CVE-2019-5143

Name: CVE-2019-5143
Creator: NVD / NIST
Published: 2020-02-25T16:15:10.827+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 8.8/10EPSS 4.65%

Last modified Jun 17, 2026

CVE-2019-5143 is a high-severity vulnerability rated 8.8/10 on the CVSS scale. An exploitable format string vulnerability exists in the iw_console conio_writestr functionality of the Moxa AWK-3131A firmware version 1.13. A specially crafted time server entry can cause an overflow of the time server buffer, resulting in remote code execution. EPSS estimates a 4.65% chance of exploitation in the next 30 days.

Description

An exploitable format string vulnerability exists in the iw_console conio_writestr functionality of the Moxa AWK-3131A firmware version 1.13. A specially crafted time server entry can cause an overflow of the time server buffer, resulting in remote code execution. An attacker can send commands while authenticated as a low privilege user to trigger this vulnerability.

Metrics

CVSS 3.1

8.8/10

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

EPSS Probability

4.65%

90.6th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Moxa	Awk-3131a Firmware	1.13

References

https://talosintelligence.com/vulnerability_reports/TALOS-2019-0932Exploit, Technical Description, Third Party Advisory
https://talosintelligence.com/vulnerability_reports/TALOS-2019-0932Exploit, Technical Description, Third Party Advisory

Timeline

Published: Feb 25, 2020
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2019-5143?

How severe is CVE-2019-5143?

CVE-2019-5143 has a CVSS score of 8.8/10 (HIGH severity). The EPSS model estimates a 4.65% probability of exploitation in the next 30 days.

How do I fix CVE-2019-5143?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2019-5143?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST