CVE-2022-22194

Junos OS Evolved: PTX series: An attacker sending a crafted GRE packet will cause the PFE to restart

HIGH
7.5
CVSS Score
Published: April 14, 2022 at 03:50 PM UTC
Updated: June 17, 2026 at 04:27 AM UTC
5 products affected across 2 vendorsJunos OS EvolvedPtx10008Ptx10003

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Severity
HIGH7.5
Exploit prediction
EPSS 1%

Description

An Improper Check for Unusual or Exceptional Conditions vulnerability in the packetIO daemon of Juniper Networks Junos OS Evolved on PTX10003, PTX10004, and PTX10008 allows an unauthenticated, network-based attacker to cause a Denial of Service (DoS). Continued receipt of these crafted packets will cause a sustained Denial of Service condition. This issue affects Juniper Networks Junos OS Evolved all versions prior to 20.4R2-S3-EVO on PTX10003, PTX10004, and PTX10008. This issue does not affect: Juniper Networks Junos OS Evolved versions 21.1R1-EVO and above; Juniper Networks Junos OS.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Affected range stops below 20.4, so it looks safe — our inference, not a vendor statement
juniper-ptx10003 (environment) · juniper-ptx10004 (environment) · juniper-ptx10008 (environment)
v < 20.4R2-S3-EVO, 20.4R3-EVO
Affected range stops below 20.4R2-S3-EVO, 20.4R3-EVO, so it looks safe — our inference, not a vendor statement
Vendor states this is fixed in 21.1R1-EVO (unaffected)
All versions
All versions
All versions

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

References (1)

x_refsource_CONFIRMMitigationVendor Advisory
https://kb.juniper.net/JSA69505

CVSS

7.5HIGHjuniper
Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-754

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