// For flags

CVE-2021-46559

Moxa TN-5900 Firmware Upgrade Checksum Validation

Severity Score

7.5
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

The firmware on Moxa TN-5900 devices through 3.1 has a weak algorithm that allows an attacker to defeat an inspection mechanism for integrity protection.

El firmware de los dispositivos Moxa TN-5900 versiones hasta 3.1, presenta un algoritmo débil que permite a un atacante vencer un mecanismo de inspección para la protección de la integridad

Moxa TN-5900 versions 3.1.0 and below use an insecure method to validate firmware updates. A malicious user with access to the management interface can upload arbitrary code in a crafted

*Credits: N/A
CVSS Scores
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
High
Availability
None
Attack Vector
Network
Attack Complexity
Low
Authentication
None
Confidentiality
None
Integrity
Partial
Availability
None
* Common Vulnerability Scoring System
SSVC
  • Decision:-
Exploitation
-
Automatable
-
Tech. Impact
-
* Organization's Worst-case Scenario
Timeline
  • 2022-01-26 CVE Reserved
  • 2022-01-26 CVE Published
  • 2024-08-04 CVE Updated
  • 2024-10-11 EPSS Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
  • CWE-345: Insufficient Verification of Data Authenticity
CAPEC
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Moxa
Search vendor "Moxa"
Tn-5900 Firmware
Search vendor "Moxa" for product "Tn-5900 Firmware"
<= 3.1
Search vendor "Moxa" for product "Tn-5900 Firmware" and version " <= 3.1"
-
Affected
in Moxa
Search vendor "Moxa"
Tn-5900
Search vendor "Moxa" for product "Tn-5900"
--
Safe