There is an out-of-bounds read vulnerability in some versions of NIP6800, Secospace USG6600 and USG9500.

published 2020-12-24 5 y ago modified 2026-06-17 4 mo ago also EUVD-2020-30030

cvss: 6.5; version 3.1, NVD
cisa kev: Not listed; not in CISA's catalog
epss: 0.3%; EPSS 0.3% chance of exploitation in 30 days, percentile 25%
public exploits: 0; none known

There is an out-of-bounds read vulnerability in some versions of NIP6800, Secospace USG6600 and USG9500. The software reads data past the end of the intended buffer when parsing DHCP messages including crafted parameter. Successful exploit could cause certain service abnormal.

Exploit prediction

0.32% chance of exploitation in the next 30 days, higher than 25% 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

n/a NIP6800;Secospace USG6600;USG9500

Classification

Weakness

CWE-125 Out-of-bounds Read

References

huawei.com /en/psirt/security-advisories/huawei-sa-20200122-04-eudemon-en
vendor-advisory

Sources

CVE List CVE-2020-9201
NVD CVE-2020-9201

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Summary