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CVE-2023-20233

CVE.org · Published

Historical CVEsJSONAI instructions

Record status
Published
Identifier year (not publication year)
2023
Source publication
Source updated
Imported by cveboard
Source snapshot
cve_2026-10-24_midnight_baseline ·

Plain text

CNA source text (English)

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.

Scoped product and version facts

Fix information unknown; no fixed version is derived here. Missing information does not prove that no fix exists.

Exploitation unknown; this catalogue does not assess exploitation.

Cisco IOS XR Software

Vendor
Cisco
Product
Cisco IOS XR Software
Platforms
Unknown
Default status
Unknown
Cisco IOS XR Software · Scoped product and version facts
Version (version)Status (status)Version scheme (versionType)Exclusive end (lessThan)Inclusive end (lessThanOrEqual)Status changes (at → status)
5.2.0affectedUnavailableUnavailableUnavailableNone listed
5.2.1affectedUnavailableUnavailableUnavailableNone listed
5.2.2affectedUnavailableUnavailableUnavailableNone listed
5.2.4affectedUnavailableUnavailableUnavailableNone listed
5.2.3affectedUnavailableUnavailableUnavailableNone listed
5.2.5affectedUnavailableUnavailableUnavailableNone listed
5.3.0affectedUnavailableUnavailableUnavailableNone listed
5.3.1affectedUnavailableUnavailableUnavailableNone listed
5.3.2affectedUnavailableUnavailableUnavailableNone listed
5.3.3affectedUnavailableUnavailableUnavailableNone listed
5.3.4affectedUnavailableUnavailableUnavailableNone listed
6.1.1affectedUnavailableUnavailableUnavailableNone listed
6.1.2affectedUnavailableUnavailableUnavailableNone listed
6.1.3affectedUnavailableUnavailableUnavailableNone listed
6.1.4affectedUnavailableUnavailableUnavailableNone listed
6.2.1affectedUnavailableUnavailableUnavailableNone listed
6.2.2affectedUnavailableUnavailableUnavailableNone listed
6.2.3affectedUnavailableUnavailableUnavailableNone listed
6.2.25affectedUnavailableUnavailableUnavailableNone listed
6.3.2affectedUnavailableUnavailableUnavailableNone listed
6.3.3affectedUnavailableUnavailableUnavailableNone listed
6.3.15affectedUnavailableUnavailableUnavailableNone listed
6.4.1affectedUnavailableUnavailableUnavailableNone listed
6.4.2affectedUnavailableUnavailableUnavailableNone listed
6.4.3affectedUnavailableUnavailableUnavailableNone listed
6.5.1affectedUnavailableUnavailableUnavailableNone listed
6.5.2affectedUnavailableUnavailableUnavailableNone listed
6.6.2affectedUnavailableUnavailableUnavailableNone listed
6.6.3affectedUnavailableUnavailableUnavailableNone listed
6.6.25affectedUnavailableUnavailableUnavailableNone listed
6.6.4affectedUnavailableUnavailableUnavailableNone listed
7.0.1affectedUnavailableUnavailableUnavailableNone listed
7.0.2affectedUnavailableUnavailableUnavailableNone listed
7.1.1affectedUnavailableUnavailableUnavailableNone listed
7.1.15affectedUnavailableUnavailableUnavailableNone listed
7.1.2affectedUnavailableUnavailableUnavailableNone listed
7.1.3affectedUnavailableUnavailableUnavailableNone listed
6.7.1affectedUnavailableUnavailableUnavailableNone listed
6.7.2affectedUnavailableUnavailableUnavailableNone listed
6.7.3affectedUnavailableUnavailableUnavailableNone listed
6.7.4affectedUnavailableUnavailableUnavailableNone listed
7.2.1affectedUnavailableUnavailableUnavailableNone listed
7.2.2affectedUnavailableUnavailableUnavailableNone listed
7.3.1affectedUnavailableUnavailableUnavailableNone listed
7.3.2affectedUnavailableUnavailableUnavailableNone listed
7.3.3affectedUnavailableUnavailableUnavailableNone listed
7.4.1affectedUnavailableUnavailableUnavailableNone listed
7.4.2affectedUnavailableUnavailableUnavailableNone listed
6.8.1affectedUnavailableUnavailableUnavailableNone listed
6.8.2affectedUnavailableUnavailableUnavailableNone listed
7.5.1affectedUnavailableUnavailableUnavailableNone listed
7.5.3affectedUnavailableUnavailableUnavailableNone listed
7.5.2affectedUnavailableUnavailableUnavailableNone listed
7.6.1affectedUnavailableUnavailableUnavailableNone listed
7.6.2affectedUnavailableUnavailableUnavailableNone listed
7.7.1affectedUnavailableUnavailableUnavailableNone listed
7.7.2affectedUnavailableUnavailableUnavailableNone listed
6.9.1affectedUnavailableUnavailableUnavailableNone listed
6.9.2affectedUnavailableUnavailableUnavailableNone listed