How severe is CVE-2019-3420?

CVE-2019-3420 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over an adjacent network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.

Is CVE-2019-3420 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (50th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2019-3420?

CVE-2019-3420 affects Zte Zxhn H108n Firmware. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2019-3420?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2019-3420 published?

CVE-2019-3420 was published on 2019-11-13 and last updated on 2026-06-17.

CVE-2019-3420

CVE-2019-3420 is a medium-severity vulnerability in Zte Zxhn H108n Firmware with a CVSS 3.x base score of 6.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Severity: Medium (CVSS 3.x base score 6.5)
CVSS v2: 3.3
EPSS exploit prediction: 1% (50th percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Zte Zxhn H108n Firmware
Published: 2019-11-13
Last modified: 2026-06-17

Description

All versions up to V2.5.0_EG1T5_TED of ZTE ZXHN H108N product are impacted by an information leak vulnerability. An attacker could exploit the vulnerability to obtain sensitive information and perform unauthorized operations.

Frequently asked questions

What is CVE-2019-3420?: All versions up to V2.5.0_EG1T5_TED of ZTE ZXHN H108N product are impacted by an information leak vulnerability. An attacker could exploit the vulnerability to obtain sensitive information and perform unauthorized operations.
How severe is CVE-2019-3420?: CVE-2019-3420 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over an adjacent network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.
Is CVE-2019-3420 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (50th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2019-3420?: CVE-2019-3420 affects Zte Zxhn H108n Firmware. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2019-3420?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2019-3420 published?: CVE-2019-3420 was published on 2019-11-13 and last updated on 2026-06-17.

References

http://support.zte.com.cn/support/news/LoopholeInfoDetail.aspx?newsId=1011802

Affected products (1)

cpe:2.3:o:zte:zxhn_h108n_firmware:*:*:*:*:*:*:*:*

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