Huawei products NIP6800;Secospace USG6600;USG9500 have a memory leak vulnerability.

published 2020-06-05 6y ago modified 2026-06-17 4mo ago also EUVD-2020-12709

cvss: 4.9; version 3.1, NVD
cisa kev: Not listed; not in CISA's catalog
epss: 0.8%; EPSS 0.8% chance of exploitation in 30 days, percentile 56%
public exploits: 0; none known

Huawei products NIP6800;Secospace USG6600;USG9500 have a memory leak vulnerability. An attacker with high privileges exploits this vulnerability by continuously performing specific operations. Successful exploitation of this vulnerability can cause service abnormal.

Is CVE-2020-1883 in your stack? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.

Check with Fencer

Exploit prediction

0.80% chance of exploitation in the next 30 days, higher than 56% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by	version	score	vector
NVD	3.1	4.9	CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H
NVD	2.0	4.0	AV:N/AC:L/Au:S/C:N/I:N/A:P

Affected products

n/a NIP6800
n/a Secospace USG6600
n/a USG9500

Classification

Weakness

CWE-401 Missing Release of Memory after Effective Lifetime

References

huawei.com /en/psirt/security-advisories/huawei-sa-20200603-01-memory-en
vendor-advisory

Sources

CVE List CVE-2020-1883
NVD CVE-2020-1883

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.