How severe is CVE-2018-10698?

CVE-2018-10698 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2018-10698 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-2018-10698?

CVE-2018-10698 affects Moxa Awk-3121 Firmware. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2018-10698?

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

When was CVE-2018-10698 published?

CVE-2018-10698 was published on 2019-06-07 and last updated on 2026-06-17.

CVE-2018-10698

CVE-2018-10698 is a critical-severity vulnerability in Moxa Awk-3121 Firmware with a CVSS 3.x base score of 9.8. 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-311.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
CVSS v2: 10.0
EPSS exploit prediction: 2% (81st percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-311
Affected product: Moxa Awk-3121 Firmware
Published: 2019-06-07
Last modified: 2026-06-17

Description

An issue was discovered on Moxa AWK-3121 1.14 devices. The device enables an unencrypted TELNET service by default. This allows an attacker who has been able to gain an MITM position to easily sniff the traffic between the device and the user. Also an attacker can easily connect to the TELNET daemon using the default credentials if they have not been changed by the user.

Frequently asked questions

What is CVE-2018-10698?: An issue was discovered on Moxa AWK-3121 1.14 devices. The device enables an unencrypted TELNET service by default. This allows an attacker who has been able to gain an MITM position to easily sniff the traffic between the device and the user. Also an attacker can easily connect to the TELNET daemon using the default credentials if they have not been changed by the user.
How severe is CVE-2018-10698?: CVE-2018-10698 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2018-10698 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-2018-10698?: CVE-2018-10698 affects Moxa Awk-3121 Firmware. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2018-10698?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
When was CVE-2018-10698 published?: CVE-2018-10698 was published on 2019-06-07 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:o:moxa:awk-3121_firmware:1.14:*:*:*:*:*:*:*

More vulnerabilities in Moxa Awk-3121 Firmware

CVE-2018-10703 — High (CVSS 8.8): An issue was discovered on Moxa AWK-3121 1.14 devices. It provides functionality so that an administrator can run…
CVE-2018-10702 — High (CVSS 8.8): An issue was discovered on Moxa AWK-3121 1.14 devices. It provides functionality so that an administrator can run…
CVE-2018-10701 — High (CVSS 8.8): An issue was discovered on Moxa AWK-3121 1.14 devices. It provides functionality so that an administrator can run…
CVE-2018-10699 — High (CVSS 8.8): An issue was discovered on Moxa AWK-3121 1.14 devices. The Moxa AWK 3121 provides certfile upload functionality so that…
CVE-2018-10697 — High (CVSS 8.8): An issue was discovered on Moxa AWK-3121 1.14 devices. The Moxa AWK 3121 provides ping functionality so that an…
CVE-2018-10696 — High (CVSS 8.8): An issue was discovered on Moxa AWK-3121 1.14 devices. The device provides a web interface to allow an administrator to…

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