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01 Record

CVE-2020-3924

TONNET DVR – Firmware Injection

MediumPUBLISHEDCNA: twcert
CNA base score6.4 CVSS v3.xCVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:U/C:H/I:H/A:H

02 Description

TONNET DVR – Firmware Injection

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
1.25% probability of exploitation activity in the next 30 days.
EPSS percentile
Equal to or higher than the score of 69.1% 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
2020-02-27 04:00Z6 YR AGO
Last updated
2024-09-16 17:14Z2 YR AGO
Reserved
2019-12-20
Assigning CNA
twcert
Record state
PUBLISHED
Severity
Medium (CVSS 6.4)
CNA CVSS vector
CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:U/C:H/I:H/A:H
Weaknesses
  • CWE-77Improper Neutralization of Special Elements used in a Command ('Command Injection')Class
Data version
5.1
Document digest
defcd7b7b35017327721ec8a2cada8ec542fff475e1a018ce62fbcd2939cee82

05 Affected products

VendorProductVersionsPlatforms
TONNETDVR0 to 20191216, 0 to 20200213TAT-76 series, TAT-77 series

06 References

07 Remediation

Update to ver. 20191216 in TAT-76 series Update to ver. 20200213 in TAT-77 series