CVE-2023-20083
8.6 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
CHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H
8.4 High
AI Score
Confidence
High
0.001 Low
EPSS
Percentile
25.8%
A vulnerability in ICMPv6 inspection when configured with the Snort 2 detection engine for Cisco Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to cause the CPU of an affected device to spike to 100 percent, which could stop all traffic processing and result in a denial of service (DoS) condition. FTD management traffic is not affected by this vulnerability. This vulnerability is due to improper error checking when parsing fields within the ICMPv6 header. An attacker could exploit this vulnerability by sending a crafted ICMPv6 packet through an affected device. A successful exploit could allow the attacker to cause the device to exhaust CPU resources and stop processing traffic, resulting in a DoS condition. Note: To recover from the DoS condition, the Snort 2 Detection Engine or the Cisco FTD device may need to be restarted.
Affected configurations
CNA Affected
[
{
"vendor": "Cisco",
"product": "Cisco Firepower Threat Defense Software",
"versions": [
{
"version": "6.2.3",
"status": "affected"
},
{
"version": "6.2.3.1",
"status": "affected"
},
{
"version": "6.2.3.2",
"status": "affected"
},
{
"version": "6.2.3.3",
"status": "affected"
},
{
"version": "6.2.3.4",
"status": "affected"
},
{
"version": "6.2.3.5",
"status": "affected"
},
{
"version": "6.2.3.6",
"status": "affected"
},
{
"version": "6.2.3.7",
"status": "affected"
},
{
"version": "6.2.3.8",
"status": "affected"
},
{
"version": "6.2.3.10",
"status": "affected"
},
{
"version": "6.2.3.11",
"status": "affected"
},
{
"version": "6.2.3.9",
"status": "affected"
},
{
"version": "6.2.3.12",
"status": "affected"
},
{
"version": "6.2.3.13",
"status": "affected"
},
{
"version": "6.2.3.14",
"status": "affected"
},
{
"version": "6.2.3.15",
"status": "affected"
},
{
"version": "6.2.3.16",
"status": "affected"
},
{
"version": "6.2.3.17",
"status": "affected"
},
{
"version": "6.2.3.18",
"status": "affected"
},
{
"version": "6.6.0",
"status": "affected"
},
{
"version": "6.6.0.1",
"status": "affected"
},
{
"version": "6.6.1",
"status": "affected"
},
{
"version": "6.6.3",
"status": "affected"
},
{
"version": "6.6.4",
"status": "affected"
},
{
"version": "6.6.5",
"status": "affected"
},
{
"version": "6.6.5.1",
"status": "affected"
},
{
"version": "6.6.5.2",
"status": "affected"
},
{
"version": "6.6.7",
"status": "affected"
},
{
"version": "6.6.7.1",
"status": "affected"
},
{
"version": "6.4.0",
"status": "affected"
},
{
"version": "6.4.0.1",
"status": "affected"
},
{
"version": "6.4.0.3",
"status": "affected"
},
{
"version": "6.4.0.2",
"status": "affected"
},
{
"version": "6.4.0.4",
"status": "affected"
},
{
"version": "6.4.0.5",
"status": "affected"
},
{
"version": "6.4.0.6",
"status": "affected"
},
{
"version": "6.4.0.7",
"status": "affected"
},
{
"version": "6.4.0.8",
"status": "affected"
},
{
"version": "6.4.0.9",
"status": "affected"
},
{
"version": "6.4.0.10",
"status": "affected"
},
{
"version": "6.4.0.11",
"status": "affected"
},
{
"version": "6.4.0.12",
"status": "affected"
},
{
"version": "6.4.0.13",
"status": "affected"
},
{
"version": "6.4.0.14",
"status": "affected"
},
{
"version": "6.4.0.15",
"status": "affected"
},
{
"version": "6.4.0.16",
"status": "affected"
},
{
"version": "6.4.0.17",
"status": "affected"
},
{
"version": "6.7.0",
"status": "affected"
},
{
"version": "6.7.0.1",
"status": "affected"
},
{
"version": "6.7.0.2",
"status": "affected"
},
{
"version": "6.7.0.3",
"status": "affected"
},
{
"version": "7.0.0",
"status": "affected"
},
{
"version": "7.0.0.1",
"status": "affected"
},
{
"version": "7.0.1",
"status": "affected"
},
{
"version": "7.0.1.1",
"status": "affected"
},
{
"version": "7.0.2",
"status": "affected"
},
{
"version": "7.0.2.1",
"status": "affected"
},
{
"version": "7.0.3",
"status": "affected"
},
{
"version": "7.0.4",
"status": "affected"
},
{
"version": "7.0.5",
"status": "affected"
},
{
"version": "7.1.0",
"status": "affected"
},
{
"version": "7.1.0.1",
"status": "affected"
},
{
"version": "7.1.0.2",
"status": "affected"
},
{
"version": "7.1.0.3",
"status": "affected"
},
{
"version": "7.2.0",
"status": "affected"
},
{
"version": "7.2.0.1",
"status": "affected"
},
{
"version": "7.2.1",
"status": "affected"
},
{
"version": "7.2.2",
"status": "affected"
},
{
"version": "7.2.3",
"status": "affected"
},
{
"version": "7.3.0",
"status": "affected"
},
{
"version": "7.3.1",
"status": "affected"
},
{
"version": "7.3.1.1",
"status": "affected"
}
]
}
]Related
8.6 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
CHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H
8.4 High
AI Score
Confidence
High
0.001 Low
EPSS
Percentile
25.8%