How severe is CVE-2019-8950?

CVE-2019-8950 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-2019-8950 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (84th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2019-8950?

CVE-2019-8950 affects Dasannetworks H665 Firmware. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2019-8950?

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-2019-8950 published?

CVE-2019-8950 was published on 2019-02-20 and last updated on 2026-06-17.

CVE-2019-8950

CVE-2019-8950 is a critical-severity vulnerability in Dasannetworks H665 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: 3% (84th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-798
Affected product: Dasannetworks H665 Firmware
Published: 2019-02-20
Last modified: 2026-06-17

Description

The backdoor account dnsekakf2$$ in /bin/login on DASAN H665 devices with firmware 1.46p1-0028 allows an attacker to login to the admin account via TELNET.

Frequently asked questions

What is CVE-2019-8950?: The backdoor account dnsekakf2$$ in /bin/login on DASAN H665 devices with firmware 1.46p1-0028 allows an attacker to login to the admin account via TELNET.
How severe is CVE-2019-8950?: CVE-2019-8950 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-2019-8950 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (84th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2019-8950?: CVE-2019-8950 affects Dasannetworks H665 Firmware. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2019-8950?: 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-2019-8950 published?: CVE-2019-8950 was published on 2019-02-20 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:o:dasannetworks:h665_firmware:1.46p1-0028:*:*:*:*:*:*:*

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