3.3 Low
CVSS2
Attack Vector
ADJACENT_NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
AV:A/AC:L/Au:N/C:N/I:N/A:P
6.5 Medium
CVSS3
Attack Vector
ADJACENT
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
0.001 Low
EPSS
Percentile
21.8%
An Improper Check for Unusual or Exceptional Conditions vulnerability in the Routing Protocol Daemon (rpd) of Juniper Networks Junos OS and Junos OS Evolved allows an adjacent, unauthenticated attacker with an established ISIS adjacency to cause a Denial of Service (DoS). The rpd CPU spikes to 100% after a malformed ISIS TLV has been received which will lead to processing issues of routing updates and in turn traffic impact. This issue affects: Juniper Networks Junos OS 19.3 versions prior to 19.3R3-S4; 19.4 versions prior to 19.4R2-S6, 19.4R3-S6; 20.1 versions prior to 20.1R3-S2; 20.2 versions prior to 20.2R3-S3; 20.3 versions prior to 20.3R3-S1; 20.4 versions prior to 20.4R3; 21.1 versions prior to 21.1R3; 21.2 versions prior to 21.2R2. Juniper Networks Junos OS Evolved All versions prior to 20.4R3-S3-EVO; 21.2 versions prior to 21.2R2-EVO. This issue does not affect Juniper Networks Junos OS versions prior to 19.3R1.
[
{
"product": "Junos OS",
"vendor": "Juniper Networks",
"versions": [
{
"lessThan": "19.3R1",
"status": "unaffected",
"version": "unspecified",
"versionType": "custom"
},
{
"lessThan": "19.3R3-S4",
"status": "affected",
"version": "19.3",
"versionType": "custom"
},
{
"lessThan": "19.4R2-S6, 19.4R3-S6",
"status": "affected",
"version": "19.4",
"versionType": "custom"
},
{
"lessThan": "20.1R3-S2",
"status": "affected",
"version": "20.1",
"versionType": "custom"
},
{
"lessThan": "20.2R3-S3",
"status": "affected",
"version": "20.2",
"versionType": "custom"
},
{
"lessThan": "20.3R3-S1",
"status": "affected",
"version": "20.3",
"versionType": "custom"
},
{
"lessThan": "20.4R3",
"status": "affected",
"version": "20.4",
"versionType": "custom"
},
{
"lessThan": "21.1R3",
"status": "affected",
"version": "21.1",
"versionType": "custom"
},
{
"lessThan": "21.2R2",
"status": "affected",
"version": "21.2",
"versionType": "custom"
}
]
},
{
"product": "Junos OS Evolved",
"vendor": "Juniper Networks",
"versions": [
{
"lessThan": "20.4R3-S3-EVO",
"status": "affected",
"version": "unspecified",
"versionType": "custom"
},
{
"lessThan": "21.2R2-EVO",
"status": "affected",
"version": "21.2",
"versionType": "custom"
}
]
}
]
3.3 Low
CVSS2
Attack Vector
ADJACENT_NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
AV:A/AC:L/Au:N/C:N/I:N/A:P
6.5 Medium
CVSS3
Attack Vector
ADJACENT
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
0.001 Low
EPSS
Percentile
21.8%