CVE-2021-46559
The firmware on Moxa TN-5900 devices through 3.1 has a weak algorithm that allows an attacker to...
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.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- None
- Integrity
- High
- Availability
- None
Exploit likelihood
What each source reports
NVD Score used
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.
- Record
CVE-2021-46559- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N - CVSS 2.0
- 5.0 Medium
AV:N/AC:L/Au:N/C:N/I:P/A:N - Weakness
- CWE-345
- Updated
- 2026-11-02
CVE List No score
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.
- Record
CVE-2021-46559- Updated
- 2026-11-02
EUVDEUVD-2021-33235 No score
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.
- Record
EUVD-2021-33235- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-4vj4-c65w-6944
The firmware on Moxa TN-5900 devices through 3.1 has a weak algorithm that allows an attacker to...
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.
- Record
GHSA-4vj4-c65w-6944- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N - Weakness
- CWE-327
- Updated
- 2026-11-02
Affected products
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2021-46559 is a high vulnerability (CVSS 7.5) in Moxa Tn-5900 Firmware, published January 26, 2022. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.44%, the 38th percentile. No source names a fixed version.