01 Record
CVE-2020-1665
Junos OS: MX series/EX9200 Series: IPv6 DDoS protection does not work as expected.
MediumPUBLISHEDCNA: juniper
CNA base score5.3 CVSS v3.xCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
02 Description
Junos OS: MX series/EX9200 Series: IPv6 DDoS protection does not work as expected.
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
- 1.27% probability of exploitation activity in the next 30 days.
- EPSS percentile
- Equal to or higher than the score of 69.5% of scored records. A rank, not a probability.
- NVD base score
- 5.3 (CVSS v3.x), scored by the NVD independently of the CNA.
- NVD CVSS vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
- 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
- 2020-10-16 20:31Z6 YR AGO
- Last updated
- 2024-09-16 18:29Z2 YR AGO
- Reserved
- 2019-11-04
- Assigning CNA
- juniper
- Record state
- PUBLISHED
- Severity
- Medium (CVSS 5.3)
- CNA CVSS vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
- Weaknesses
- CWE-794Incomplete Filtering of Multiple Instances of Special ElementsVariant
- Data version
- 5.1
- Document digest
- 6ffa06c925b18e6a4059a7fb0f27c9ecddbfc8b08b0bc82c46114fa67e8c4741
05 Affected products
VendorProductVersionsPlatforms
Juniper NetworksJunos OS17.2 to < 17.2R3-S4, 17.2X75 to < 17.2X75-D102, 17.2X75-D110, 17.3 to < 17.3R3-S8, 17.4 to < 17.4R2-S11, 17.4R3-S2, 18.2 to < 18.2R2-S7, 18.2R3, 18.2R3-S3, 18.2X75 to < 18.2X75-D30, 18.3 to < 18.3R2-S4, 18.3R3-S2MX series/EX9200 Series
06 References
- kb.juniper.nethttps://kb.juniper.net/JSA11062
- kb.juniper.nethttps://kb.juniper.net/KB25385
07 Remediation
The following software releases have been updated to resolve this specific issue: Junos OS 17.2R3-S4, 17.2X75-D102, 17.2X75-D110, 17.3R3-S8, 17.4R2-S11, 17.4R3-S2, 18.2R2-S7, 18.2R3, 18.2R3-S3, 18.2X75-D30, 18.3R2-S4, 18.3R3-S2, 18.4R1, and all subsequent releases.