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CVE Vulnerability Details :
CVE-2023-20233
PUBLISHED
More InfoOfficial Page
Assigner-cisco
Assigner Org ID-d1c1063e-7a18-46af-9102-31f8928bc633
View Known Exploited Vulnerability (KEV) details
Published At-13 Sep, 2023 | 16:40
Updated At-02 Aug, 2024 | 09:05
Rejected At-
▼CVE Numbering Authority (CNA)

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.

Affected Products
Vendor
Cisco Systems, Inc.Cisco
Product
Cisco IOS XR Software
Versions
Affected
  • 5.2.0
  • 5.2.1
  • 5.2.2
  • 5.2.4
  • 5.2.3
  • 5.2.5
  • 5.3.0
  • 5.3.1
  • 5.3.2
  • 5.3.3
  • 5.3.4
  • 6.1.1
  • 6.1.2
  • 6.1.3
  • 6.1.4
  • 6.2.1
  • 6.2.2
  • 6.2.3
  • 6.2.25
  • 6.3.2
  • 6.3.3
  • 6.3.15
  • 6.4.1
  • 6.4.2
  • 6.4.3
  • 6.5.1
  • 6.5.2
  • 6.6.2
  • 6.6.3
  • 6.6.25
  • 6.6.4
  • 7.0.1
  • 7.0.2
  • 7.1.1
  • 7.1.15
  • 7.1.2
  • 7.1.3
  • 6.7.1
  • 6.7.2
  • 6.7.3
  • 6.7.4
  • 7.2.1
  • 7.2.2
  • 7.3.1
  • 7.3.2
  • 7.3.3
  • 7.4.1
  • 7.4.2
  • 6.8.1
  • 6.8.2
  • 7.5.1
  • 7.5.3
  • 7.5.2
  • 7.6.1
  • 7.6.2
  • 7.7.1
  • 7.7.2
  • 6.9.1
  • 6.9.2
Problem Types
TypeCWE IDDescription
cweCWE-476NULL Pointer Dereference
Metrics
VersionBase scoreBase severityVector
3.14.3MEDIUM
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions
Configurations
Workarounds
Exploits

The Cisco PSIRT is not aware of any public announcements or malicious use of the vulnerability that is described in this advisory.

Credits
Timeline
EventDate
Replaced By
Rejected Reason
References
HyperlinkResource
https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ios-xr-cfm-3pWN8MKt
N/A
▼Authorized Data Publishers (ADP)
CVE Program Container
Affected Products
Metrics
VersionBase scoreBase severityVector
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions
Configurations
Workarounds
Exploits
Credits
Timeline
EventDate
Replaced By
Rejected Reason
References
HyperlinkResource
https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ios-xr-cfm-3pWN8MKt
x_transferred
Details not found