632
VMScore

CVE-2021-40116

Published: 27/10/2021 Updated: 07/11/2023
CVSS v2 Base Score: 7.1 | Impact Score: 6.9 | Exploitability Score: 8.6
CVSS v3 Base Score: 7.5 | Impact Score: 3.6 | Exploitability Score: 3.9
VMScore: 632
Vector: AV:N/AC:M/Au:N/C:N/I:N/A:C

Vulnerability Summary

Multiple Cisco products are affected by a vulnerability in Snort rules that could allow an unauthenticated, remote malicious user to cause a denial of service (DoS) condition on an affected device.The vulnerability is due to improper handling of the Block with Reset or Interactive Block with Reset actions if a rule is configured without proper constraints. An attacker could exploit this vulnerability by sending a crafted IP packet to the affected device. A successful exploit could allow the malicious user to cause through traffic to be dropped. Note: Only products with Snort3 configured and either a rule with Block with Reset or Interactive Block with Reset actions configured are vulnerable. Products configured with Snort2 are not vulnerable.

Vulnerability Trend

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cisco firepower threat defense

cisco firepower management center 3.1.0.1

snort snort

Vendor Advisories

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 deviceThe vulnerability is due to improper handling of the Block with Reset or Interactive Block with Reset actions if a rule is configured without proper constraint ...