Vulnerability Monitor

The vendors, products, and vulnerabilities you care about

CVE-2021-40114

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.

Published

2021-10-27T19:15:08.667

Last Modified

2024-11-26T16:09:02.407

Status

Modified

Source

[email protected]

Severity

CVSSv3.1: 6.8 (MEDIUM)

CVSSv2 Vector

AV:N/AC:L/Au:N/C:N/I:N/A:C

  • Access Vector: NETWORK
  • Access Complexity: LOW
  • Authentication: NONE
  • Confidentiality Impact: NONE
  • Integrity Impact: NONE
  • Availability Impact: COMPLETE
Exploitability Score

10.0

Impact Score

6.9

Weaknesses
  • Type: Secondary
    CWE-770
  • Type: Primary
    CWE-401
Affected Vendors & Products
Type Vendor Product Version/Range Vulnerable?
Application cisco firepower_threat_defense < 6.4.0.12 Yes
Application cisco firepower_threat_defense < 6.6.3 Yes
Application cisco firepower_threat_defense < 6.7.0.2 Yes
Application cisco secure_firewall_management_center 2.9.14.0 Yes
Application cisco secure_firewall_management_center 2.9.15 Yes
Application cisco secure_firewall_management_center 2.9.16 Yes
Application cisco secure_firewall_management_center 2.9.17 Yes
Application cisco unified_threat_defense < 16.12.6 Yes
Application cisco unified_threat_defense < 17.3.4a Yes
Application cisco unified_threat_defense < 17.4.2 Yes
Application snort snort < 2.9.18 Yes
References