01 Record
CVE-2022-22172
Junos OS and Junos OS Evolved: An l2cpd memory leak can occur when specific LLDP packets are received leading to a DoS
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 and Junos OS Evolved: An l2cpd memory leak can occur when specific LLDP packets are received leading to a DoS
03 Exploitation and scoring
- Exploitation
- Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.
- SSVC decision
- Not assessed by CISA
- EPSS probability
- 0.36% probability of exploitation activity in the next 30 days.
- EPSS percentile
- Equal to or higher than the score of 30.4% 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
- 2022-01-19 00:21Z4 YR AGO
- Last updated
- 2024-09-16 20:36Z2 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-401Missing Release of Memory after Effective LifetimeVariant
- Data version
- 5.1
- Document digest
- 794a5fed7dec89371e7dcc1869424b93231b771a306798960774ff87dc3f38af
05 Affected products
VendorProductVersionsPlatforms
Juniper NetworksJunos OS18.4R2-S4 to < 18.4*, 19.2 to < 19.2R1-S8, 19.2R3-S4, 19.3 to < 19.3R3-S5, 19.4 to < 19.4R3-S7, 20.1 to < 20.1R3-S3, 20.2 to < 20.2R3-S2, 20.3 to < 20.3R3-S1, 20.4 to < 20.4R3, 21.1 to < 21.1R2-S2, 21.1R3, 21.2 to < 21.2R2—
06 References
- kb.juniper.nethttps://kb.juniper.net/JSA11278
07 Remediation
The following software releases have been updated to resolve this specific issue: for Junos OS: 19.2R1-S8, 19.2R3-S4, 19.3R3-S5, 19.4R3-S7, 20.1R3-S3, 20.2R3-S2, 20.3R3-S1, 20.4R3, 21.1R2-S2, 21.1R3, 21.2R2, 21.3R1, and all subsequent releases. for Junos OS Evolved: 20.4R3-S2-EVO, 21.2R2-EVO, 21.3R1-EVO, and all subsequent releases.