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CVE-2022-22192

Junos OS Evolved: PTX Series: An attacker can cause a kernel panic by sending a malformed TCP packet to the device

HIGH
7.5
CVSS Score
Published: October 18, 2022 at 02:46 AM UTC
Updated: June 17, 2026 at 04:27 AM UTC
5 products affected across 2 vendorsJunos OS EvolvedPtx10008Ptx10004

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Severity
HIGH7.5
Exploit prediction
EPSS 0.8%
SSVC
No known exploit

Description

An Improper Validation of Syntactic Correctness of Input vulnerability in the kernel of Juniper Networks Junos OS Evolved on PTX series allows a network-based, unauthenticated attacker to cause a Denial of Service (DoS). When an incoming TCP packet destined to the device is malformed there is a possibility of a kernel panic. Only TCP packets destined to the ports for BGP, LDP and MSDP can trigger this. This issue only affects PTX10004, PTX10008, PTX10016. No other PTX Series devices or other platforms are affected. This issue affects Juniper Networks Junos OS Evolved: 20.4-EVO versions prior to 20.4R3-S4-EVO; 21.3-EVO versions prior to 21.3R3-EVO; 21.4-EVO versions prior to 21.4R3-EVO; 22.1-EVO versions prior to 22.1R2-EVO. This issue does not affect Juniper Networks Junos OS Evolved versions prior to 20.4R1-EVO.

Affected

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

Junos OS Evolved· Juniper
95%
20.4 r120.4 r1-s120.4 r1-s220.4 r220.4 r2-s120.4 r2-s220.4 r2-s320.4 r320.4 r3-s120.4 r3-s220.4 r3-s321.3 r121.3 r1-s121.3 r221.3 r2-s121.3 r2-s221.421.4 r121.4 r1-s121.4 r221.4 r2-s121.4 r2-s222.1 r122.1 r1-s122.1 r1-s2
juniper-ptx10004 (environment) · juniper-ptx10008 (environment) · juniper-ptx10016 (environment)
Junos OS Evolved· Juniper Networks
60%
20.4-EVO ≤ v < 20.4R3-S4-EVO21.3-EVO ≤ v < 21.3R3-EVO21.4-EVO ≤ v < 21.4R3-EVO22.1-EVO ≤ v < 22.1R2-EVO20.4-EVO21.3-EVO21.4-EVO22.1-EVO
Vendor states this is fixed in 20.4R1-EVO (unaffected)
Affected range stops below 20.4R3-S4-EVO, so it looks safe — our inference, not a vendor statement
Affected range stops below 21.3R3-EVO, so it looks safe — our inference, not a vendor statement
Affected range stops below 21.4R3-EVO, so it looks safe — our inference, not a vendor statement
Affected range stops below 22.1R2-EVO, so it looks safe — our inference, not a vendor statement
Ptx10004· Juniperdevice
80%
All versions
Ptx10008· Juniperdevice
80%
All versions
Ptx10016· Juniperdevice
80%
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)

Vendor Advisory
Source: [email protected]
https://kb.juniper.net/JSA69915

SSVC — Action Prioritization

SSVCNo known exploitAutomatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

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-1286CWE-20

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