A vulnerability in ICMPv6 processing of Cisco Adaptive Security Appliance (ASA) Software and Cisco Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition. This vulnerability is due to improper processing of ICMPv6 messages. An attacker could exploit this vulnerability by sending crafted ICMPv6 messages to a targeted Cisco ASA or FTD system with IPv6 enabled. A successful exploit could allow the attacker to cause the device to reload, resulting in a DoS condition.
Published 2023-11-01 17:15:11
Updated 2024-01-25 17:15:29
View at NVD,   CVE.org
Vulnerability category: Denial of service

Products affected by CVE-2023-20086

Exploit prediction scoring system (EPSS) score for CVE-2023-20086

0.12%
Probability of exploitation activity in the next 30 days EPSS Score History
~ 47 %
Percentile, the proportion of vulnerabilities that are scored at or less

CVSS scores for CVE-2023-20086

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

CWE ids for CVE-2023-20086

  • An exception is thrown from a function, but it is not caught.
    Assigned by: ykramarz@cisco.com (Secondary)

References for CVE-2023-20086

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