CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
COMPLETE
AV:N/AC:L/Au:N/C:N/I:N/A:C
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
CHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H
AI Score
Confidence
High
EPSS
Percentile
62.0%
A vulnerability in the Zone-Based Firewall code of Cisco IOS XE Software could allow an unauthenticated, remote attacker to cause a device to reload. The vulnerability is due to the way fragmented packets are handled in the firewall code. An attacker could exploit this vulnerability by sending fragmented IP Version 4 or IP Version 6 packets through an affected device. An exploit could allow the attacker to cause the device to crash, resulting in a denial of service (DoS) condition. The following releases of Cisco IOS XE Software are vulnerable: Everest-16.4.1, Everest-16.4.2, Everest-16.5.1, Everest-16.5.1b, Everest-16.6.1, Everest-16.6.1a. Cisco Bug IDs: CSCvf60296.
Vendor | Product | Version | CPE |
---|---|---|---|
cisco | ios_xe | 16.4.1 | cpe:2.3:o:cisco:ios_xe:16.4.1:*:*:*:*:*:*:* |
cisco | ios_xe | 16.4.2 | cpe:2.3:o:cisco:ios_xe:16.4.2:*:*:*:*:*:*:* |
cisco | ios_xe | 16.5.1 | cpe:2.3:o:cisco:ios_xe:16.5.1:*:*:*:*:*:*:* |
cisco | ios_xe | 16.5.1b | cpe:2.3:o:cisco:ios_xe:16.5.1b:*:*:*:*:*:*:* |
cisco | ios_xe | 16.6.1 | cpe:2.3:o:cisco:ios_xe:16.6.1:*:*:*:*:*:*:* |
cisco | ios_xe | 16.6.1a | cpe:2.3:o:cisco:ios_xe:16.6.1a:*:*:*:*:*:*:* |
[
{
"product": "Cisco IOS XE",
"vendor": "n/a",
"versions": [
{
"status": "affected",
"version": "Cisco IOS XE"
}
]
}
]
CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
COMPLETE
AV:N/AC:L/Au:N/C:N/I:N/A:C
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
CHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H
AI Score
Confidence
High
EPSS
Percentile
62.0%