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
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
43.9%
A vulnerability in the Network-Based Application Recognition (NBAR) feature of Cisco IOS Software and Cisco IOS XE Software could allow an unauthenticated, remote attacker to cause an affected device to reload. This vulnerability is due to a parsing issue on DNS packets. An attacker could exploit these vulnerabilities by sending crafted DNS packets through routers that are running an affected version and have NBAR enabled. A successful exploit could allow the attacker to cause the affected device to reload, resulting in a denial of service (DoS) condition.
Vendor | Product | Version | CPE |
---|---|---|---|
cisco | ios | 15.1(2)sg8a | cpe:2.3:o:cisco:ios:15.1\(2\)sg8a:*:*:*:*:*:*:* |
cisco | ios | 15.1(3)svg3d | cpe:2.3:o:cisco:ios:15.1\(3\)svg3d:*:*:*:*:*:*:* |
cisco | ios | 15.1(3)svi1b | cpe:2.3:o:cisco:ios:15.1\(3\)svi1b:*:*:*:*:*:*:* |
cisco | ios | 15.1(3)svk4b | cpe:2.3:o:cisco:ios:15.1\(3\)svk4b:*:*:*:*:*:*:* |
cisco | ios | 15.1(3)svk4c | cpe:2.3:o:cisco:ios:15.1\(3\)svk4c:*:*:*:*:*:*:* |
cisco | ios | 15.1(3)svm3 | cpe:2.3:o:cisco:ios:15.1\(3\)svm3:*:*:*:*:*:*:* |
cisco | ios | 15.1(3)svn2 | cpe:2.3:o:cisco:ios:15.1\(3\)svn2:*:*:*:*:*:*:* |
cisco | ios | 15.1(3)svo1 | cpe:2.3:o:cisco:ios:15.1\(3\)svo1:*:*:*:*:*:*:* |
cisco | ios | 15.1(3)svo2 | cpe:2.3:o:cisco:ios:15.1\(3\)svo2:*:*:*:*:*:*:* |
cisco | ios | 15.1(3)svo3 | cpe:2.3:o:cisco:ios:15.1\(3\)svo3:*:*:*:*:*:*:* |
[
{
"product": "Cisco IOS and IOS-XE Software",
"vendor": "Cisco",
"versions": [
{
"status": "affected",
"version": "3.16.0S"
},
{
"status": "affected",
"version": "3.16.1S"
},
{
"status": "affected",
"version": "3.16.0aS"
},
{
"status": "affected",
"version": "3.16.1aS"
},
{
"status": "affected",
"version": "3.16.2S"
},
{
"status": "affected",
"version": "3.16.2aS"
},
{
"status": "affected",
"version": "3.16.0bS"
},
{
"status": "affected",
"version": "3.16.0cS"
},
{
"status": "affected",
"version": "3.16.3S"
},
{
"status": "affected",
"version": "3.16.2bS"
},
{
"status": "affected",
"version": "3.16.3aS"
},
{
"status": "affected",
"version": "3.16.4S"
},
{
"status": "affected",
"version": "3.16.4aS"
},
{
"status": "affected",
"version": "3.16.4bS"
},
{
"status": "affected",
"version": "3.16.4gS"
},
{
"status": "affected",
"version": "3.16.5S"
},
{
"status": "affected",
"version": "3.16.4cS"
},
{
"status": "affected",
"version": "3.16.4dS"
},
{
"status": "affected",
"version": "3.16.4eS"
},
{
"status": "affected",
"version": "3.16.5aS"
},
{
"status": "affected",
"version": "3.17.0S"
},
{
"status": "affected",
"version": "3.17.1S"
},
{
"status": "affected",
"version": "3.17.2S"
},
{
"status": "affected",
"version": "3.17.1aS"
},
{
"status": "affected",
"version": "3.17.3S"
},
{
"status": "affected",
"version": "3.17.4S"
},
{
"status": "affected",
"version": "3.2.0JA"
},
{
"status": "affected",
"version": "16.2.1"
},
{
"status": "affected",
"version": "16.2.2"
},
{
"status": "affected",
"version": "16.3.1"
},
{
"status": "affected",
"version": "16.3.2"
},
{
"status": "affected",
"version": "16.3.3"
},
{
"status": "affected",
"version": "16.3.1a"
},
{
"status": "affected",
"version": "16.3.4"
},
{
"status": "affected",
"version": "16.4.1"
},
{
"status": "affected",
"version": "16.4.2"
},
{
"status": "affected",
"version": "16.4.3"
},
{
"status": "affected",
"version": "16.5.1"
},
{
"status": "affected",
"version": "16.5.1a"
},
{
"status": "affected",
"version": "16.5.1b"
},
{
"status": "affected",
"version": "3.18.0aS"
},
{
"status": "affected",
"version": "3.18.0S"
},
{
"status": "affected",
"version": "3.18.1S"
},
{
"status": "affected",
"version": "3.18.2S"
},
{
"status": "affected",
"version": "3.18.3S"
},
{
"status": "affected",
"version": "3.18.4S"
},
{
"status": "affected",
"version": "3.18.0SP"
},
{
"status": "affected",
"version": "3.18.1SP"
},
{
"status": "affected",
"version": "3.18.1aSP"
},
{
"status": "affected",
"version": "3.18.1gSP"
},
{
"status": "affected",
"version": "3.18.1bSP"
},
{
"status": "affected",
"version": "3.18.1cSP"
},
{
"status": "affected",
"version": "3.18.2SP"
},
{
"status": "affected",
"version": "3.18.1hSP"
},
{
"status": "affected",
"version": "3.18.2aSP"
},
{
"status": "affected",
"version": "3.18.1iSP"
}
]
}
]
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
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
43.9%