Vulnerability Details : CVE-2022-20746

A vulnerability in the TCP proxy functionality of Cisco Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to trigger a denial of service (DoS) condition. This vulnerability is due to improper handling of TCP flows. An attacker could exploit this vulnerability by sending a crafted stream of TCP traffic through an affected device. A successful exploit could allow the attacker to cause the device to reload, resulting in a DoS condition.
Published 2022-05-03 04:15:10
Updated 2022-05-13 02:00:57
Source Cisco Systems, Inc.
View at NVD,   CVE.org
Vulnerability category: Denial of service

Products affected by CVE-2022-20746

Exploit prediction scoring system (EPSS) score for CVE-2022-20746

EPSS FAQ
0.16%
Probability of exploitation activity in the next 30 days EPSS Score History
~ 53 %
Percentile, the proportion of vulnerabilities that are scored at or less

CVSS scores for CVE-2022-20746

Base Score Base Severity CVSS Vector Exploitability Score Impact Score Score Source First Seen
7.1
 HIGH AV:N/AC:M/Au:N/C:N/I:N/A:C
8.6
6.9
 NIST
8.6
 HIGH CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H
3.9
4.0
 Cisco Systems, Inc.
7.5
 HIGH CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
3.9
3.6
 NIST

CWE ids for CVE-2022-20746

  • The product dereferences a pointer that it expects to be valid but is NULL.
    Assigned by:
    • nvd@nist.gov (Primary)
    • ykramarz@cisco.com (Secondary)

References for CVE-2022-20746

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