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01 Record

CVE-2022-22226

Junos OS: EX4300-MP, EX4600, QFX5000 Series: In VxLAN scenarios specific packets processed cause a memory leak leading to a PFE crash

MediumPUBLISHEDCNA: juniper
CNA base score6.5 CVSS v3.xCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

02 Description

Junos OS: EX4300-MP, EX4600, QFX5000 Series: In VxLAN scenarios specific packets processed cause a memory leak leading to a PFE crash

03 Exploitation and scoring

Exploitation
Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.
SSVC decision
  • ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
  • AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
  • Technical ImpactpartialSuccessful exploitation gives limited control of the vulnerable component.
CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.
EPSS probability
0.33% probability of exploitation activity in the next 30 days.
EPSS percentile
Equal to or higher than the score of 26.0% of scored records. A rank, not a probability.
NVD base score
6.5 (CVSS v3.x), scored by the NVD independently of the CNA.
NVD CVSS vector
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
NVD analysis status
Modified. NVD last modified this record on 2026-06-17.
Red Hat severity
No Red Hat rating. Red Hat rates the CVEs that affect its products.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

04 Metadata

Published
2022-10-18 02:46Z4 YR AGO
Last updated
2025-05-12 14:41Z1 YR AGO
Reserved
2021-12-21
Assigning CNA
juniper
Record state
PUBLISHED
Severity
Medium (CVSS 6.5)
CNA CVSS vector
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weaknesses
  • CWE-789Memory Allocation with Excessive Size ValueVariant
  • CWE-770Allocation of Resources Without Limits or ThrottlingBase
Data version
5.1
Document digest
1f13899539f4ca0eb4633a4a735da2a0f9353c3000b6f5e31a8dc639d7cc6bd3

05 Affected products

VendorProductVersionsPlatforms
Juniper NetworksJunos OS17.1R1 to < 17.1*, 17.2R1 to < 17.2*, 17.3 to < 17.3R3-S12, 17.4 to < 17.4R2-S13, 17.4R3-S5, 18.1 to < 18.1R3-S13, 18.2 to < 18.2R3-S8, 18.3 to < 18.3R3-S5, 18.4 to < 18.4R1-S8, 18.4R2-S6, 18.4R3-S6, 19.1 to < 19.1R3-S4, 19.2 to < 19.2R1-S7, 19.2R3-S1, 19.3 to < 19.3R2-S6, 19.3R3-S1, 19.4 to < 19.4R1-S4, 19.4R2-S4, 19.4R3-S1, 20.1 to < 20.1R2, 20.2 to < 20.2R2-S3, 20.2R3, 20.3 to < 20.3R2EX4300-MP, EX4600, QFX5000 Series

06 References

07 Remediation

The following software releases have been updated to resolve this specific issue: 17.3R3-S12, 17.4R2-S13, 17.4R3-S5, 18.1R3-S13, 18.2R3-S8, 18.3R3-S5, 18.4R1-S8, 18.4R2-S6, 18.4R3-S6, 19.1R3-S4, 19.2R1-S7, 19.2R3-S1, 19.3R2-S6, 19.3R3-S1, 19.4R1-S4, 19.4R2-S4, 19.4R3-S1, 20.1R2, 20.2R2-S3, 20.2R3, 20.3R2, 20.4R1, and all subsequent releases.