CiscoCVELIST:CVE-2023-20233CVE-2023-20233
4.3 Medium
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
LOW
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L
0.001 Low
EPSS
Percentile
25.8%
A vulnerability in the Connectivity Fault Management (CFM) feature of Cisco IOS XR Software could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device.
This vulnerability is due to incorrect processing of invalid continuity check messages (CCMs). An attacker could exploit this vulnerability by sending crafted CCMs to an affected device. A successful exploit could allow the attacker to cause the CFM service to crash when a user displays information about maintenance end points (MEPs) for peer MEPs on an affected device.
CNA Affected
[
{
"vendor": "Cisco",
"product": "Cisco IOS XR Software",
"versions": [
{
"version": "5.2.0",
"status": "affected"
},
{
"version": "5.2.1",
"status": "affected"
},
{
"version": "5.2.2",
"status": "affected"
},
{
"version": "5.2.4",
"status": "affected"
},
{
"version": "5.2.3",
"status": "affected"
},
{
"version": "5.2.5",
"status": "affected"
},
{
"version": "5.3.0",
"status": "affected"
},
{
"version": "5.3.1",
"status": "affected"
},
{
"version": "5.3.2",
"status": "affected"
},
{
"version": "5.3.3",
"status": "affected"
},
{
"version": "5.3.4",
"status": "affected"
},
{
"version": "6.1.1",
"status": "affected"
},
{
"version": "6.1.2",
"status": "affected"
},
{
"version": "6.1.3",
"status": "affected"
},
{
"version": "6.1.4",
"status": "affected"
},
{
"version": "6.2.1",
"status": "affected"
},
{
"version": "6.2.2",
"status": "affected"
},
{
"version": "6.2.3",
"status": "affected"
},
{
"version": "6.2.25",
"status": "affected"
},
{
"version": "6.3.2",
"status": "affected"
},
{
"version": "6.3.3",
"status": "affected"
},
{
"version": "6.3.15",
"status": "affected"
},
{
"version": "6.4.1",
"status": "affected"
},
{
"version": "6.4.2",
"status": "affected"
},
{
"version": "6.4.3",
"status": "affected"
},
{
"version": "6.5.1",
"status": "affected"
},
{
"version": "6.5.2",
"status": "affected"
},
{
"version": "6.6.2",
"status": "affected"
},
{
"version": "6.6.3",
"status": "affected"
},
{
"version": "6.6.25",
"status": "affected"
},
{
"version": "6.6.4",
"status": "affected"
},
{
"version": "7.0.1",
"status": "affected"
},
{
"version": "7.0.2",
"status": "affected"
},
{
"version": "7.1.1",
"status": "affected"
},
{
"version": "7.1.15",
"status": "affected"
},
{
"version": "7.1.2",
"status": "affected"
},
{
"version": "7.1.3",
"status": "affected"
},
{
"version": "6.7.1",
"status": "affected"
},
{
"version": "6.7.2",
"status": "affected"
},
{
"version": "6.7.3",
"status": "affected"
},
{
"version": "6.7.4",
"status": "affected"
},
{
"version": "7.2.1",
"status": "affected"
},
{
"version": "7.2.2",
"status": "affected"
},
{
"version": "7.3.1",
"status": "affected"
},
{
"version": "7.3.2",
"status": "affected"
},
{
"version": "7.3.3",
"status": "affected"
},
{
"version": "7.4.1",
"status": "affected"
},
{
"version": "7.4.2",
"status": "affected"
},
{
"version": "6.8.1",
"status": "affected"
},
{
"version": "6.8.2",
"status": "affected"
},
{
"version": "7.5.1",
"status": "affected"
},
{
"version": "7.5.3",
"status": "affected"
},
{
"version": "7.5.2",
"status": "affected"
},
{
"version": "7.6.1",
"status": "affected"
},
{
"version": "7.6.2",
"status": "affected"
},
{
"version": "7.7.1",
"status": "affected"
},
{
"version": "7.7.2",
"status": "affected"
},
{
"version": "6.9.1",
"status": "affected"
},
{
"version": "6.9.2",
"status": "affected"
}
]
}
]Related
4.3 Medium
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
LOW
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L
0.001 Low
EPSS
Percentile
25.8%