CiscoCVELIST:CVE-2022-20960CVE-2022-20960
7.5 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
0.001 Low
EPSS
Percentile
50.7%
A vulnerability in Cisco AsyncOS Software for Cisco Email Security Appliance (ESA) could allow an unauthenticated remote attacker to cause a denial of service (DoS) condition on an affected device.
This vulnerability is due to improper handling of certain TLS connections that are processed by an affected device. An attacker could exploit this vulnerability by establishing a large number of concurrent TLS connections to an affected device. A successful exploit could allow the attacker to cause the device to drop new TLS email messages that come from the associated email servers. Exploitation of this vulnerability does not cause the affected device to unexpectedly reload. The device will recover autonomously within a few hours of when the attack is halted or mitigated.
CNA Affected
[
{
"vendor": "Cisco",
"product": "Cisco Secure Email",
"versions": [
{
"version": "11.0.3-238",
"status": "affected"
},
{
"version": "11.1.0-069",
"status": "affected"
},
{
"version": "11.1.0-131",
"status": "affected"
},
{
"version": "11.1.0-128",
"status": "affected"
},
{
"version": "12.0.0-419",
"status": "affected"
},
{
"version": "12.1.0-071",
"status": "affected"
},
{
"version": "12.1.0-087",
"status": "affected"
},
{
"version": "12.1.0-089",
"status": "affected"
},
{
"version": "13.0.0-392",
"status": "affected"
},
{
"version": "13.5.1-277",
"status": "affected"
},
{
"version": "12.5.0-066",
"status": "affected"
},
{
"version": "14.0.0-698",
"status": "affected"
},
{
"version": "14.2.0-620",
"status": "affected"
}
]
}
]Related
7.5 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
0.001 Low
EPSS
Percentile
50.7%