CVE-2020-3924
TONNET DVR – Firmware Injection
CRITICAL
9.8
CVSS Score
Published: February 27, 2020 at 04:00 AM UTC
Updated: June 17, 2026 at 03:19 AM UTC
17 products affected across 1 vendorTat 76132G3 FirmwareTat 70432N FirmwareTat 77104G1 Firmware
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Severity
CRITICAL9.8
Exploit prediction
EPSS 1%
Description
DVR firmware in TAT-76 and TAT-77 series of products, provided by TONNET do not properly verify patch files. Attackers can inject a specific command into a patch file and gain access to the system.
Affected
Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.
Tat-70432N· Tonnetdevice
80%All versions
Remediation
No guide yetNo remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.
References (2)
x_refsource_MISCThird Party Advisory
Source: [email protected]
https://tvn.twcert.org.tw/taiwanvn/TVN-201910004x_refsource_MISCThird Party Advisory
Source: [email protected]
https://www.chtsecurity.com/news/4ef5eb3a-fdc3-4d78-8dd7-ec7213e2bbcfCVSS
- Attack Vector
- NETWORK
- Complexity
- LOW
- Privileges
- NONE
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality
- HIGH
- Integrity
- HIGH
- Availability
- HIGH
Vector?
Quick Info
StatusMODIFIED
CWE
CWE-77
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