ZTE E8820V3 router product is impacted by a permission and access control vulnerability.

published 2020-02-27 6 y ago modified 2026-06-17 4 mo ago also EUVD-2020-28005

cvss: 6.5; version 3.1, NVD
cisa kev: Not listed; not in CISA's catalog
epss: 0.6%; EPSS 0.6% chance of exploitation in 30 days, percentile 47%
public exploits: 0; none known

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.

Patch / fix

fixed in 1

zte e8820v3_firmware 3.1.0.1000.5

Exploit prediction

0.58% chance of exploitation in the next 30 days, higher than 47% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by	version	score	vector
NVD	3.1	6.5	CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
NVD	2.0	3.3	AV:A/AC:L/Au:N/C:N/I:N/A:P

Affected products

ZTE Corporation E8820V3

References

support.zte.com.cn /support/news/LoopholeInfoDetail.aspx?newsId=1012382
vendor-advisory

Sources

CVE List CVE-2020-6863
NVD CVE-2020-6863

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Summary