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
8.3 High
AI Score
Confidence
High
0.001 Low
EPSS
Percentile
27.1%
A vulnerability in the AnyConnect SSL VPN feature 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 on an affected device. This vulnerability is due to an implementation error within the SSL/TLS session handling process that can prevent the release of a session handler under specific conditions. An attacker could exploit this vulnerability by sending crafted SSL/TLS traffic to an affected device, increasing the probability of session handler leaks. A successful exploit could allow the attacker to eventually deplete the available session handler pool, preventing new sessions from being established and causing a DoS condition.
[
{
"vendor": "Cisco",
"product": "Cisco Adaptive Security Appliance (ASA) Software",
"versions": [
{
"version": "9.16.1",
"status": "affected"
},
{
"version": "9.16.1.28",
"status": "affected"
},
{
"version": "9.16.2",
"status": "affected"
},
{
"version": "9.16.2.3",
"status": "affected"
},
{
"version": "9.16.2.7",
"status": "affected"
},
{
"version": "9.16.2.11",
"status": "affected"
},
{
"version": "9.16.2.13",
"status": "affected"
},
{
"version": "9.16.2.14",
"status": "affected"
},
{
"version": "9.16.3",
"status": "affected"
},
{
"version": "9.16.3.3",
"status": "affected"
},
{
"version": "9.16.3.14",
"status": "affected"
},
{
"version": "9.16.3.15",
"status": "affected"
},
{
"version": "9.16.3.19",
"status": "affected"
},
{
"version": "9.16.3.23",
"status": "affected"
},
{
"version": "9.16.4",
"status": "affected"
},
{
"version": "9.16.4.9",
"status": "affected"
},
{
"version": "9.17.1",
"status": "affected"
},
{
"version": "9.17.1.7",
"status": "affected"
},
{
"version": "9.17.1.9",
"status": "affected"
},
{
"version": "9.17.1.10",
"status": "affected"
},
{
"version": "9.17.1.11",
"status": "affected"
},
{
"version": "9.17.1.13",
"status": "affected"
},
{
"version": "9.17.1.15",
"status": "affected"
},
{
"version": "9.17.1.20",
"status": "affected"
},
{
"version": "9.18.1",
"status": "affected"
},
{
"version": "9.18.1.3",
"status": "affected"
},
{
"version": "9.18.2",
"status": "affected"
},
{
"version": "9.18.2.5",
"status": "affected"
},
{
"version": "9.18.2.7",
"status": "affected"
},
{
"version": "9.19.1",
"status": "affected"
}
]
},
{
"vendor": "Cisco",
"product": "Cisco Firepower Threat Defense Software",
"versions": [
{
"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"
}
]
}
]
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
8.3 High
AI Score
Confidence
High
0.001 Low
EPSS
Percentile
27.1%