Huawei NIP6800 versions V500R001C30, V500R001C60SPC500, and V500R005C00; Secospace USG6600 and USG9500 versions V500R001C30SPC200, V500R001…

published 2020-02-17 6y ago modified 2026-06-17 4mo ago also EUVD-2020-12641

cvss: 7.5; version 3.1, NVD
cisa kev: Not listed; not in CISA's catalog
epss: 0.7%; EPSS 0.7% chance of exploitation in 30 days, percentile 54%
public exploits: 0; none known

Huawei NIP6800 versions V500R001C30, V500R001C60SPC500, and V500R005C00; Secospace USG6600 and USG9500 versions V500R001C30SPC200, V500R001C30SPC600, V500R001C60SPC500, and V500R005C00 have a memory leak vulnerability. The software does not sufficiently track and release allocated memory while parse certain message, the attacker sends the message continuously that could consume remaining memory. Successful exploit could cause memory exhaust.

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Exploit prediction

0.72% chance of exploitation in the next 30 days, higher than 54% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by	version	score	vector
NVD	3.1	7.5	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
NVD	2.0	4.3	AV:N/AC:M/Au:N/C:N/I:N/A:P

Affected products

Huawei NIP6800
Huawei Secospace USG6600, USG9500

Classification

Weakness

CWE-401 Missing Release of Memory after Effective Lifetime

References

huawei.com /en/psirt/security-advisories/huawei-sa-20200212-02-firewall-en
vendor-advisory

Sources

CVE List CVE-2020-1815
NVD CVE-2020-1815

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