What is CVE-2021-40116?

CVE-2021-40116 is a high-severity vulnerability in Cisco Firepower Threat Defense Software, classified under CWE-241. CVSS score: 8.6/10. Published 2021-10-27.

How severe is CVE-2021-40116?

High severity. CVSS v3 base score is 8.6 out of 10.

Vulnerability in Cisco Firepower Threat Defense Software

CVE-2021-40116

Multiple Cisco products are affected by a vulnerability in Snort rules 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 handling of…

EPSS: 0.013 (68.3th 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 Firepower Threat Defense Software — versions n/a
Cisco Firepower_threat_defense
Cisco Secure_firewall_management_center — versions 3.1.0.1
Cisco Snort

Weakness classification (CWE)

CWE-241

References

psirt@cisco.com (x_refsource_CISCO, vendor-advisory, Vendor Advisory)

Frequently asked questions

What is CVE-2021-40116?: CVE-2021-40116 is a high-severity vulnerability in Cisco Firepower Threat Defense Software, classified under CWE-241. CVSS score: 8.6/10. Published 2021-10-27.
How severe is CVE-2021-40116?: High severity. CVSS v3 base score is 8.6 out of 10.