High severity · published Jan 26, 2022
CVE-2021-46559
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
7.5
CVSS
0.4%
EPSS
No
On KEV
Description
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
None
Integrity
High
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.4% · higher than 38% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
TF
Tn-5900 Firmware · Moxa
through 3.1 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2021-46559
CVE.org
https://www.cve.org/CVERecord?id=CVE-2021-46559
Vendor Advisory
https://www.moxa.com/en/support/product-support/security-advisory/tn-5900-secure-routers-vulnerabilities
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