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01 Record

CVE-2020-1661

Junos OS: jdhcpd process crash when forwarding a malformed DHCP packet.

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: jdhcpd process crash when forwarding a malformed DHCP packet.

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
0.99% probability of exploitation activity in the next 30 days.
EPSS percentile
Equal to or higher than the score of 62.3% 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
2024-09-17 03:24Z2 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
No CWE assigned
Data version
5.1
Document digest
627085dd20bafa89353143656b866c3ef5575fe32509a92468ba268997fe41e5

05 Affected products

VendorProductVersionsPlatforms
Juniper NetworksJunos OS12.3 to < 12.3R12-S16, 15.1 to < 15.1R7-S7, 16.1 to < 16.1R7-S5, 12.3X48 to < 12.3X48-D105, 15.1X49 to < 15.1X49-D221, 15.1X49-D230, 14.1X53 to < 14.1X53-D60, 15.1X53 to < 15.1X53-D593SRX Series, EX and QFX Series, EX2300/EX3400

06 References

07 Remediation

The following software releases have been updated to resolve this specific issue: Junos OS 12.3R12-S16, 12.3X48-D105, 15.1R7-S7, 15.1X49-D221, 15.1X49-D230, 15.1X53-D593, 16.1R7-S5, 16.2R1 and all subsequent releases.