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01 Record

CVE-2021-31349

Session Smart Router: Authentication Bypass Vulnerability

CriticalPUBLISHEDCNA: juniper
CNA base score9.8 CVSS v3.xCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

02 Description

Session Smart Router: Authentication Bypass Vulnerability

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
1.72% probability of exploitation activity in the next 30 days.
EPSS percentile
Equal to or higher than the score of 77.0% of scored records. A rank, not a probability.
NVD base score
9.8 (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:H/I:H/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
2021-10-19 18:16Z5 YR AGO
Last updated
2024-09-16 23:10Z2 YR AGO
Reserved
2021-04-15
Assigning CNA
juniper
Record state
PUBLISHED
Severity
Critical (CVSS 9.8)
CNA CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weaknesses
  • CWE-287Improper AuthenticationClass
Data version
5.1
Document digest
ce716dc5bae44be2d7733f480f43a914ab470f9b9b219d116441212f2c6d0d1b

05 Affected products

VendorProductVersionsPlatforms
Juniper Networks128 Technology Session Smart Router< 4.5.11, 5.0 to 5.0.1—

06 References

07 Remediation

128 Technology has released software updates that address the vulnerability described in this advisory. Fixed Releases: The following 128T software patches have been released to resolve this specific issue: 4.5.11, 5.1.0, and all subsequent releases. Customers who are running 5.0.0 or 5.0.1 should upgrade to 5.1.6 or later. Instructions for upgrading the 128T Networking Platform can be found at https://docs.128technology.com/docs/intro_upgrading .