7.5
HIGH
CVE-2021-46082
Moxa TN-5900, MGate 5109, MGate 5101-PBM-MN DoS Memory Leak Vulnerability
Description

Moxa TN-5900 v3.1 series routers, MGate 5109 v2.2 series protocol gateways, and MGate 5101-PBM-MN v2.1 series protocol gateways were discovered to contain a memory leak which allows attackers to cause a Denial of Service (DoS) via crafted packets.

INFO

Published Date :

Feb. 18, 2022, 8:15 p.m.

Last Modified :

Nov. 21, 2024, 6:33 a.m.

Remotely Exploitable :

Yes !

Impact Score :

3.6

Exploitability Score :

3.9
Affected Products

The following products are affected by CVE-2021-46082 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Moxa tn-5916-wv-t_firmware
2 Moxa tn-5916-wv-ct-t_firmware
3 Moxa mgate_5109_firmware
4 Moxa mgate_5109-t_firmware
5 Moxa mgate_5101-pbm-mn_firmware
6 Moxa mgate_5101-pbm-mn-t_firmware
7 Moxa tn-5916-wv-t
8 Moxa tn-5916-wv-ct-t
9 Moxa mgate_5109
10 Moxa mgate_5109-t
11 Moxa mgate_5101-pbm-mn
12 Moxa mgate_5101-pbm-mn-t

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2021-46082 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2021-46082 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • CVE Modified by af854a3a-2127-422b-91ae-364da2661108

    Nov. 21, 2024

    Action Type Old Value New Value
    Added Reference https://www.moxa.com/en/support/product-support/security-advisory/mgate-5109-5101-protocol-gateways-vulnerability
    Added Reference https://www.moxa.com/en/support/product-support/security-advisory/tn-5900-secure-routers-vulnerability
  • CVE Modified by [email protected]

    May. 14, 2024

    Action Type Old Value New Value
  • Initial Analysis by [email protected]

    Feb. 26, 2022

    Action Type Old Value New Value
    Added CVSS V2 NIST (AV:N/AC:L/Au:N/C:N/I:N/A:C)
    Added CVSS V3.1 NIST AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
    Changed Reference Type https://www.moxa.com/en/support/product-support/security-advisory/mgate-5109-5101-protocol-gateways-vulnerability No Types Assigned https://www.moxa.com/en/support/product-support/security-advisory/mgate-5109-5101-protocol-gateways-vulnerability Patch, Vendor Advisory
    Changed Reference Type https://www.moxa.com/en/support/product-support/security-advisory/tn-5900-secure-routers-vulnerability No Types Assigned https://www.moxa.com/en/support/product-support/security-advisory/tn-5900-secure-routers-vulnerability Vendor Advisory
    Added CWE NIST CWE-401
    Added CPE Configuration AND OR *cpe:2.3:o:moxa:tn-5916-wv-t_firmware:*:*:*:*:*:*:*:* versions up to (including) 3.1 OR cpe:2.3:h:moxa:tn-5916-wv-t:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:moxa:tn-5916-wv-ct-t_firmware:*:*:*:*:*:*:*:* versions up to (including) 3.1 OR cpe:2.3:h:moxa:tn-5916-wv-ct-t:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:moxa:mgate_5109_firmware:*:*:*:*:*:*:*:* versions up to (including) 2.2 OR cpe:2.3:h:moxa:mgate_5109:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:moxa:mgate_5109-t_firmware:*:*:*:*:*:*:*:* versions up to (including) 2.2 OR cpe:2.3:h:moxa:mgate_5109-t:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:moxa:mgate_5101-pbm-mn_firmware:*:*:*:*:*:*:*:* versions up to (including) 2.1 OR cpe:2.3:h:moxa:mgate_5101-pbm-mn:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:moxa:mgate_5101-pbm-mn-t_firmware:*:*:*:*:*:*:*:* versions up to (including) 2.1 OR cpe:2.3:h:moxa:mgate_5101-pbm-mn-t:-:*:*:*:*:*:*:*
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2021-46082 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2021-46082 weaknesses.

Exploit Prediction

EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.

0.12 }} 0.01%

score

0.46511

percentile

CVSS31 - Vulnerability Scoring System
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