There is a resource management error vulnerability in the verisions V500R001C60SPC500, V500R005C00SPC100, V500R005C00SPC200 of USG9500.

published 2021-05-27 5 y ago modified 2026-06-17 4 mo ago also EUVD-2021-9506

cvss: 4.9; 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 50%
public exploits: 0; none known

There is a resource management error vulnerability in the verisions V500R001C60SPC500, V500R005C00SPC100, V500R005C00SPC200 of USG9500. An authentication attacker needs to perform specific operations to exploit the vulnerability on the affected device. Due to improper resource management of the function, the vulnerability can be exploited to cause service abnormal on affected devices.

Exploit prediction

0.64% chance of exploitation in the next 30 days, higher than 50% of all scored CVEs (FIRST EPSS, 2026-11-08).

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 USG9500

Classification

Weakness

CWE-770 Allocation of Resources Without Limits or Throttling

References

huawei.com /en/psirt/security-advisories/huawei-sa-20210519-01-resource-en
vendor-advisory

Sources

CVE List CVE-2021-22360
NVD CVE-2021-22360

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Summary