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
AI Score
Confidence
High
EPSS
Percentile
32.9%
A vulnerability in the Multicast Leaf Recycle Elimination (mLRE) feature of Cisco IOS XE Software for Cisco ASR 1000 Series Aggregation Services Routers could allow an unauthenticated, remote attacker to cause the affected device to reload, resulting in a denial of service (DoS) condition.
This vulnerability is due to incorrect handling of certain IPv6 multicast packets when they are fanned out more than seven times on an affected device. An attacker could exploit this vulnerability by sending a specific IPv6 multicast or IPv6 multicast VPN (MVPNv6) packet through the affected device. A successful exploit could allow the attacker to cause a reload of the affected device, resulting in a DoS condition.
Vendor | Product | Version | CPE |
---|---|---|---|
cisco | ios_xe | 3.7.1s | cpe:2.3:o:cisco:ios_xe:3.7.1s:*:*:*:*:*:*:* |
cisco | ios_xe | 3.7.2s | cpe:2.3:o:cisco:ios_xe:3.7.2s:*:*:*:*:*:*:* |
cisco | ios_xe | 3.7.2ts | cpe:2.3:o:cisco:ios_xe:3.7.2ts:*:*:*:*:*:*:* |
cisco | ios_xe | 3.7.3s | cpe:2.3:o:cisco:ios_xe:3.7.3s:*:*:*:*:*:*:* |
cisco | ios_xe | 3.7.4s | cpe:2.3:o:cisco:ios_xe:3.7.4s:*:*:*:*:*:*:* |
cisco | ios_xe | 3.7.5s | cpe:2.3:o:cisco:ios_xe:3.7.5s:*:*:*:*:*:*:* |
cisco | ios_xe | 3.7.6s | cpe:2.3:o:cisco:ios_xe:3.7.6s:*:*:*:*:*:*:* |
cisco | ios_xe | 3.7.7s | cpe:2.3:o:cisco:ios_xe:3.7.7s:*:*:*:*:*:*:* |
cisco | ios_xe | 3.8.0s | cpe:2.3:o:cisco:ios_xe:3.8.0s:*:*:*:*:*:*:* |
cisco | ios_xe | 3.8.1s | cpe:2.3:o:cisco:ios_xe:3.8.1s:*:*:*:*:*:*:* |
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
AI Score
Confidence
High
EPSS
Percentile
32.9%