
6.8 · MEDIUMOverview
CVE-2021-40114 is a medium-severity vulnerability affecting cisco secure_firewall_management_center. It was published on October 27, 2021 and has a CVSS 3.1 base score of 6.8 (MEDIUM).
This vulnerability has a CVSS 3.1 base score of 6.8, rated MEDIUM. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.
Technical Description
Multiple Cisco products are affected by a vulnerability in the way the Snort detection engine processes ICMP traffic that could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device. The vulnerability is due to improper memory resource management while the Snort detection engine is processing ICMP packets. An attacker could exploit this vulnerability by sending a series of ICMP packets through an affected device. A successful exploit could allow the attacker to exhaust resources on the affected device, causing the device to reload.
Remediation
Check the references section for vendor advisories and patches from cisco. Update secure_firewall_management_center to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
Affected Products
| Vendor | Product | Versions | Status |
|---|---|---|---|
| cisco | secure_firewall_threat_defense | >= 0, < 6.4.0.12 | Affected |
| cisco | unified_threat_defense | >= 16.12, < 16.12.6 | Affected |
| snort | snort | >= 2.0.0, < 2.9.18 | Affected |
References
Frequently Asked Questions
What is CVE-2021-40114?
CVE-2021-40114 is a medium-severity vulnerability affecting cisco secure_firewall_management_center. It was published on October 27, 2021 and has a CVSS 3.1 base score of 6.8 (MEDIUM).
How severe is CVE-2021-40114?
This vulnerability has a CVSS 3.1 base score of 6.8, rated MEDIUM. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.
How do I fix or remediate CVE-2021-40114?
Check the references section for vendor advisories and patches from cisco. Update secure_firewall_management_center to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
How can CyberStrike help with CVE-2021-40114?
CyberStrike's AI-powered security agents can automatically detect CVE-2021-40114 across your infrastructure using autonomous pentesting, DAST scanning, and HackBrowser. The platform continuously monitors for known vulnerabilities and provides actionable remediation guidance prioritized by real-world exploitability.
How CyberStrike Helps
AI agents map your attack surface to find vulnerabilities like this one.
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