How severe is CVE-2018-10703?

CVE-2018-10703 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2018-10703 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (83rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2018-10703?

CVE-2018-10703 affects Moxa Awk-3121 Firmware. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2018-10703?

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-2018-10703 published?

CVE-2018-10703 was published on 2019-06-07 and last updated on 2026-06-17.

CVE-2018-10703

CVE-2018-10703 is a high-severity vulnerability in Moxa Awk-3121 Firmware with a CVSS 3.x base score of 8.8. 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-119.

Key facts

Severity: High (CVSS 3.x base score 8.8)
CVSS v2: 6.8
EPSS exploit prediction: 3% (83rd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-119
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. It provides functionality so that an administrator can run scripts on the device to troubleshoot any issues. However, the same functionality allows an attacker to execute commands on the device. The POST parameter "iw_serverip" is susceptible to buffer overflow. By crafting a packet that contains a string of 480 characters, it is possible for an attacker to execute the attack.

Frequently asked questions

What is CVE-2018-10703?: An issue was discovered on Moxa AWK-3121 1.14 devices. It provides functionality so that an administrator can run scripts on the device to troubleshoot any issues. However, the same functionality allows an attacker to execute commands on the device. The POST parameter "iw_serverip" is susceptible to buffer overflow. By crafting a packet that contains a string of 480 characters, it is possible for an attacker to execute the attack.
How severe is CVE-2018-10703?: CVE-2018-10703 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2018-10703 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (83rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2018-10703?: CVE-2018-10703 affects Moxa Awk-3121 Firmware. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2018-10703?: 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-2018-10703 published?: CVE-2018-10703 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-2018-10698 — Critical (CVSS 9.8): An issue was discovered on Moxa AWK-3121 1.14 devices. The device enables an unencrypted TELNET service by default.…
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