How severe is CVE-2020-6863?

CVE-2020-6863 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 none, integrity none, and availability high.

Is CVE-2020-6863 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (43rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2020-6863?

CVE-2020-6863 affects Zte E8820v3 Firmware. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2020-6863?

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

When was CVE-2020-6863 published?

CVE-2020-6863 was published on 2020-02-27 and last updated on 2026-06-17.

CVE-2020-6863

CVE-2020-6863 is a medium-severity vulnerability in Zte E8820v3 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% (43rd percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Zte E8820v3 Firmware
Published: 2020-02-27
Last modified: 2026-06-17

Description

ZTE E8820V3 router product is impacted by a permission and access control vulnerability. Attackers could use this vulnerability to tamper with DDNS parameters and send DoS attacks on the specified URL.

Frequently asked questions

What is CVE-2020-6863?: ZTE E8820V3 router product is impacted by a permission and access control vulnerability. Attackers could use this vulnerability to tamper with DDNS parameters and send DoS attacks on the specified URL.
How severe is CVE-2020-6863?: CVE-2020-6863 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 none, integrity none, and availability high.
Is CVE-2020-6863 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (43rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2020-6863?: CVE-2020-6863 affects Zte E8820v3 Firmware. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2020-6863?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2020-6863 published?: CVE-2020-6863 was published on 2020-02-27 and last updated on 2026-06-17.

References

http://support.zte.com.cn/support/news/LoopholeInfoDetail.aspx?newsId=1012382

Affected products (1)

cpe:2.3:o:zte:e8820v3_firmware:*:*:*:*:*:*:*:*

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