How severe is CVE-2019-5137?

CVE-2019-5137 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.

Is CVE-2019-5137 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (81st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2019-5137?

CVE-2019-5137 affects Moxa Awk-3131a Firmware. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2019-5137?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2019-5137 published?

CVE-2019-5137 was published on 2020-02-25 and last updated on 2026-06-17.

CVE-2019-5137

CVE-2019-5137 is a high-severity vulnerability in Moxa Awk-3131a Firmware with a CVSS 3.x base score of 7.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-798.

Key facts

Severity: High (CVSS 3.x base score 7.5)
CVSS v2: 5.0
EPSS exploit prediction: 2% (81st percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-798
Affected product: Moxa Awk-3131a Firmware
Published: 2020-02-25
Last modified: 2026-06-17

Description

The usage of hard-coded cryptographic keys within the ServiceAgent binary allows for the decryption of captured traffic across the network from or to the Moxa AWK-3131A firmware version 1.13.

Frequently asked questions

What is CVE-2019-5137?: The usage of hard-coded cryptographic keys within the ServiceAgent binary allows for the decryption of captured traffic across the network from or to the Moxa AWK-3131A firmware version 1.13.
How severe is CVE-2019-5137?: CVE-2019-5137 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.
Is CVE-2019-5137 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (81st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2019-5137?: CVE-2019-5137 affects Moxa Awk-3131a Firmware. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2019-5137?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2019-5137 published?: CVE-2019-5137 was published on 2020-02-25 and last updated on 2026-06-17.

References

https://talosintelligence.com/vulnerability_reports/TALOS-2019-0926

Affected products (1)

cpe:2.3:o:moxa:awk-3131a_firmware:1.13:*:*:*:*:*:*:*

More vulnerabilities in Moxa Awk-3131a Firmware

CVE-2017-14459 — Critical (CVSS 10.0): An exploitable OS Command Injection vulnerability exists in the Telnet, SSH, and console login functionality of Moxa…
CVE-2016-8363 — Critical (CVSS 10.0): An issue was discovered in Moxa OnCell OnCellG3470A-LTE, AWK-1131A/3131A/4131A Series, AWK-3191 Series, AWK-5232/6232…
CVE-2019-5138 — Critical (CVSS 9.9): An exploitable command injection vulnerability exists in encrypted diagnostic script functionality of the Moxa…
CVE-2016-8717 — Critical (CVSS 9.8): An exploitable Use of Hard-coded Credentials vulnerability exists in the Moxa AWK-3131A Wireless Access Point running…
CVE-2016-8721 — Critical (CVSS 9.1): An exploitable OS Command Injection vulnerability exists in the web application 'ping' functionality of Moxa AWK-3131A…
CVE-2019-5162 — High (CVSS 8.8): An exploitable improper access control vulnerability exists in the iw_webs account settings functionality of the Moxa…

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