CVE-2022-22168

Junos OS: vMX and MX150: Specific packets might cause a memory leak and eventually an FPC reboot

MEDIUM

6.5

CVSS Score

Published: January 19, 2022 at 12:21 AM UTC

Updated: June 17, 2026 at 04:27 AM UTC

3 products affected across 2 vendorsJunosMx150Vmx

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Severity

MEDIUM6.5

Exploit prediction

EPSS 0.4%

Description

An Improper Validation of Specified Type of Input vulnerability in the kernel of Juniper Networks Junos OS allows an unauthenticated adjacent attacker to trigger a Missing Release of Memory after Effective Lifetime vulnerability. Continued exploitation of this vulnerability will eventually lead to an FPC reboot and thereby a Denial of Service (DoS). This issue affects: Juniper Networks Junos OS on vMX and MX150: All versions prior to 19.2R1-S8, 19.2R3-S4; 19.3 versions prior to 19.3R3-S5; 19.4 versions prior to 19.4R2-S5, 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 21.1R2-S1, 21.1R3; 21.2 versions prior to 21.2R1-S1, 21.2R2; 21.3 versions prior to 21.3R1-S1, 21.3R2.

Affected

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

Junos · Juniper Networks

95%

v ≤ 19.1v < 19.2R1-S8, 19.2R3-S419.3 ≤ v < 19.3R3-S519.4 ≤ v < 19.4R2-S5, 19.4R3-S620.1 ≤ v < 20.1R3-S220.2 ≤ v < 20.2R3-S320.3 ≤ v < 20.3R3-S120.4 ≤ v < 20.4R321.1 ≤ v < 21.1R2-S1, 21.1R321.2 ≤ v < 21.2R1-S1, 21.2R221.3 ≤ v < 21.3R1-S1, 21.3R219.2 19.2 r1 19.2 r1-s1 19.2 r1-s2 19.2 r1-s3 19.2 r1-s4 19.2 r1-s5 19.2 r1-s6 19.2 r1-s7 19.2 r2 19.2 r2-s1 19.2 r3 19.2 r3-s1 19.2 r3-s2 19.2 r3-s3 19.3 19.3 r1 19.3 r1-s1 19.3 r2 19.3 r2-s1 19.3 r2-s2 19.3 r2-s3 19.3 r2-s4 19.3 r2-s5 19.3 r2-s6 19.3 r3 19.3 r3-s1 19.3 r3-s2 19.3 r3-s3 19.3 r3-s4 19.4 19.4 r1 19.4 r1-s1 19.4 r1-s2 19.4 r1-s3 19.4 r1-s4 19.4 r2 19.4 r2-s1 19.4 r2-s2 19.4 r2-s3 19.4 r2-s4 19.4 r3 19.4 r3-s1 19.4 r3-s2 19.4 r3-s3 19.4 r3-s4 19.4 r3-s5 20.1 20.1 r1 20.1 r1-s1 20.1 r1-s2 20.1 r1-s3 20.1 r1-s4 20.1 r2 20.1 r2-s1 20.1 r2-s2 20.1 r3 20.1 r3-s1 20.2 20.2 r1 20.2 r1-s1 20.2 r1-s2 20.2 r1-s3 20.2 r2 20.2 r2-s1 20.2 r2-s2 20.2 r2-s3 20.2 r3 20.2 r3-s1 20.2 r3-s2 20.3 20.3 r1 20.3 r1-s1 20.3 r2 20.3 r2-s1 20.3 r3 20.4 20.4 r1 20.4 r1-s1 20.4 r2 20.4 r2-s1 21.1 21.1 r1 21.1 r1-s1 21.1 r2 21.2 21.2 r1 21.3 21.3 r1

Affected range stops below 19.2R1-S8, 19.2R3-S4, so it looks safe — our inference, not a vendor statement

Affected range stops below 19.3R3-S5, so it looks safe — our inference, not a vendor statement

Affected range stops below 19.4R2-S5, 19.4R3-S6, so it looks safe — our inference, not a vendor statement

Affected range stops below 20.1R3-S2, so it looks safe — our inference, not a vendor statement

Affected range stops below 20.2R3-S3, so it looks safe — our inference, not a vendor statement

Affected range stops below 20.3R3-S1, so it looks safe — our inference, not a vendor statement

Affected range stops below 20.4R3, so it looks safe — our inference, not a vendor statement

Affected range stops below 21.1R2-S1, 21.1R3, so it looks safe — our inference, not a vendor statement

Affected range stops below 21.2R1-S1, 21.2R2, so it looks safe — our inference, not a vendor statement

Affected range stops below 21.3R1-S1, 21.3R2, so it looks safe — our inference, not a vendor statement

juniper-mx150 (environment) · juniper-vmx (environment)

Mx150 · Juniperdevice

80%

All versions

Vmx · 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

https://kb.juniper.net/JSA11275

References (1)

x_refsource_CONFIRMVendor Advisory

Source: [email protected]

https://kb.juniper.net/JSA11275

CVSS

6.5MEDIUMjuniper

Attack Vector: ADJACENT_NETWORK
Complexity: LOW
Privileges: NONE
User Interaction: NONE
Scope: UNCHANGED
Confidentiality: NONE
Integrity: NONE
Availability: HIGH

Vector?

Quick Info

StatusMODIFIED

CWE

CWE-401CWE-1287

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