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01 Record

CVE-2020-1657

Junos OS: SRX Series: An attacker sending spoofed packets to IPSec peers may cause a Denial of Service.

HighPUBLISHEDCNA: juniper
CNA base score7.5 CVSS v3.xCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

02 Description

Junos OS: SRX Series: An attacker sending spoofed packets to IPSec peers may cause a Denial of Service.

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
1.28% probability of exploitation activity in the next 30 days.
EPSS percentile
Equal to or higher than the score of 69.7% of scored records. A rank, not a probability.
NVD base score
7.5 (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: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
2020-10-16 20:31Z6 YR AGO
Last updated
2024-09-17 04:13Z2 YR AGO
Reserved
2019-11-04
Assigning CNA
juniper
Record state
PUBLISHED
Severity
High (CVSS 7.5)
CNA CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weaknesses
  • CWE-408Incorrect Behavior Order: Early AmplificationBase
Data version
5.1
Document digest
ed1f9cfa2c0b66786f398f345e50e3040436976ff33000d027cc0152bb069d94

05 Affected products

VendorProductVersionsPlatforms
Juniper NetworksJunos OS12.3X48 to < 12.3X48-D90, 15.1X49 to < 15.1X49-D190, 17.4 to < 17.4R2-S9, 17.4R3, 18.1 to < 18.1R3-S9, 18.2 to < 18.2R3, 18.3 to < 18.3R1-S7, 18.3R2-S3, 18.3R3, 18.4 to < 18.4R1-S6, 18.4R2-S3, 18.4R3, 19.1 to < 19.1R1-S4, 19.1R2SRX Series

06 References

07 Remediation

The following software releases have been updated to resolve this specific issue: 12.3X48-D90, 15.1X49-D190, 17.4R2-S9, 17.4R3, 18.1R3-S9, 18.2R3, 18.3R1-S7, 18.3R2-S3, 18.3R3, 18.4R1-S6, 18.4R2-S3, 18.4R3, 19.1R1-S4, 19.1R2, 19.2R1, and all subsequent releases.