7.4

CVE-2025-20340

Medienbericht
A vulnerability in the Address Resolution Protocol (ARP) implementation of Cisco IOS XR Software could allow an unauthenticated, adjacent attacker to trigger a broadcast storm, leading to a denial of service (DoS) condition on an affected device. 

This vulnerability is due to how Cisco IOS XR Software processes a high, sustained rate of ARP traffic hitting the management interface. Under certain conditions, an attacker could exploit this vulnerability by sending an excessive amount of traffic to the management interface of an affected device, overwhelming its ARP processing capabilities. A successful exploit could result in degraded device performance, loss of management connectivity, and complete unresponsiveness of the system, leading to a DoS condition.
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HerstellerCisco
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Produkt Cisco IOS XR Software
Default Statusunknown
Version 6.5.3
Status affected
Version 6.5.29
Status affected
Version 6.5.1
Status affected
Version 6.6.1
Status affected
Version 6.5.2
Status affected
Version 6.5.92
Status affected
Version 6.5.15
Status affected
Version 6.6.2
Status affected
Version 7.0.1
Status affected
Version 6.6.25
Status affected
Version 6.5.26
Status affected
Version 6.6.11
Status affected
Version 6.5.25
Status affected
Version 6.5.28
Status affected
Version 6.5.93
Status affected
Version 6.6.12
Status affected
Version 6.5.90
Status affected
Version 7.0.0
Status affected
Version 7.1.1
Status affected
Version 7.0.90
Status affected
Version 6.6.3
Status affected
Version 6.7.1
Status affected
Version 7.0.2
Status affected
Version 7.1.15
Status affected
Version 7.2.0
Status affected
Version 7.2.1
Status affected
Version 7.1.2
Status affected
Version 6.7.2
Status affected
Version 7.0.11
Status affected
Version 7.0.12
Status affected
Version 7.0.14
Status affected
Version 7.1.25
Status affected
Version 6.6.4
Status affected
Version 7.2.12
Status affected
Version 7.3.1
Status affected
Version 7.1.3
Status affected
Version 6.7.3
Status affected
Version 7.4.1
Status affected
Version 7.2.2
Status affected
Version 6.7.4
Status affected
Version 6.5.31
Status affected
Version 7.3.15
Status affected
Version 7.3.16
Status affected
Version 6.8.1
Status affected
Version 7.4.15
Status affected
Version 6.5.32
Status affected
Version 7.3.2
Status affected
Version 7.5.1
Status affected
Version 7.4.16
Status affected
Version 7.3.27
Status affected
Version 7.6.1
Status affected
Version 7.5.2
Status affected
Version 7.8.1
Status affected
Version 7.6.15
Status affected
Version 7.5.12
Status affected
Version 7.8.12
Status affected
Version 7.3.3
Status affected
Version 7.7.1
Status affected
Version 6.8.2
Status affected
Version 7.3.4
Status affected
Version 7.4.2
Status affected
Version 6.7.35
Status affected
Version 6.9.1
Status affected
Version 7.6.2
Status affected
Version 7.5.3
Status affected
Version 7.7.2
Status affected
Version 6.9.2
Status affected
Version 7.9.1
Status affected
Version 7.10.1
Status affected
Version 7.8.2
Status affected
Version 7.5.4
Status affected
Version 6.5.33
Status affected
Version 7.8.22
Status affected
Version 7.7.21
Status affected
Version 7.9.2
Status affected
Version 7.3.5
Status affected
Version 7.5.5
Status affected
Version 7.11.1
Status affected
Version 7.9.21
Status affected
Version 7.10.2
Status affected
Version 24.1.1
Status affected
Version 7.6.3
Status affected
Version 7.3.6
Status affected
Version 7.5.52
Status affected
Version 7.11.2
Status affected
Version 24.2.1
Status affected
Version 24.1.2
Status affected
Version 24.2.11
Status affected
Version 24.3.1
Status affected
Version 24.4.1
Status affected
Version 24.2.2
Status affected
Version 7.8.23
Status affected
Version 7.11.21
Status affected
Version 24.2.20
Status affected
Version 24.3.2
Status affected
Version 24.4.10
Status affected
Version 6.5.35
Status affected
Version 25.1.1
Status affected
Version 24.4.2
Status affected
Version 24.3.20
Status affected
Version 24.4.15
Status affected
Version 6.5.351
Status affected
Version 24.3.30
Status affected
Version 6.5.352
Status affected
Version 24.4.30
Status affected
Zu dieser CVE wurde keine CISA KEV oder CERT.AT-Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.05% 0.149
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
psirt@cisco.com 7.4 2.8 4
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H
CWE-400 Uncontrolled Resource Consumption

The product does not properly control the allocation and maintenance of a limited resource, thereby enabling an actor to influence the amount of resources consumed, eventually leading to the exhaustion of available resources.