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Vulnerability record · CVE-2019-5148 · published 25 February 2020

CVE-2019-5148: Moxa awk-3131a firmware out-of-bounds read vulnerability

Moxa · Awk 3131a Firmware

An exploitable denial-of-service vulnerability exists in ServiceAgent functionality of the Moxa AWK-3131A, firmware version 1.13. A specially crafted packet can cause an integer underflow, triggering a large memcpy that will access unmapped or out-of-bounds memory. An attacker can send this packet while unauthenticated to trigger this vulnerability.

7.5 CVSS 3.1 High EPSS 2.5% · top 16.0% CWE-125 · Out-of-bounds readCWE-191 · CWE-191
7.5CVSS 3.1 base score, v2 5.0
2.5%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
2References, 2 tagged exploit
17 Jun 2026Last modified by NVD

Description

An exploitable denial-of-service vulnerability exists in ServiceAgent functionality of the Moxa AWK-3131A, firmware version 1.13. A specially crafted packet can cause an integer underflow, triggering a large memcpy that will access unmapped or out-of-bounds memory. An attacker can send this packet while unauthenticated to trigger this vulnerability.

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://talosintelligence.com/vulnerability_reports/TALOS-2019-0938 ExploitTechnical DescriptionThird Party Advisory
https://talosintelligence.com/vulnerability_reports/TALOS-2019-0938 ExploitTechnical DescriptionThird Party Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

10.0CVE-2016-8363Moxa oncellg3470a-lte firmware permissions and access controls vulnerabilityAn issue was discovered in Moxa OnCell OnCellG3470A-LTE, AWK-1131A/3131A/4131A Series, AWK-3191 Series, AWK-5232/6232 Series, AWK-1121/1127 Series, W…EPSS 2.4%9.9CVE-2019-5138Moxa awk-3131a firmware os command injection vulnerabilityAn exploitable command injection vulnerability exists in encrypted diagnostic script functionality of the Moxa AWK-3131A firmware version 1.13. A spe…EPSS 5.2%9.8CVE-2017-14459Moxa awk-3131a firmware os command injection vulnerabilityAn exploitable OS Command Injection vulnerability exists in the Telnet, SSH, and console login functionality of Moxa AWK-3131A Industrial IEEE 802.11…EPSS 13%9.8CVE-2016-8717Moxa awk-3131a firmware hard-coded credentials vulnerabilityAn exploitable Use of Hard-coded Credentials vulnerability exists in the Moxa AWK-3131A Wireless Access Point running firmware 1.1. The device operat…EPSS 2.1%9.1CVE-2016-8721Moxa awk-3131a firmware os command injection vulnerabilityAn exploitable OS Command Injection vulnerability exists in the web application 'ping' functionality of Moxa AWK-3131A Wireless Access Points running…EPSS 3.3%8.8CVE-2019-5162Moxa awk-3131a firmware improper access control vulnerabilityAn exploitable improper access control vulnerability exists in the iw_webs account settings functionality of the Moxa AWK-3131A firmware version 1.13…EPSS 2.6%8.8CVE-2019-5143Moxa awk-3131a firmware classic buffer overflow vulnerabilityAn exploitable format string vulnerability exists in the iw_console conio_writestr functionality of the Moxa AWK-3131A firmware version 1.13. A speci…EPSS 4.5%8.8CVE-2019-5136Moxa awk-3131a firmware improper access control vulnerabilityAn exploitable privilege escalation vulnerability exists in the iw_console functionality of the Moxa AWK-3131A firmware version 1.13. A specially cra…EPSS 2.4%

Source: NIST National Vulnerability Database (record CVE-2019-5148), CISA KEV, FIRST EPSS (scores of 2026-10-03). This page is refreshed as NVD updates the record.