How severe is CVE-2018-14943?

CVE-2018-14943 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-2018-14943 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (70th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2018-14943?

CVE-2018-14943 affects Harmonicinc Nsg 9000 Firmware. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2018-14943?

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-2018-14943 published?

CVE-2018-14943 was published on 2018-08-05 and last updated on 2026-06-17.

CVE-2018-14943

CVE-2018-14943 is a critical-severity vulnerability in Harmonicinc Nsg 9000 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-798.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
CVSS v2: 10.0
EPSS exploit prediction: 1% (70th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-798
Affected product: Harmonicinc Nsg 9000 Firmware
Published: 2018-08-05
Last modified: 2026-06-17

Description

Harmonic NSG 9000 devices have a default password of nsgadmin for the admin account, a default password of nsgguest for the guest account, and a default password of nsgconfig for the config account.

Frequently asked questions

What is CVE-2018-14943?: Harmonic NSG 9000 devices have a default password of nsgadmin for the admin account, a default password of nsgguest for the guest account, and a default password of nsgconfig for the config account.
How severe is CVE-2018-14943?: CVE-2018-14943 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-2018-14943 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (70th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2018-14943?: CVE-2018-14943 affects Harmonicinc Nsg 9000 Firmware. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2018-14943?: 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-2018-14943 published?: CVE-2018-14943 was published on 2018-08-05 and last updated on 2026-06-17.

References

https://github.com/pudding2/NSG9000/blob/master/exp.txt

Affected products (1)

cpe:2.3:o:harmonicinc:nsg_9000_firmware:-:*:*:*:*:*:*:*

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