CVE-2021-3053
7.1 High
CVSS2
Attack Vector
NETWORK
Attack Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
COMPLETE
AV:N/AC:M/Au:N/C:N/I:N/A:C
7.5 High
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
0.001 Low
EPSS
Percentile
42.6%
An improper handling of exceptional conditions vulnerability exists in the Palo Alto Networks PAN-OS dataplane that enables an unauthenticated network-based attacker to send specifically crafted traffic through the firewall that causes the service to crash. Repeated attempts to send this request result in denial of service to all PAN-OS services by restarting the device and putting it into maintenance mode. This issue impacts: PAN-OS 8.1 versions earlier than PAN-OS 8.1.20; PAN-OS 9.0 versions earlier than PAN-OS 9.0.14; PAN-OS 9.1 versions earlier than PAN-OS 9.1.9; PAN-OS 10.0 versions earlier than PAN-OS 10.0.5. This issue does not affect Prisma Access.
Affected configurations
CNA Affected
[
{
"product": "PAN-OS",
"vendor": "Palo Alto Networks",
"versions": [
{
"status": "unaffected",
"version": "10.1.*"
},
{
"changes": [
{
"at": "8.1.20",
"status": "unaffected"
}
],
"lessThan": "8.1.20",
"status": "affected",
"version": "8.1",
"versionType": "custom"
},
{
"changes": [
{
"at": "9.0.14",
"status": "unaffected"
}
],
"lessThan": "9.0.14",
"status": "affected",
"version": "9.0",
"versionType": "custom"
},
{
"changes": [
{
"at": "9.1.9",
"status": "unaffected"
}
],
"lessThan": "9.1.9",
"status": "affected",
"version": "9.1",
"versionType": "custom"
},
{
"changes": [
{
"at": "10.0.5",
"status": "unaffected"
}
],
"lessThan": "10.0.5",
"status": "affected",
"version": "10.0",
"versionType": "custom"
}
]
}
]Related
7.1 High
CVSS2
Attack Vector
NETWORK
Attack Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
COMPLETE
AV:N/AC:M/Au:N/C:N/I:N/A:C
7.5 High
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
0.001 Low
EPSS
Percentile
42.6%